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Body Frame Calculator

Determine your body frame size from wrist circumference and height.

Introduction

Body Frame Calculator — Determine your body frame size from wrist circumference and height. Enter Gender, Height (cm), Wrist circumference (cm) to get an instant, accurate result.

Formula

Frame Size Index = height(cm) ÷ wrist circumference(cm). Using standard body-composition reference tables: for men, a ratio above 10.4 indicates a small frame and below 9.6 a large frame (medium in between); for women, above 11.0 is small and below 10.1 is large.

Step-by-step

  1. Enter the Gender.
  2. Enter the Height (cm).
  3. Enter the Wrist circumference (cm).
  4. Click Calculate to see your result instantly.

Real-world example

Example: With Gender = male, Height (cm) = 170, Wrist circumference (cm) = 16, the Body Frame Calculator gives Ratio: 10.625, Frame: Small.

Frequently Asked Questions

Why does frame size matter for weight goals?
A larger frame naturally carries more bone and muscle mass, so healthy weight ranges (like ideal weight formulas) are sometimes adjusted based on frame size.
How should I measure my wrist?
Measure around the wrist just below the wrist bone (where a watch would sit), using a flexible tape measure.
What inputs does the Body Frame Calculator need?
You'll need to provide: Gender, Height (cm), Wrist circumference (cm). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Body Frame Calculator?
The Body Frame Calculator applies the formula exactly as calculated — Frame Size Index = height(cm) ÷ wrist circumference(cm). Using standard body-composition reference tables: for men, a ratio above 10.4 indicates a small frame and below 9.6 a large frame (medium in between); for women, above 11.0 is small and below 10.1 is large. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is this a medical diagnosis?
No. The Body Frame Calculator provides an estimate based on standard formulas and general population data, not a medical diagnosis or personalized clinical advice. Individual results can vary — consult a doctor or other qualified healthcare provider for medical concerns.
Is the Body Frame Calculator free to use?
Yes, the Body Frame Calculator is completely free, requires no signup, and runs instantly in your browser.

About the Body Frame Calculator

The Body Frame Calculator uses a real, verifiable formula — Frame Size Index = height(cm) ÷ wrist circumference(cm). Using standard body-composition reference tables: for men, a ratio above 10.4 indicates a small frame and below 9.6 a large frame (medium in between); for women, above 11.0 is small and below 10.1 is large. — so results are accurate every time, not an approximation.