Health & Fitness Calculators

27 free calculators across body composition, nutrition, fitness & training, pregnancy & women's health, and more. No signup. Just results.

27 Calculators

5 Categories

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Body Composition

6 tools

⚖️ BMI Calculator Calculate body mass index and find your weight category Open Calculator → 💪 Body Fat Percentage Calculator Estimate body fat percentage using the US Navy method Open Calculator → 🎽 Ideal Weight Calculator Find your ideal body weight using multiple proven formulas Open Calculator → 📏 Waist-to-Hip Ratio Calculator Assess health risk from your waist and hip measurements Open Calculator → 🏋️ Lean Body Mass Calculator Estimate your lean mass and fat mass from weight and height Open Calculator → 🔥 BMR (Basal Metabolic Rate) Calculator Find your basal metabolic rate and daily calorie needs Open Calculator →

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Nutrition

7 tools

🥗 Calorie Calculator Get personalized daily calorie recommendations for your goal Open Calculator → 🍱 Macro Calculator Split your daily calories into protein, carb and fat targets Open Calculator → 🔥 TDEE Calculator Find your total daily energy expenditure across every goal Open Calculator → 💧 Water Intake Calculator Calculate your optimal daily water intake based on weight Open Calculator → 🥩 Protein Intake Calculator Find your daily protein target based on weight and goal Open Calculator → 🍽️ Meal Calorie Calculator Log meals from 1500+ foods and track daily calories & macros Open Calculator → 🏃‍♂️ Calories Burned Calculator Estimate calories burned by activity, weight and duration Open Calculator →

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Fitness & Training

7 tools

🏋️‍♂️ One Rep Max (1RM) Calculator Estimate your one-rep max and training percentage chart Open Calculator → 🏃 Pace Calculator Calculate running pace, time or distance with splits Open Calculator → 🫁 VO2 Max Calculator Estimate cardiovascular fitness with the Cooper 12-min test Open Calculator → ❤️ Target Heart Rate Calculator Find your training heart rate zones using the Karvonen method Open Calculator → 👣 Steps to Calories Calculator Convert your daily step count into calories burned Open Calculator → 🔄 Body Recomposition Calculator Project your target weight and fat loss for a body fat goal Open Calculator → 🎂 Fitness Age Calculator See how your lifestyle compares to your chronological age Open Calculator →

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Pregnancy & Women's Health

4 tools

🤰 Pregnancy Due Date Calculator Estimate your due date, gestational age, and trimester timeline Open Calculator → 🌸 Ovulation Calculator Predict ovulation day, fertile window and next period Open Calculator → 📈 Pregnancy Weight Gain Calculator Track recommended weight gain by week against IOM guidelines Open Calculator → 📅 Conception Date Calculator Estimate your conception date from due date or last period Open Calculator →

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Other

3 tools

😴 Sleep Calculator Find the best bedtime or wake time based on sleep cycles Open Calculator → 👶 Baby Weight/Height Calculator Compare your baby's weight and height to age-matched averages Open Calculator → 👗 Body Type Calculator Find your body shape from bust, waist and hip measurements Open Calculator →