🏋️Body Type Calculator
Discover your body type (Ectomorph, Mesomorph, or Endomorph) and get personalized fitness and nutrition recommendations based on your unique physique.
Body Analysis
Basic Information:
Physical Characteristics:
Measure around your wrist bone
Estimate or use body fat scale
Lifestyle & Metabolism:
Your Body Type
Complete your information to discover your body type
Body Type Overview
Ectomorph
Naturally lean and tall
Key Traits:
• Fast metabolism
• Difficulty gaining weight
• Lean muscle mass
Strengths:
• Natural endurance
• Stays lean easily
Mesomorph
Naturally athletic and muscular
Key Traits:
• Athletic build
• Gains muscle easily
• Moderate metabolism
Strengths:
• Builds muscle quickly
• Athletic performance
Endomorph
Naturally larger and curvier
Key Traits:
• Slow metabolism
• Gains weight easily
• Larger bone structure
Strengths:
• Natural strength
• Good muscle potential
Frequently Asked Questions
What are the main body types?
The three main body types are ectomorph (slim), mesomorph (muscular), and endomorph (rounded).
Why is body type important?
Knowing your body type helps customize diet and exercise plans for better results.
How to Use This Calculator
This body type calculator analyzes your physical characteristics and lifestyle factors to determine your somatotype. Follow these steps:
- Enter your basic information. Select your gender, enter your age, height, and weight. You can toggle between metric and imperial units using the button above the form.
- Provide physical measurements. Measure your wrist circumference around the wrist bone (use a flexible tape measure) and enter your estimated body fat percentage. Select your overall frame size based on your shoulder and hip width.
- Answer lifestyle questions. Select options that best describe your metabolism speed, how easily you gain or lose weight, and how easily you build muscle. Be honest for the most accurate results.
- View your results. The calculator will display your primary body type (and secondary type if applicable), a match percentage, your key characteristics, strengths, challenges, personalized exercise recommendations, nutrition guidelines, and lifestyle tips.
Understanding Somatotypes
The concept of somatotypes was introduced by American psychologist William H. Sheldon in the 1940s. He classified human physiques into three fundamental body types: ectomorph, mesomorph, and endomorph. While the original theory linked body type to personality (which has since been discredited), the physical classification system remains widely used in sports science, fitness training, and nutrition planning.
It is important to understand that most people are not purely one body type but rather a combination of two or even all three. For example, an "ecto-mesomorph" might be naturally lean with moderate muscle-building ability. Your body type is largely influenced by genetics, but training and nutrition can significantly modify your physique over time.
Ectomorph
Ectomorphs are characterized by a lean, long-limbed frame with narrow shoulders and hips. They tend to have a fast metabolism, which makes it easy to stay lean but difficult to gain weight or build significant muscle mass. Ectomorphs excel in endurance sports such as distance running, cycling, and swimming. For muscle building, ectomorphs should focus on heavy compound lifts (squats, deadlifts, bench press) with lower repetitions, minimize excessive cardio, consume a caloric surplus with emphasis on complex carbohydrates and protein, and allow adequate recovery time between workouts.
Mesomorph
Mesomorphs have a naturally athletic build with broad shoulders, a narrow waist, and a medium-sized bone structure. They tend to gain muscle relatively easily and respond well to most types of training. Mesomorphs are often naturally suited for sports like football, gymnastics, wrestling, and bodybuilding. Training recommendations include a mix of compound and isolation exercises with moderate repetitions, a balanced approach to both strength training and cardiovascular exercise, and a well-rounded diet with balanced macronutrients. Mesomorphs should be mindful that they can gain body fat if they become sedentary.
Endomorph
Endomorphs are characterized by a wider, rounder physique with a larger bone structure and a tendency to store fat easily, particularly around the midsection. They often have a slower metabolism but can build significant strength and muscle mass. Endomorphs tend to excel in powerlifting, shot put, and contact sports. Training for endomorphs should include regular cardiovascular exercise combined with higher-repetition resistance training. Nutritionally, endomorphs benefit from a lower-carbohydrate diet with higher protein intake, portion control, and strategic meal timing (consuming most carbohydrates around workout times).
How Body Type Is Determined
Scoring Methodology:
This calculator assigns points to each body type (ectomorph, mesomorph, endomorph) based on your BMI, wrist-to-height ratio, body fat percentage, frame size, metabolism speed, weight change tendency, and muscle-building ease. The body type with the highest total score is your primary type.
Primary Type Match % = (Primary Type Score / Total Score) x 100
Worked Example
Given: Male, 175 cm, 68 kg, wrist 15.5 cm, body fat 12%, small frame, fast metabolism, hard to gain weight, hard to build muscle.
BMI: 68 / (1.75 x 1.75) = 22.2 (normal range: +1 ecto, +2 meso).
Wrist Ratio: 15.5 / 175 = 0.089 (below 0.095 for males: +2 ecto).
Body Fat: 12% (below average 15% - 5 = 10%? No, 12% is between 10% and 20%, so moderate: +2 meso.
Frame: Small (+2 ecto). Metabolism: Fast (+2 ecto). Weight change: Hard to gain (+2 ecto). Muscle: Hard (+1 ecto).
Scores: Ecto = 3+2+0+2+2+2+1 = 12, Meso = 2+0+2+0+0+0+0 = 4, Endo = 0+0+0+0+0+0+0 = 0.
Result: Primary type is Ectomorph with a 75% match (12/16). No close secondary type.
Body Type Characteristics Comparison
| Characteristic | Ectomorph | Mesomorph | Endomorph |
|---|---|---|---|
| Frame | Narrow, small-boned | Medium, athletic | Wide, large-boned |
| Metabolism | Fast | Moderate | Slow |
| Muscle Gain | Difficult | Easy | Moderate |
| Fat Storage | Low, stays lean | Moderate, balanced | High, gains easily |
| Ideal Cardio | Minimal (2-3x/week) | Moderate (3-4x/week) | Frequent (4-6x/week) |
| Strength Training | Heavy, low reps (6-8) | Mixed reps (6-12) | Higher reps (10-15) |
| Carb Intake | High (45-55%) | Moderate (40-45%) | Lower (25-35%) |
| Protein Intake | 25-30% | 30-35% | 35-40% |
| Best Sports | Distance running, cycling | Football, gymnastics | Powerlifting, wrestling |
Important Disclaimer
This body type calculator provides an approximate classification based on self-reported data and common body composition indicators. Somatotype classification is a simplified model and does not capture the full complexity of human body composition, genetics, or health. Most individuals are a blend of body types, and the results should be used as a general guide rather than a definitive assessment.
The exercise and nutrition recommendations provided are general guidelines and may not be appropriate for all individuals. Before starting any new exercise program or making significant dietary changes, consult a qualified healthcare provider, registered dietitian, or certified personal trainer who can assess your individual needs, health history, and fitness goals. This tool is for educational purposes only and is not a substitute for professional medical or fitness advice.