Determine whether you have a small, medium, or large body frame from your height-to-wrist ratio.
How It Works
How Body Frame Size Calculator Works
Because it's a ratio of two lengths, this works the same whether you measure in centimeters or inches, as long as height and wrist are both in the same unit — the ratio is compared against standard small/medium/large frame thresholds, which differ slightly between men and women.
Worked Example
See It In Action
A height of 170 cm and wrist circumference of 14 cm gives a ratio of about 12.1, which falls into the "small frame" category for men.
FAQ
Frequently Asked Questions
Why does frame size matter?
It's sometimes used alongside BMI or weight charts, since a larger-framed person can carry more muscle and bone mass at a given height without that necessarily meaning excess fat.
Where exactly should I measure my wrist?
Measure around the wrist at the point just below the wrist bone, where the wrist is narrowest, for the most consistent result.
