Body Type Calculator
Determine ectomorph, mesomorph, endomorph. Enter values for instant results with step-by-step formulas.
Formula
Frame Ratio = Height / Wrist Circumference
Wrist circumference relative to height indicates skeletal frame size, which correlates with body type tendencies.
Worked Examples
Example 1: Frame Size Calculation
Problem:Height 72 inches, wrist circumference 7 inches.
Solution:Frame ratio = Height / Wrist\nRatio = 72 / 7 = 10.3\n\nClassification:\n> 10.4 = Small frame (Ectomorph)\n9.6 - 10.4 = Medium frame (Mesomorph)\n< 9.6 = Large frame (Endomorph)\n\nRatio 10.3 falls in Medium frame range\nBody type: Mesomorph tendency
Result:Medium frame - Mesomorph
Example 2: Full Body Type Assessment
Problem:Male: Height 68\", wrist 6\", shoulders 17\", hips 36\".
Solution:Frame ratio = 68 / 6 = 11.3\nClassification: Small frame (Ectomorph)\n\nShoulder-to-hip ratio = 17 / 36 = 0.47\n(This is shoulder width, not circumference)\n\nUsing circumference: 44\" / 36\" = 1.22\nShape: Rectangle build\n\nConclusion: Ectomorph with rectangular build\nFocus: Building muscle mass, high calories
Result:Ectomorph - Rectangle build
Example 3: Training Recommendation
Problem:Endomorph body type, goal is fat loss and muscle definition.
Solution:Body type: Endomorph\nTypical challenges: Gains fat easily, slower metabolism\n\nTraining recommendations:\n- 3-4 strength sessions/week\n- 2-3 cardio sessions (HIIT effective)\n- Higher rep ranges (10-15)\n- Shorter rest periods\n- Consider circuit training\n\nNutrition:\n- Moderate calorie deficit (300-500)\n- High protein (1g/lb bodyweight)\n- Lower carbs, higher on training days\n- Track calories meticulously
Result:Strength + cardio combo, calorie deficit
Frequently Asked Questions
What are the three body types?
Ectomorph: Lean, long, difficulty gaining weight. Mesomorph: Naturally muscular, medium frame, gains muscle easily. Endomorph: Wider build, gains weight easily, stores fat readily. Most people are a mix of types rather than purely one.
How accurate is body type classification?
Somatotypes (ectomorph, mesomorph, endomorph) were developed in the 1940s and have limited scientific support as fixed categories. They're useful as general descriptors but shouldn't be treated as destiny. Anyone can build muscle or lose fat with proper training and nutrition.
Can I change my body type?
You can't change your skeletal frame, but you can dramatically change your body composition. An 'ectomorph' can build significant muscle with consistent training and eating. An 'endomorph' can get very lean with proper diet. Don't let labels limit you.
How does wrist size indicate body type?
Wrist circumference relative to height indicates frame size because wrists have minimal fat - it's mostly bone. Larger wrists relative to height suggest larger bone structure. This correlates with overall skeletal frame but doesn't determine muscle or fat potential.