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Free Health & Fitness Calculators

Calculate calories, macros, BMI, pregnancy due dates, and ovulation. Free health tools using medical-standard formulas.

5 tools available, all free, no sign-up required.

Calorie Calculator

Calculate your TDEE and daily calorie needs. Get personalized targets for weight loss, maintenance, or gain. Uses Mifflin-St Jeor and Harris-Benedict formulas.

CalculatorHealth

Pregnancy Calculator

Calculate due date from last period or conception date. Track fetal development week by week with milestones.

CalculatorHealth

Macro Calculator

Calculate daily macros (protein, carbs, fat) based on TDEE and fitness goal. Supports cutting, bulking, maintenance with keto and low-carb presets.

CalculatorHealth

BMI Calculator

Calculate BMI in metric or imperial units. Get ideal weight range and health risk assessment based on BMI categories.

CalculatorHealth

Ovulation Calculator

Calculate ovulation date and fertile window from last period. Track best days to conceive for pregnancy.

CalculatorHealth

Frequently Asked Questions

Are these Health & Fitness tools free to use?▾
Yes, all 5 tools in this category are completely free. No sign-up, no account, and no payment required. Every tool works instantly in your browser.
Do these tools work on mobile phones?▾
Yes. All tools are mobile-responsive and work on iOS, Android, and desktop browsers. Touch events are supported where applicable.
Is my data sent to a server?▾
Most tools run entirely in your browser, no data is transmitted. Tools that fetch live data (price charts, currency rates) only request public market data. No personal data is ever sent to any server.
How many Health & Fitness tools are available?▾
There are 5 tools in this category. All are free and require no sign-up. Browse the list above to find the tool you need.