💪 Free Health & Fitness Calculators

Free health and fitness calculators that run in your browser: daily calories (TDEE), BMI, body fat, ideal weight and one-rep max. Metric or imperial, no signup.

✔ 5 free tools✔ No signup✔ No watermark✔ In your browser

A set of free MakeToolz calculators for health and fitness, all running in your browser with instant results and metric or imperial units. Work out your daily calorie needs, body mass index, body fat percentage, ideal weight range and one-rep max. Every tool is free, needs no signup, and keeps your numbers private on your device. These are general estimates for planning, not medical advice.

Diet & Weight (3)

Calories, BMI and a healthy weight range.

🍎 Calorie CalculatorFind your daily calories, BMR and TDEE with goal targets. ⚖️ BMI CalculatorWork out your body mass index in metric or imperial units. ⚖️ Ideal Weight CalculatorFind your ideal weight and healthy range for your height.

Body & Strength (2)

Body fat percentage and one-rep max.

📊 Body Fat CalculatorEstimate body fat % with the US Navy tape method. 🏋️ One Rep Max CalculatorEstimate your 1RM and see a full training percentage table.

Frequently Asked Questions

Are these health and fitness calculators free?
Yes. Every calculator is free with no signup and no limits, and they all run in your browser.
Are they medical advice?
No. They give general estimates for fitness and planning only. Talk to a doctor or dietitian before making health decisions.
Do they work in metric and imperial?
Yes. You can switch between metric (cm, kg) and imperial (in, lb) on each calculator.
Is my health data kept private?
Yes. Everything is calculated locally in your browser, so nothing you enter is uploaded or stored.

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