Free Health & Fitness Calculators

Scientifically proven tools to help you reach your weight loss and muscle gain goals with precision.

Precision Health Tools

You can't manage what you don't measure. Before starting any diet, you need to know your baseline numbers: your BMR (Basal Metabolic Rate) and your TDEE (Total Daily Energy Expenditure). Our calculators use the latest specific formulas.

Frequently Asked Questions

Are these health calculators accurate?
Yes. We use scientifically validated formulas like the Mifflin-St Jeor equation for calories and WHO standards for BMI. However, please remember these are estimates and not a substitute for professional medical advice.
Do I need to sign up to use these tools?
No. All CalMind calculators are 100% free, instantly accessible, and require no registration or email.
Do you save my health data?
Absolutely not. All calculations happen locally in your browser. Your weight, age, and height data are private and are never sent to our servers.

Your Pocket Health Coach

Take your results to the next level. Download CalMind to scan meals, track macros, and reach your goals faster.

Snap a photo. See calories & macros.

Start with one photo. CalMind instantly shows calories and macros—so staying consistent feels easy.