22 calculators
Health & Fitness
BMI, BMR, TDEE, pace — estimates, not medical advice.
Body Composition4
- BMI CalculatorBody Mass Index from your height and weight.Open calculator
- Body Fat CalculatorBody fat % from a tape measure (US Navy method) or from BMI — with fat mass, lean mass and category.Open calculator
- Ideal Weight & Healthy Weight CalculatorYour healthy weight range for your height (WHO or Asian Indian BMI) and four classic ideal-weight formulas.Open calculator
- Lean Body Mass Calculator — Boer, James, Hume or Body-Fat %Lean body mass (everything except fat) from height and weight by the Boer, James or Hume formula — or from your body-fat percentage.Open calculator
Calories & Diet6
- BMR & TDEE CalculatorCalories you burn a day (BMR and TDEE) — and how much to eat to lose, keep or gain weight.Open calculator
- Ready-madeCalorie Calculator — Calories to Lose or Gain WeightHow many calories a day to lose (or gain) weight safely — and how long it will take.Open calculator
- Macro Calculator — Protein, Carbs & FatDaily grams of protein, carbohydrate and fat for your calories and diet style — per day and per meal.Open calculator
- Ready-madeProtein Calculator — How Much Protein Do You Need?Your daily protein in grams — by body weight or as a share of calories — and per meal.Open calculator
- Ready-madeCarbohydrate Calculator — Daily Carbs in GramsHow many grams of carbohydrate to eat a day for your calories and diet style.Open calculator
- Ready-madeFat Intake Calculator — Daily Fat in GramsHow many grams of fat to eat a day for your calories and diet style.Open calculator
Pregnancy5
- Pregnancy Due Date Calculator — Week by WeekYour due date from your last period, conception or IVF transfer — how far along you are and what's next.Open calculator
- Ready-madeConception Date Calculator — When Did I Conceive?Estimate when conception happened from a due date, birth date, last period or IVF transfer — with the likely fertile window.Open calculator
- Ovulation Calculator — Fertile Window and Next PeriodsYour likely ovulation day and six-day fertile window, plus your next periods and when to take a pregnancy test.Open calculator
- Ready-madePeriod Calculator — Next Period Dates and Cycle TrackerWhen your next period is due, the next six period dates, and where you are in your cycle today.Open calculator
- Pregnancy Weight Gain Calculator — Healthy Range by WeekHow much weight to gain in pregnancy for your pre-pregnancy BMI — the total, the range for this week, and how you're tracking.Open calculator
Fitness3
- Calories Burned Calculator — Walking, Running, Cycling, Yoga & MoreCalories burned by 40 activities — walking, running, cycling, swimming, yoga, cricket, housework — from the 2024 Compendium MET values.Open calculator
- One Rep Max (1RM) Calculator — 7 Formulas and Training LoadsEstimate your one-rep max from a weight and reps (Epley, Brzycki and 5 more), with training loads at each % of 1RM.Open calculator
- Target Heart Rate Calculator — Training Zones and Max Heart RateYour maximum heart rate and target zones for moderate and vigorous exercise — by % of max or the Karvonen (heart-rate reserve) method.Open calculator
Medical2
- Body Surface Area (BSA) Calculator — Mosteller, Du Bois & MoreBody surface area in m² from height and weight — Mosteller, Du Bois, Haycock and Gehan & George side by side.Open calculator
- eGFR Calculator — Kidney Function (CKD-EPI 2021)Estimated glomerular filtration rate from serum creatinine, age and sex with the race-free CKD-EPI 2021 equation, and the CKD stage.Open calculator