Fitness & Health Calculators
28 calculatorsTrack your health metrics, plan your fitness journey, and understand your body with evidence-based calculators.
28 calculators available
Body Metrics(9)↑ top
Army Body Fat Calculator
Calculate your body fat percentage using the U.S. Army stand…
BMI Calculator
Calculate your Body Mass Index (BMI) using height and weight…
Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method…
Body Surface Area Calculator
Calculate body surface area (BSA) using validated formulas l…
Body Type Calculator
Estimate your body type based on measurements. Uses the McDo…
Healthy Weight Calculator
Calculate your healthy weight range using BMI-based guidelin…
Ideal Weight Calculator
Calculate your ideal body weight using multiple formulas (Ha…
Lean Body Mass Calculator
Estimate lean body mass (LBM) using Boer, James, and Hume fo…
Pregnancy Weight Gain Calculator
Calculate recommended weight gain during pregnancy based on …
Health(2)↑ top
Fitness(5)↑ top
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) using Mifflin-St J…
One Rep Max Calculator
Calculate your one-repetition maximum (1RM) for strength tra…
Pace Calculator
Calculate running pace, time, and distance. Enter any two va…
Target Heart Rate Calculator
Calculate your target heart rate zones for optimal exercise …
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) using B…
Nutrition(6)↑ top
Calorie Calculator
Calculate your daily calorie needs using scientifically-vali…
Calories Burned Calculator
Estimate calories burned during various physical activities …
Carbohydrate Calculator
Estimate your daily carbohydrate needs based on weight, acti…
Fat Intake Calculator
Estimate your daily fat intake needs based on weight and act…
Macro Calculator
Calculate your daily macronutrient needs (carbs, protein, fa…
Protein Calculator
Calculate your daily protein needs based on body weight, act…
Pregnancy(6)↑ top
Conception Calculator
Estimate your ovulation date and fertile window based on you…
Due Date Calculator
Estimate your pregnancy due date based on your last menstrua…
Ovulation Calculator
Estimate your ovulation date and fertile window to maximize …
Period Calculator
Predict your next period date and track your menstrual cycle…
Pregnancy Calculator
Track your pregnancy week by week based on your due date. Se…
Pregnancy Conception Calculator
Calculate your most likely conception date based on due date…
Frequently Asked Questions
- What is a healthy BMI range?
- A BMI between 18.5 and 24.9 is considered healthy for most adults. Below 18.5 is underweight, 25-29.9 is overweight, and 30 or above is obese. However, BMI has limitations and should be considered alongside other health metrics.
- How many calories should I eat per day?
- Daily calorie needs vary based on age, gender, weight, height, and activity level. Use our calorie calculator to estimate your Total Daily Energy Expenditure (TDEE) and adjust based on your weight goals.
- What is the difference between BMR and TDEE?
- BMR (Basal Metabolic Rate) is the calories your body burns at complete rest. TDEE (Total Daily Energy Expenditure) is your BMR plus calories burned through activity and digestion. TDEE is what you should use for weight management planning.