Fitness & Health Calculators
38 calculatorsTrack your health metrics, plan your fitness journey, and understand your body with evidence-based calculators.
38 calculators available
Body Metrics(9)↑ top
Army Body Fat Calculator
Calculate your body fat percentage using official U.S. Army …
BMI Calculator
Calculate your Body Mass Index (BMI) for women and men with …
Body Fat Calculator
Easily estimate your body fat percentage using the U.S. Navy…
Body Surface Area Calculator
Calculate your body surface area (BSA) using validated Du Bo…
Body Type Calculator
Discover your body type from waist, hip and height measureme…
Healthy Weight Calculator
Calculate your healthy weight range using BMI-based guidelin…
Ideal Weight Calculator
Calculate your ideal body weight using Hamwi, Devine, Robins…
Lean Body Mass Calculator
Estimate lean body mass (LBM) using the Boer, James, and Hum…
Pregnancy Weight Gain Calculator
Calculate recommended pregnancy weight gain based on your pr…
Health(6)↑ top
BAC Calculator
Estimate your Blood Alcohol Concentration (BAC) with the Wid…
Corrected Calcium Calculator
Calculate albumin-corrected calcium from total calcium and s…
Creatinine Clearance Calculator
Calculate creatinine clearance with the Cockcroft-Gault form…
GFR Calculator
Estimate your Glomerular Filtration Rate (GFR) using the CKD…
Morphine Milligram Equivalents Calculator
Calculate total daily morphine milligram equivalents (MME) f…
QTc Calculator
Calculate corrected QT interval (QTc) using Bazett, Frideric…
Fitness(6)↑ top
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) with Mifflin-St Je…
One Rep Max Calculator
Calculate your one-repetition maximum (1RM) for strength tra…
Pace Calculator
Calculate running pace, time, or distance from any two value…
Step Counter Calculator
Convert steps to distance and calories burned, and estimate …
Target Heart Rate Calculator
Find your target heart rate zones for exercise using the Kar…
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) from BM…
Nutrition(11)↑ top
Caffeine Content Calculator
How much caffeine is in your coffee, tea, or energy drink? A…
Caffeine Half-Life Calculator
See how long caffeine stays in your system. Enter your dose …
Calorie Calculator
Calculate your daily calorie needs for maintenance, weight l…
Calories Burned Calculator
Estimate calories burned across 20+ physical activities usin…
Carbohydrate Calculator
Estimate your daily carbohydrate needs based on weight, acti…
Daily Sugar Intake Calculator
Track your daily sugar intake and compare it against WHO and…
Fat Intake Calculator
Find your daily fat intake goal from weight and activity lev…
Intermittent Fasting Calculator
Plan your intermittent fasting schedule with 16:8 and other …
Macro Calculator
Calculate your daily macronutrient targets for carbs, protei…
Protein Calculator
Calculate your daily protein needs based on body weight, act…
Sugar in Food Calculator
Check sugar content in 65+ fruits, drinks, snacks, and foods…
Pregnancy(6)↑ top
Conception Calculator
Estimate your ovulation date and fertile window from your la…
Due Date Calculator
Estimate your pregnancy due date using Naegele's rule from y…
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 from your due date. See tr…
Pregnancy Conception Calculator
Estimate your most likely conception date from your due date…
Frequently Asked Questions
- âť“ What is a healthy BMI range?
- âś… 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.
- âť“ How many calories should I eat per day?
- âś… 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.
- âť“ What is the difference between BMR and TDEE?
- âś… 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.