Skip to content
ENExplore Calculators

Frame Size From Wrist Calculator

Work out frame size from wrist instantly with clear inputs, formula shown and shareable results.

About Frame Size From Wrist Calculator

Frame size is estimated from the ratio of height to wrist circumference, because wrist girth is almost entirely bone and skin rather than fat or muscle. For men a ratio above 10.4 indicates a small frame and below 9.6 a large one. Ideal body weight tables are conventionally adjusted about 10% down for small frames and up for large ones.

Formulas

Frame ratio

ratio = height(cm) / wrist circumference(cm)

Men's bands

above 10.4 small, 9.6 to 10.4 medium, below 9.6 large

Worked example

With the default values below, Frame Size From Wrist Calculator returns Height To Wrist Ratio of 10.29. Change any input above and every figure here is recalculated in your browser.

Inputs used

Wrist circumferenceminimum 5 cm
17 cm
Heightminimum 100 cm
175 cm
Sexone of Male, Female
Male

Results

Height To Wrist Ratio
10.29
Frame Size
Medium frame
Suggested Ideal Weight Adjustment
0%
Wrist Circumference Used
17.0 cm

Step by step

  1. 1Values used
  2. 2Frame ratio
  3. 3Men's bands
  4. 4Height To Wrist Ratio= 10.29
  5. 5Frame Size= Medium frame
  6. 6Suggested Ideal Weight Adjustment= 0
  7. 7Wrist Circumference Used= 17.0 cm

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • These figures are population-average estimates, not a medical assessment or diagnosis. Body composition equations carry errors of several percentage points, and healthy ranges vary with age, ethnicity, muscularity and medical history. Discuss weight or body composition goals with a qualified clinician or dietitian.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

These figures are population-average estimates, not a medical assessment or diagnosis. Body composition equations carry errors of several percentage points, and healthy ranges vary with age, ethnicity, muscularity and medical history. Discuss weight or body composition goals with a qualified clinician or dietitian.

Frequently Asked Questions

Why use the wrist rather than the elbow?

Both work, but the wrist has almost no soft tissue, so the measurement is unaffected by body fat.

Does frame size really change healthy weight?

It shifts the middle of the range modestly. It does not move the boundaries of the healthy BMI band, which are set by outcome data.

Related Calculators

Frame Size From Wrist Calculator | Calcrivo