Fitness & Health Calculators
Explore 40+ expert-built tools across body composition, fitness, nutrition, pregnancy, and recovery — all in one place.
Body & Composition
BMI Calculator
Calculate your Body Mass Index and find your ideal weight range.
Body Fat Calculator
Estimate your body fat percentage using common formulas.
Ideal Weight Calculator
Find your healthy weight based on height and gender.
Ponderal Index Calculator
Compare your body shape relative to height for better insights.
Body Type Calculator
Determine your body somatotype: ectomorph, mesomorph, or endomorph.
Body Surface Area Calculator
Estimate your total body surface area used in medical analysis.
Fitness & Performance
BMR Calculator
Calculate your Basal Metabolic Rate — calories burned at rest.
TDEE Calculator
Find your Total Daily Energy Expenditure for maintaining or losing weight.
Pace Calculator
Calculate running or walking pace, speed, and distance easily.
One Rep Max Calculator
Estimate the maximum weight you can lift for one repetition.
Calories Burned Calculator
Estimate calories burned during different exercises and activities.
Max Heart Rate Calculator
Find your maximum safe heart rate during exercise.
Heart Rate Zones Calculator
Identify your cardio training and fat-burning heart rate zones.
VO₂ Max Calculator
Estimate your aerobic fitness level using VO₂ max formulas.
VO₂ Reserve Calculator
Calculate your VO₂ reserve for endurance training intensity.
Nutrition & Diet
Calorie Calculator
Determine your daily calorie needs to maintain or lose weight.
Macro Calculator
Balance your daily carbs, protein, and fats for your goals.
Protein Intake Calculator
Get personalized protein intake targets per day.
Fat Intake Calculator
Find how much healthy fat you should consume daily.
Carbohydrate Calculator
Determine ideal carb intake for weight control or performance.
Fiber Intake Calculator
Calculate the optimal amount of dietary fiber per day.
Glycemic Load Calculator
Estimate the blood sugar impact of your meals.
Pregnancy & Parenting
Pregnancy Calculator
Calculate your current week, trimester, and estimated due date.
Pregnancy Weight Gain Calculator
Track healthy pregnancy weight gain by trimester.
Due Date Calculator
Estimate your baby's due date using LMP or conception date.
Ovulation Calculator
Predict your ovulation and most fertile days.
Conception Calculator
Estimate conception dates based on due date or cycle length.
Period Calculator
Track your menstrual cycle, fertile window, and PMS dates.
Health & Recovery
Sleep Debt Calculator
Track sleep loss and recovery based on your ideal sleep time.
Sleep Time Calculator
Find the best time to sleep and wake up feeling refreshed.
Sleep Quality Index
Assess how well you’re resting and recovering.
GFR Calculator
Estimate kidney function using creatinine, age, and gender.
Metabolic Age Calculator
Compare your metabolism to your biological age.
Hydration & Lifestyle
Water Intake Calculator
Determine your ideal daily hydration based on weight and activity.
BAC Calculator
Estimate your Blood Alcohol Concentration safely and legally.
Waist-to-Hip Ratio Calculator
Assess your health risk by waist-to-hip ratio measurement.