Can body type change?

Frame size is mostly fixed, but muscle and fat distribution change with training and nutrition.

Body Type Calculator — Ectomorph, Mesomorph, Endomorph

Estimate somatotype from wrist circumference and height. Free body type calculator.

Wrist (in)

Height (in)

Gender

Formula used

Frame index = Height ÷ Wrist
Maps to ectomorph / mesomorph / endomorph

Examples

Try a sample calculation

5'8", 6.5 in wrist

Sample

Frame-size method.

Fitness planning context.

Enter the required fields—dates, amounts, percentages, or measurements as labeled.
Double-check units (currency, tax rate, height/weight) match your scenario.
Run the calculation and read the breakdown, not just the headline number.
Adjust inputs to compare scenarios, or open a related Rankify calculator for the next step.

Free online body shape calculator — fast, accurate, and private on Rankify.

Calculate Body Mass Index from height and weight.