Auto Lease Calculator
Calculate your monthly auto lease payment, total lease cost, and compare leasing vs buying.
| Metric | Lease | Buy (Finance) |
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Calculate your monthly car lease payment from MSRP, negotiated price, residual value, and money factor, and compare the total cost of leasing against financing the same vehicle.
How Auto Lease Calculator Works
A lease payment has two parts. The depreciation fee is the vehicle's expected loss in value over the lease, calculated as (Adjusted Capitalized Cost − Residual Value) ÷ Lease Term, where the adjusted cap cost is the negotiated price minus your down payment plus any acquisition fee. The finance fee, which functions like interest, is calculated as (Adjusted Cap Cost + Residual Value) × Money Factor — the lease industry's equivalent of an interest rate, typically shown as a small decimal such as 0.00175.
Multiplying the money factor by 2,400 converts it into an approximate equivalent APR, which makes it easier to compare a lease offer against a standard auto loan rate. Sales tax is then applied to the base monthly payment (depreciation + finance fee) to arrive at your final payment.
The lease-vs-buy comparison estimates what financing the same vehicle would cost using a standard loan formula at a representative market interest rate, letting you weigh the lower lease payment against the fact that you don't own the car — and still owe the residual value — at the end of the term.
See It In Action
Who Uses Auto Lease Calculator and Why
- Working out the monthly payment on a lease offer from the dealer\'s negotiated price, residual value, and money factor.
- Converting a dealer\'s quoted money factor into an approximate APR to compare against a standard auto loan rate.
- Deciding whether leasing or financing the same vehicle is the better fit based on total cost over the term.
- Checking how much a lower negotiated cap cost or a larger down payment would actually lower the monthly lease payment.
Mistakes to Avoid
- Comparing a lease\'s low monthly payment directly against a loan payment without also weighing that leasing builds no ownership and you still owe the residual value (or must return the car) at the end of the term.
- Not converting the money factor to an approximate APR (money factor × 2,400) before judging whether the financing terms are competitive — a money factor on its own, as a small decimal, doesn\'t look like a rate at first glance.
- Forgetting that sales tax is applied to the base monthly payment (depreciation + finance fee), not to the vehicle\'s full price the way it typically is on a purchase — this can lead to underestimating the final payment.
Tips for Best Results
- Negotiate the cap cost (the vehicle\'s price in the lease) the same way you would negotiate a purchase price — it directly lowers both the depreciation and finance fee portions of your payment.
- A higher residual value set by the leasing company lowers your monthly payment, since it reduces the projected depreciation you\'re paying for — this is often a bigger lever than the money factor itself.
Fixing Common Problems
My calculated payment doesn\'t match the dealer\'s quote. — Confirm you\'re using the actual negotiated (capitalized) cost, not MSRP, along with the exact residual value, money factor, and acquisition fee from the dealer\'s worksheet — a mismatch in any one of these inputs changes the payment.
Terms Explained
Money factor: The lease industry\'s equivalent of an interest rate, usually shown as a small decimal (like 0.00175); multiplying it by 2,400 gives an approximate equivalent APR.
Residual value: The vehicle\'s projected worth at lease-end, set by the leasing company — a higher residual value means less projected depreciation and a lower payment.