Height tool
Frame size calculator
Estimate body frame size from height and wrist circumference across five categories.
| Frame | Wrist / height ratio |
|---|
Measure around the smallest part of the wrist. The tape should touch the skin without compressing it.
How it works
This calculator uses sex-specific wrist-to-height ratio ranges. Wrist circumference is compared with total height, then grouped into very narrow, narrow, medium, broad, very broad frame size.
Example
Two people can have the same height and weight but different frame sizes. A broader wrist relative to height usually points to a larger skeletal frame.
Limitations
Frame size is an estimate. Wrist measurement technique, body fat, muscle, age, and ancestry can affect the result. Treat it as a helpful body-build indicator, not a medical diagnosis.
FAQ
Where should I measure my wrist?
Measure around the smallest part of the wrist, just above the wrist bone, with the tape snug but not tight.
Is frame size the same as BMI?
No. BMI uses height and weight. Frame size estimates skeletal build using wrist circumference relative to height.
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