Toolstia / Body frame size calculator
Body frame size calculator
Frame size describes how big your bones are. It is worked out by dividing your height by your wrist circumference. Enter both to see whether you have a small, medium or large frame.
Measure around the wrist bone of your smaller wrist, just above the hand.
Frame size is a rough way to judge whether an ideal weight range should lean lower or higher. Small frame suggests the lower end, large frame the higher end.
How it works
- Choose sex and units.
- Measure your wrist and your height.
- Read your frame size.
The method
The ratio r is height divided by wrist circumference. For men, above 10.4 is small, 9.6 to 10.4 is medium and under 9.6 is large. For women, above 11.0 is small, 10.1 to 11.0 is medium and under 10.1 is large.
Measuring the wrist
Wrap a tape around the wrist just above the wrist bone, on the hand side of the bony bump, on the smaller wrist.
Using the result
People with small frames are often advised to aim for the lower end of ideal weight ranges and people with large frames the upper end. It is a rough adjustment only.
Limits
Wrist size is a crude stand-in for bone structure. It does not tell you about body fat.
Questions
Should I measure both wrists?
The smaller one is used, since the dominant wrist may be thicker.
Is this medical advice?
No. It is a general estimate. Speak to a doctor or dietitian about your own health and goals.
Is anything uploaded?
No. Your measurements stays in your browser and is never sent anywhere.