Calculyn

BMI Calculator

Calculate your body mass index and healthy weight range.

ft
in
lb

Results update as you type.

Your BMI

24.4

Healthy weight

Healthy weight from
129lb
Healthy weight to
174lb
Your BMI24.4

Health results are general estimates, not a diagnosis or a substitute for advice from a doctor or registered dietitian.

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How it works

BMI compares your weight to your height. It's a quick screening tool, not a diagnosis — it doesn't account for muscle mass.

Formula

BMI = 703 × weight (lb) ÷ height (in)²

Example

5′10″ and 170 lb gives a BMI of 24.4 — a healthy weight.

Assumptions & limitations

  • Based on population formulas that may not fit athletes, pregnancy, children or medical conditions.

Frequently asked questions

What is a healthy BMI?

18.5 to 24.9 is considered the healthy range for most adults.