Evidence-based body metrics

Know Your Body.
Transform Your Health.

Understand your body with scientifically accepted calculations including BMI, Body Fat Percentage, BMR, TDEE, Daily Calories, Healthy Weight Range, Water Intake, Protein Needs, and Progress Tracking.

Start Free Learn More

Works offline. No account, no tracking.

BMI

22.4

Body Fat

16.8%

Calories

2,540

Protein

128 g

Water

3.1 L

Weight

75.0 kg

Built to be trusted, fast, and private

Trusted Calculations

Published, peer-reviewed formulas

100% Free

Every metric, no paywall

Privacy First

Nothing leaves your browser

No Login Required

Start measuring immediately

Instant Results

Recalculated as you type

Mobile Friendly

Works offline on any device

Two minutes to a complete picture

Answer four short steps — personal details, body, measurements, and lifestyle — and get a full dashboard of thirteen health metrics with plain-language explanations.

Open the calculator