Body Composition Calculators
This body composition calculator hub covers body fat, lean and fat-free mass, BMI for men and women, ideal weight, body proportions, and waist-to-height ratio.
Ideal Body Proportions Calculator
This ideal body proportions calculator gives classic golden-ratio targets — such as the shoulder-to-waist ratio —…
Open calculator Body CompositionFull Body Analysis Calculator
This body analysis calculator brings several health metrics together — BMI, estimated body fat, BMR, and…
Open calculator Body CompositionFat-Free Mass Index Calculator
This fat free mass index calculator finds your FFMI — muscle mass relative to height —…
Open calculator Body CompositionBody Adiposity Index Calculator
This body adiposity index calculator estimates body fat percentage from hip circumference and height, no weight…
Open calculator Body CompositionBMI Calculator for Men
This BMI calculator for men finds body mass index from height and weight and shows the…
Open calculator Body CompositionBMI Calculator for Women
This BMI calculator for women finds body mass index from height and weight, and shows where…
Open calculatorLean Body Mass Calculator
This lean body mass calculator estimates your fat-free mass — everything except body fat — from…
Open calculator Body CompositionWaist-to-Height Ratio Calculator
This waist to height ratio calculator finds your WHtR, a simple indicator of central obesity risk.…
Open calculator Body CompositionIdeal Weight Calculator
This ideal weight calculator estimates a reference healthy weight from your height and sex using the…
Open calculator Body CompositionBody Fat Calculator
This body fat calculator estimates your body fat percentage using the US Navy circumference (tape) method,…
Open calculatorAbout Body Composition Calculators
This body composition calculator hub covers body fat, lean and fat-free mass, BMI for men and women, ideal weight, body proportions, and waist-to-height ratio. Pick a tool below for an instant estimate with the formula.
These tools turn your measurements into body-composition estimates using established formulas. Results are for general guidance and education only, not a medical diagnosis.
Calculators in this category
- Body Fat Calculator
- Lean Body Mass Calculator
- Fat-Free Mass Index Calculator
- Body Adiposity Index Calculator
- Ideal Weight Calculator
- Ideal Body Proportions Calculator
- BMI Calculator for Men
- BMI Calculator for Women
- Waist-to-Height Ratio Calculator
- Full Body Analysis Calculator
Frequently Asked Questions
What can I estimate with these body tools?
Body-fat percentage, lean and fat-free mass, BMI, ideal weight, body proportions, and waist-to-height ratio. Each tool covers one task with its formula.
Are these tools free to use?
Yes. Every calculator on this page is free, needs no signup, and works in your browser on mobile and desktop.
Are the body composition estimates accurate?
They use recognized formulas such as the Navy body-fat method, but results are estimates for guidance only and do not replace a professional assessment.