Body Type Calculator
Estimate whether you have an ectomorph, mesomorph, or endomorph body frame from your height and wrist circumference.
Mesomorph
Your height-to-wrist ratio of 10.94 places you toward the Mesomorph end of the frame-size spectrum.
A rough frame-size estimate based on the height-to-wrist ratio method — not a precise medical classification.
About the Body Type Calculator
This estimates a body frame type — ectomorph, mesomorph, or endomorph — from the ratio of your height to your wrist circumference, a simple proxy some fitness circles use for bone frame size rather than actual body fat or muscle content.
The three-category somatotype system originated in mid-20th-century physique research and isn't a precise medical classification — most real bodies are some blend of the three categories rather than a clean fit into one, and this wrist-ratio method is a rough shortcut, not a measurement of your actual skeletal structure.
It's mostly used informally in fitness contexts to get a general sense of natural body frame — some people use it to set expectations around muscle-gain or fat-loss goals, on the idea that frame size affects how a body tends to respond to training.
Height and wrist measurements aren't especially sensitive, but the calculation still runs entirely in your browser with nothing recorded or transmitted.
How it’s calculated
The ratio is simply height divided by wrist circumference — a higher ratio (larger height relative to a slender wrist) leans ectomorph, while a lower ratio (relatively thick wrist for the height) leans endomorph, with mesomorph in between.
Thresholds differ by sex because average bone structure and typical wrist-to-height proportions differ between men and women, so the same ratio number can map to a different category depending on which sex-specific threshold set is applied.
Frequently asked questions
What do ectomorph, mesomorph, and endomorph actually mean?
They're a mid-20th-century classification of general body frame: ectomorph describes a naturally slender frame, mesomorph a naturally athletic/muscular frame, and endomorph a naturally broader frame — they describe frame tendency, not fitness level or body fat directly.
How accurate is the wrist-to-height ratio method?
It's a rough, informal proxy rather than a validated medical measurement — actual frame size involves bone structure and joint measurements this simple ratio doesn't fully capture, so treat the result as a general indication, not a precise classification.
Can I change my body type through diet or exercise?
Bone frame itself doesn't change much in adulthood, but body composition (muscle and fat) absolutely does — many people use somatotype loosely to describe overall physique goals even though the underlying frame classification is meant to be more fixed.
Why does the calculator ask for sex before giving a result?
Because typical wrist-to-height proportions differ between men and women, using sex-specific thresholds gives a more meaningful category placement than applying one universal cutoff to everyone.
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