Professional PDF Tools &
Online Calculators

Mortgage CalculatorCalculate monthly mortgage payments and total cost Mortgage PayoffFind out when your mortgage will be fully paid Mortgage AmortizationView full month-by-month loan payment schedule Mortgage UKCalculate UK mortgage repayments in pounds Canadian MortgageCalculate Canadian mortgage with semi-annual compounding House AffordabilityFind out how much house you can afford Down PaymentCalculate the down payment for a home purchase FHA LoanEstimate FHA loan payments with MIP included VA MortgageCalculate VA home loan payments for veterans Home Equity LoanBorrow against your home's equity HELOCCalculate home equity line of credit payments Rent vs. BuyCompare the long-term cost of renting vs. buying Rent CalculatorEstimate how much rent you can afford to pay Rental PropertyAnalyze rental property cash flow and returns Real EstateCalculate real estate investment metrics and ROI RefinanceCompare refinancing options and calculate savings

Loan CalculatorCalculate monthly payments for any loan Auto LoanEstimate car loan payments and total interest cost Personal LoanCalculate personal loan repayment schedule Business LoanEstimate business loan payments and interest Student LoanCalculate student loan payments and payoff date Boat LoanEstimate marine and boat financing costs Debt PayoffPlan your debt elimination strategy with snowball method Debt ConsolidationCombine multiple debts into a single payment Debt-to-Income RatioCalculate your DTI ratio for loan qualification RepaymentPlan loan repayment with flexible term options Credit CardCalculate credit card interest and minimum payments Credit Card PayoffFind out how long to pay off your card balance APR CalculatorCalculate the true annual percentage rate of a loan Payment CalculatorFind the payment amount for any loan or term AmortizationSee principal vs. interest breakdown over time Lease CalculatorCalculate monthly lease payments and total cost Auto LeaseEstimate car lease payments and money factor

InvestmentProject returns on your investments over time SavingsCalculate how fast your savings will grow Compound InterestSee the power of compounding on your money Simple InterestCalculate basic interest earned or owed InterestCompute interest for any rate, term, or amount Interest RateFind the interest rate on a loan or investment CD CalculatorCalculate certificate of deposit returns and APY Bond CalculatorEstimate bond yields and maturity value Mutual FundProject mutual fund investment growth over time Average ReturnCalculate average investment return rate (CAGR) ROI CalculatorMeasure return on investment as a percentage IRR CalculatorFind internal rate of return for investments Present ValueCalculate today's value of future cash flows Future ValueProject the future value of current investments Payback PeriodFind how long to recoup an investment outlay AnnuityCalculate annuity payment amounts and present value Annuity PayoutEstimate regular payout amounts from an annuity Margin CalculatorCalculate gross, net, and operating profit margins

RetirementProject retirement savings and monthly income 401K CalculatorEstimate 401(k) balance at retirement with employer match Roth IRACalculate tax-free Roth IRA growth at retirement IRA CalculatorEstimate traditional IRA balance and withdrawals RMD CalculatorFind required minimum distribution from retirement accounts PensionEstimate monthly pension benefit at retirement age Social SecurityProject your monthly Social Security benefit amount Income TaxEstimate annual federal income tax owed Sales TaxCalculate sales tax for any purchase and state rate VAT CalculatorAdd or remove VAT from prices instantly Marriage TaxCalculate marriage tax benefit or penalty for couples Estate TaxEstimate estate and inheritance tax liability Take-Home PayCalculate net pay after taxes and deductions SalaryConvert salary between hourly, weekly, and yearly College CostEstimate total college cost and savings needed BudgetCreate and manage a monthly household budget

CurrencyConvert between world currencies instantly InflationCalculate the effect of inflation on purchasing power FinanceGeneral financial calculation for any scenario Cash Back or Low InterestCompare cash back offers vs. low interest financing DepreciationCalculate asset depreciation using multiple methods DiscountCalculate discounted price after a percentage reduction Percent OffFind the final price after a sale or discount CommissionCalculate sales commission earnings and rates

Basic CalculatorPerform addition, subtraction, multiplication, division Scientific CalculatorAdvanced math with trig, log, exponents, and more Fraction CalculatorAdd, subtract, multiply, and divide fractions Percentage CalculatorCalculate percent of, increase, decrease, and change Percent ErrorCalculate the accuracy of a measurement or estimate Average CalculatorFind arithmetic, geometric, harmonic, and weighted averages Rounding CalculatorRound numbers using multiple rounding methods Exponent CalculatorCalculate powers and exponential expressions Root CalculatorFind square roots, cube roots, and any nth root Long DivisionSolve division with step-by-step work shown Big Number CalculatorExact arithmetic with very large integers Random Number GeneratorGenerate random numbers within custom ranges

Area CalculatorFind area of circles, triangles, rectangles, and more Volume CalculatorCalculate volume of spheres, cylinders, cones, and shapes Surface AreaFind surface area of 3D geometric shapes Triangle CalculatorSolve any triangle using sides, angles, and area Right TriangleFind all sides and angles of a right triangle Pythagorean TheoremCalculate hypotenuse or legs of right triangles Circle CalculatorFind area, circumference, diameter from any value Distance CalculatorFind distance between two or three-dimensional points

StatisticsCompute comprehensive descriptive statistics from a dataset Standard DeviationMeasure data spread, variance, and variability Mean, Median, ModeFind central tendency measures for any dataset ProbabilityCalculate event probabilities and statistical distributions Z-scoreStandardize data values and find normal probabilities Confidence IntervalEstimate population parameters from sample data Sample SizeDetermine the required sample size for a study P-valueTest statistical significance for z, t, and chi-square tests Permutation & CombinationCount ordered arrangements and unordered selections

Quadratic FormulaSolve quadratic equations and find real or complex roots Slope CalculatorFind slope, angle, and equation of a line Log CalculatorCalculate logarithms in any base including ln and log10 Ratio CalculatorSimplify, solve, and scale ratios and proportions Factor CalculatorFind all factors and prime factors of any number Prime FactorizationBreak down numbers into prime factors with a factor tree GCF CalculatorFind the greatest common factor of multiple numbers LCM CalculatorFind the least common multiple of multiple numbers Common FactorFind all factors shared between two or more numbers Number SequenceGenerate arithmetic, geometric, and Fibonacci sequences Half-Life CalculatorCalculate radioactive decay and half-life of substances Matrix CalculatorPerform matrix operations including determinant and inverse Matrix MultiplicationMultiply two matrices with step-by-step dot products Determinant CalculatorCalculate matrix determinant via cofactor expansion steps Inverse MatrixFind A⁻¹ using Gauss-Jordan with all row operations shown Gauss-Jordan EliminationSolve linear systems Ax=b with complete row operation steps Cramer's RuleSolve equations using determinant substitution step by step Matrix RankFind matrix rank by row reducing to echelon form Matrix PowerRaise a matrix to any integer power Aⁿ with each step Matrix TransposeTranspose any matrix with element-by-element mapping Matrix Addition / SubtractionAdd or subtract two matrices element by element Inverse Matrix MethodSolve Ax=b via x=A⁻¹b with full inverse and multiply steps Binary CalculatorConvert and calculate in binary number format Hex CalculatorConvert between hexadecimal, decimal, binary, and octal Scientific NotationConvert and calculate numbers in scientific notation

BMI CalculatorCheck body mass index and healthy weight range Body Fat CalculatorEstimate your body fat percentage accurately Ideal WeightFind your ideal body weight for height and gender Healthy WeightDetermine healthy BMI weight range for your height Lean Body MassCalculate muscle and bone weight excluding body fat Overweight CalculatorDetermine how much above ideal weight you are Anorexic BMIIdentify dangerously low BMI thresholds Body TypeIdentify your somatotype: ectomorph, mesomorph, endomorph Body Surface AreaCalculate total skin surface area for medical dosing Army Body FatMeasure body fat using the US Army tape method

Calorie CalculatorFind daily calorie needs for weight loss or gain goals BMR CalculatorCalculate basal metabolic rate at complete rest TDEE CalculatorTotal daily energy expenditure based on activity level Macro CalculatorGet protein, carb, and fat targets for your diet goals Protein CalculatorFind daily protein intake for muscle and health goals CarbohydrateCalculate daily carbohydrate needs by activity level Fat IntakeDetermine healthy fat intake for your calorie budget Calories BurnedEstimate calories burned during any physical activity WW PointsCalculate Weight Watchers SmartPoints for foods

Pace CalculatorCalculate running pace, speed, and finish time One Rep MaxEstimate the maximum weight you can lift for one rep Target Heart RateFind optimal heart rate zones for effective exercise BAC CalculatorEstimate blood alcohol content from drinks consumed

PregnancyTrack pregnancy week by week with key milestone dates Due DateCalculate your baby's estimated due date Pregnancy Weight GainTrack recommended weight gain by trimester Pregnancy ConceptionCalculate conception date from due date or last period OvulationFind your most fertile days in the menstrual cycle ConceptionEstimate when conception occurred from due date Period CalculatorPredict next period and upcoming cycle dates

GFR CalculatorEstimate kidney filtration rate and chronic kidney disease stage

Translate PDFTranslate PDF documents into another language Image to Text (OCR)Extract and digitize text from any image file Text to ImageGenerate images from text descriptions using AI

Image CompressorReduce JPG, PNG, WebP file size in your browser Image ResizerResize images to exact pixels or percentage Image ConverterConvert between JPG, PNG, WebP formats Background RemoverRemove image backgrounds with AI — no uploads HEIC to JPGConvert iPhone HEIC photos to JPG or PNG SVG to PNGRender SVG files to high-resolution PNG

QR Code GeneratorCreate QR codes for URLs, text, and more JSON Formatter & ValidatorBeautify, minify and validate JSON instantly Base64 Encoder/DecoderEncode or decode Base64 strings in seconds Password GeneratorCreate strong, secure random passwords Color Picker / HEX↔RGBPick colors and convert HEX, RGB, HSL values URL Encoder/DecoderEncode or decode URL strings instantly Hash GeneratorGenerate MD5, SHA-256 and other hash values

Word & Character CounterCount words, characters, sentences and more Case ConverterUPPER, lower, Title, camelCase and more Lorem Ipsum GeneratorGenerate placeholder text for designs Text Diff CheckerCompare two blocks of text side by side Remove Duplicate LinesClean duplicate lines from any text block

Length Converterkm, miles, feet, inches, meters and more Weight Converterkg, lbs, oz, grams, stones and more Temperature ConverterCelsius, Fahrenheit, Kelvin conversion Speed Convertermph, km/h, m/s, knots and Mach

Age CalculatorCalculate exact age and days until next birthday Date Difference CalculatorFind the difference between two dates Time Duration CalculatorCalculate time between two points in time Time Zone ConverterConvert times between world time zones Time CalculatorAdd or subtract time from any start point

403(b) Retirement CalculatorProject your 403(b) balance at retirement, including any employer match. 50/30/20 Budget CalculatorSplit your take-home pay into needs, wants, and savings using the popular 50/30/20 budgeting rule. 529 College Savings CalculatorProject how a 529 college savings plan grows with regular contributions and compound returns. A Body Shape Index (ABSI) CalculatorCalculate A Body Shape Index (ABSI), a measure combining waist circumference, BMI, and height. ABV Calculator (Alcohol By Volume)Calculate alcohol by volume for homebrewing from original and final specific gravity readings. APY CalculatorConvert a nominal interest rate into its Annual Percentage Yield, accounting for compounding frequency. Absolute Value of a List of NumbersConvert an entire list of numbers to their absolute values at once. Add a Number to a List CalculatorAdd the same fixed number to every value in a list at once. Age CalculatorCalculate exact age, total days lived, and the time remaining until the next birthday. Average Percentage CalculatorFind the average of a list of percentages. BEE Calculator (Basal & Total Energy Expenditure)Calculate basal energy expenditure (BEE) and total energy expenditure adjusted for activity, illness stress, and fever. BTU CalculatorEstimate cooling or heating BTU requirements based on room size and sunlight level. Bandwidth CalculatorCalculate transfer speed, transfer time, or file size for network planning. Base64 Encode / DecodeEncode plain text to Base64 or decode Base64 back to readable text. Belt Size CalculatorFind the right belt size from your waist or pant size using the standard plus-2-inch rule. Beta Function CalculatorCalculate the Beta function B(m, n) using the Gamma function relationship. Bidiagonal Matrix CheckerCheck whether a square matrix has non-zero entries only on the main diagonal and the diagonal directly above it. Board Foot CalculatorCalculate board feet — the standard volume unit lumber is priced and sold by. Body Adiposity Index CalculatorEstimate body fat percentage from hip circumference and height, without needing a scale. Body Frame Size CalculatorDetermine whether you have a small, medium, or large body frame from your height-to-wrist ratio.

Boyle's Law CalculatorSolve for the missing pressure or volume value using Boyle's Law, at constant temperature. Bra Size CalculatorEstimate band and cup size from underbust and bust measurements. Break-Even CalculatorFind how many units you need to sell before a business covers its fixed costs. Brick CalculatorEstimate how many bricks are needed to build a wall of a given size. Business Days CalculatorCount the number of weekdays (Monday through Friday) between two dates. CAGR CalculatorCalculate the compound annual growth rate between a beginning and ending value. Case ConverterConvert text between uppercase, lowercase, title case, sentence case, and more. Chi-Square CalculatorCalculate a chi-square statistic comparing observed values against expected values. Coefficient of Variation CalculatorCalculate the coefficient of variation — standard deviation expressed as a percentage of the mean. Coin Flip Probability CalculatorCalculate the probability of getting a specific number of heads in a set number of fair coin flips. Color Picker / HEX RGB ConverterConvert colors between HEX, RGB, HSL formats and pick colors visually. Combination Calculator (nCr)Calculate the number of ways to choose r items from a set of n, where order doesn't matter. Concrete Block CalculatorEstimate how many concrete blocks are needed to build a wall of a given size. Concrete CalculatorEstimate concrete volume in cubic feet, cubic yards, and bag count for slabs or pours. Conversion CalculatorConvert values between common units for length, weight, temperature, and volume. Cooking Measurement ConverterConvert between common cooking measurement units — cups, tablespoons, teaspoons, fluid ounces, and milliliters. Correlation Coefficient CalculatorCalculate the Pearson correlation coefficient (r) between two paired data sets. Countdown CalculatorCount down the days, hours, and minutes remaining until any future date and time. Covariance CalculatorCalculate the covariance between two paired data sets. Crore to Lakh CalculatorConvert a value in crore to the equivalent in lakh, using the Indian numbering system.

Crore to Million CalculatorConvert a value in crore to the equivalent in million. Date CalculatorFind the difference between two dates or add and subtract time from a starting date. Day CounterCount the number of days between two dates, with optional inclusive counting. Day of the Week CalculatorFind the weekday for any date and its day number within the year. Debt Avalanche CalculatorSimulate paying off multiple debts highest-interest-rate-first, the mathematically optimal "debt avalanche" method. Debt Snowball CalculatorSimulate paying off multiple debts smallest-balance-first, the "debt snowball" method. Debt-to-Income Ratio CalculatorCalculate your debt-to-income ratio, a figure lenders use to assess how much of your income already goes to debt. Decking CalculatorEstimate the linear footage of decking boards needed to cover a deck area. Degrees Minutes Seconds CalculatorConvert coordinates or angles between decimal degrees and degrees-minutes-seconds (DMS) format. Density CalculatorCompute density from mass and volume. Dew Point CalculatorCalculate dew point temperature from air temperature and humidity. Diagonal Matrix CheckerCheck whether a square matrix is diagonal — every entry off the main diagonal equal to zero. Dice Probability CalculatorCalculate the probability of rolling a specific total with any number of dice. Dice RollerRoll multiple dice, apply modifiers, and view the full roll breakdown. Dividend Yield CalculatorCalculate a stock's dividend yield from its annual dividend per share and current price. Drywall CalculatorEstimate how many drywall sheets you need to cover a wall, based on standard 4×8 ft sheets. Electricity CalculatorEstimate energy usage and monthly electricity cost from wattage and runtime. Emergency Fund CalculatorFind your emergency fund target based on essential monthly expenses and desired months of coverage. Engine Horsepower CalculatorEstimate engine horsepower from vehicle weight and quarter-mile elapsed time. Expected Value CalculatorCalculate the expected value of an uncertain outcome from a list of values and their probabilities.

FIRE CalculatorCalculate your Financial Independence, Retire Early (FIRE) number and project when you'll reach it. Fabric Yardage CalculatorEstimate how many yards of fabric a rectangular sewing project needs, including a waste allowance. Fat-Free Mass Index CalculatorCalculate fat-free mass index (FFMI) from height, weight, and body fat percentage. Fence CalculatorCalculate how many posts and sections a fence needs for a given total length. Five Number Summary CalculatorCalculate the five-number summary of a data set: minimum, Q1, median, Q3, and maximum. Flooring CalculatorEstimate how much flooring material you need for a room, including waste and box count. Free Fall CalculatorCalculate the distance fallen and velocity reached after a given time in free fall. Fuel Cost CalculatorEstimate fuel needed and trip cost from distance, efficiency, and fuel price. GDP CalculatorCompute GDP using the expenditure formula: C + I + G + (X - M). GPA CalculatorEnter courses with credits and letter grades to calculate weighted GPA and quality points. Gas Mileage CalculatorCalculate fuel economy in MPG, km/L, and L/100 km. Golf Handicap CalculatorEstimate a handicap index from score, course rating, and slope rating history. Grade CalculatorCalculate a weighted course grade and see the score needed on the final exam. Gravel CalculatorEstimate gravel volume and tonnage for landscaping and base layers. Hash Generator (MD5 / SHA)Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text input. Heart Rate Zone CalculatorCalculate personalized training heart rate zones from your age (and optionally resting heart rate). Heat Index CalculatorEstimate the heat index from air temperature and relative humidity. Height CalculatorConvert height between feet and inches, centimeters, and meters. Horsepower CalculatorConvert torque and RPM into horsepower and kilowatts. Hours CalculatorWork out daily hours, weekly totals, and overtime from your shift schedule.

IP Subnet CalculatorCalculate subnet mask, host range, broadcast address, and available hosts from CIDR notation. IQ Percentile CalculatorConvert an IQ score into a percentile rank based on the standard normal distribution. IQR Calculator (Interquartile Range)Calculate the interquartile range — the spread of the middle 50% of a data set. Ideal Gas Law CalculatorSolve for pressure, volume, moles, or temperature using the ideal gas law (PV = nRT). Idempotent Matrix CheckerCheck whether a square matrix satisfies A × A = A. Insulation CalculatorEstimate how many insulation batts or rolls are needed to cover an area. Invertible Matrix CheckerCheck whether a square matrix has an inverse by testing if its determinant is non-zero. Involutory Matrix CheckerCheck whether a square matrix is its own inverse — A × A equals the identity matrix. JSON Formatter & ValidatorFormat, validate, and beautify JSON data with syntax highlighting. Kinetic Energy CalculatorCalculate the kinetic energy of a moving object from its mass and velocity. Leap Year CalculatorCheck whether any given year is a leap year in the Gregorian calendar. Length ConverterConvert between meters, kilometers, miles, feet, inches, yards, centimeters, and millimeters instantly. Linear Regression CalculatorFind the best-fit straight line (slope and intercept) through a set of x,y data points. Lorem Ipsum GeneratorGenerate placeholder text (Lorem Ipsum) for design mockups and testing. Love CalculatorGenerate a playful compatibility score based on two names. Lower Bidiagonal Matrix CheckerCheck whether a square matrix has non-zero entries only on the main diagonal and the diagonal directly below it. Lower Hessenberg Matrix CheckerCheck whether a square matrix has zero entries everywhere beyond the first diagonal above the main diagonal. Lower Triangular Matrix CheckerCheck whether every entry above the main diagonal of a square matrix is zero. Lumber CalculatorCalculate the total board feet across a multi-item lumber order. Margin of Error CalculatorCalculate the margin of error for a sample estimate at a chosen confidence level.

Mass CalculatorCalculate mass from density and volume. Max Heart Rate CalculatorEstimate maximum heart rate from age, using both the classic and Tanaka formulas. Mean Absolute Deviation CalculatorCalculate the mean absolute deviation — the average distance of each value from the mean. Mileage CalculatorCalculate trip mileage from odometer readings and cost per mile. Military Time ConverterConvert between 12-hour clock time and 24-hour military time. Million to Billion CalculatorConvert a value in million to the equivalent in billion. Million to Lakh CalculatorConvert a value in million to the equivalent in lakh. Million to Thousand CalculatorConvert a value in million to the equivalent in thousand. Molarity CalculatorCalculate molarity from moles and solution volume, or from grams and molecular weight. Molecular Weight CalculatorParse a chemical formula and calculate its molecular weight. Momentum CalculatorCalculate the momentum of a moving object from its mass and velocity. Mulch CalculatorEstimate mulch volume in cubic feet, cubic yards, and bag count. NPV CalculatorCalculate the Net Present Value of an investment from its initial cost and a series of future cash flows. Negative Definite Matrix CheckerCheck whether a symmetric matrix is negative definite — the mirror image of positive definite. Negative Semi-Definite Matrix CheckerCheck whether a symmetric matrix is negative semi-definite, a relaxed version of negative definite that allows zero. Net Worth CalculatorCalculate your net worth by subtracting total liabilities from total assets. Nilpotent Matrix CheckerCheck whether repeatedly multiplying a square matrix by itself eventually produces the all-zero matrix. Nonsingular Matrix CheckerCheck whether a square matrix is nonsingular by testing if its determinant is non-zero. Normal Matrix CheckerCheck whether a square matrix commutes with its own transpose (A·Aᵀ = Aᵀ·A). Odds CalculatorConvert between probability and decimal betting odds.

Ohms Law CalculatorEnter any two electrical values to solve voltage, current, resistance, and power. Orthogonal Matrix CheckerCheck whether a square matrix satisfies A·Aᵀ = the identity matrix. Outlier CalculatorIdentify statistical outliers in a data set using the standard 1.5×IQR fence method. Paint CalculatorEstimate how many gallons of paint you need based on wall area, number of coats, and coverage rate. Password GeneratorGenerate a strong random password with customizable character sets. Permutation Calculator (nPr)Calculate the number of ways to arrange r items from a set of n, where order matters. Ponderal Index CalculatorCalculate the Ponderal Index, an alternative to BMI that divides weight by height cubed instead of squared. Positive Definite Matrix CheckerCheck whether a symmetric matrix is positive definite using Sylvester's criterion. Potential Energy CalculatorCalculate the gravitational potential energy of an object based on its mass and height. Power Calculator (Physics)Calculate power — the rate at which work is done or energy is transferred — from work and time. Pressure CalculatorCalculate pressure from force and the area it's applied over. Projectile Motion CalculatorCalculate the range, maximum height, and flight time of a projectile launched at an angle. QR Code GeneratorGenerate a QR code from any text, URL, or data instantly. Quartile CalculatorFind the first, second (median), and third quartiles of a data set. Rebar CalculatorEstimate the total length of rebar needed for a grid-reinforced concrete slab. Relative Fat Mass CalculatorEstimate body fat percentage from height and waist circumference using the Relative Fat Mass (RFM) method. Remove Duplicate LinesRemove duplicate lines from text while preserving order or sorting. Resistor CalculatorDecode 4-band resistor color codes into resistance and tolerance. Ring Size ConverterConvert a ring's measured circumference or diameter into a US ring size. Roman Numeral ConverterConvert integers to Roman numerals and Roman numerals back to integers.

Roof Pitch CalculatorCalculate a roof's pitch angle and slope percentage from its rise and run. Roofing CalculatorEstimate roof area, roofing squares, and shingle bundles with waste and pitch. Rule of 72 CalculatorEstimate how many years it takes an investment to double at a given annual growth rate. Shoe Size ConversionConvert shoe sizes between US men, US women, UK, and EU systems. Skinfold Body Fat Calculator (Jackson-Pollock 3-Site)Estimate body fat percentage from three skinfold measurements using the Jackson-Pollock formula. Sleep CalculatorFind ideal bedtimes or wake-up times based on 90-minute sleep cycles. Sleep Debt CalculatorAdd up accumulated sleep debt from a series of nights against a target amount of sleep. Speed CalculatorCalculate speed from distance and travel time. Speed ConverterConvert speed between mph, km/h, m/s, knots, and more. Square Footage CalculatorCalculate floor area in square feet, square yards, and square meters. Stair CalculatorCalculate number of steps, rise per step, tread depth, and stair angle. Standard Drink CalculatorCalculate how many US standard drinks are in a given volume and alcohol percentage. Steps to Calories CalculatorEstimate calories burned from a step count, based on body weight. Steps to Miles CalculatorConvert a step count into an estimated distance in miles, based on your stride length. Stock Average (Cost Basis) CalculatorCalculate your average cost per share across multiple purchases at different prices. Stock Split CalculatorSee how many shares you'll hold and what the new price per share will be after a stock split. Stride Length CalculatorWork out your average stride length from a measured walking distance and step count. T-Test CalculatorCalculate the t-statistic for comparing the means of two independent samples. Temperature ConverterConvert temperatures between Celsius, Fahrenheit, and Kelvin instantly. Text Diff CheckerCompare two blocks of text and highlight the differences line by line.

Tile CalculatorEstimate tile quantity and extra material needed for a floor or wall area. Time CalculatorCalculate the exact duration between two times and account for unpaid breaks. Time Card CalculatorPaste daily shifts to total weekly hours, regular time, and overtime. Time Duration CalculatorMeasure the duration between two date and time values. Time Zone CalculatorConvert a date and time between common UTC offsets. Tip CalculatorCalculate tip amount, total bill, and cost per person. Tire Size CalculatorCalculate tire diameter, circumference, sidewall height, and compare alternate sizes. URL Encode / DecodeEncode text for safe use in URLs or decode an encoded string. Unit Price CalculatorCompare two products by price per unit to find the better deal, regardless of package size. Unix Time ConverterConvert a Unix timestamp to a readable date, or a date back into a Unix timestamp. VO2 Max Calculator (Cooper Test)Estimate VO2 max — a measure of aerobic fitness — from the distance covered in a 12-minute run. Voltage Drop CalculatorEstimate conductor resistance and voltage drop by cable size, material, and run length. Waist-to-Height Ratio CalculatorCalculate your waist-to-height ratio using the "keep your waist below half your height" health guideline. Waist-to-Hip Ratio CalculatorCalculate your waist-to-hip ratio, a measure the WHO uses to assess health risk related to fat distribution. Water Intake CalculatorEstimate a suggested daily water intake based on body weight and activity level. Week Number CalculatorFind the ISO week number for any date. Weight CalculatorCalculate weight force from mass and gravitational acceleration. Weight ConverterConvert between kilograms, pounds, ounces, grams, stones, and metric tons. Wind Chill CalculatorCalculate how cold the air feels with wind speed taken into account. Word & Character CounterCount words, characters, sentences, paragraphs, and reading time.

Work Calculator (Physics)Calculate the work done by a force acting over a distance, at any angle. Zakat CalculatorCalculate zakat owed at 2.5% of net zakatable wealth, once it meets the nisab threshold. pH CalculatorConvert between pH and hydrogen ion concentration.