Health
BMI, BMR, TDEE, and health-related calculators
Calculators
BMI Calculator
Calculate your Body Mass Index and see your weight category.
Open Calculator →Calorie Calculator
Calorie and TDEE calculator. Find your Total Daily Energy Expenditure and BMR with Mifflin-St Jeor and Harris-Benedict equations, plus macronutrient breakdown for your caloric goals.
Open Calculator →Pace Calculator
Calculate running pace, time, or distance. Enter any two values to find the third, with split times for your run.
Open Calculator →Pregnancy Calculator
Pregnancy and due date calculator. Estimate your due date from last menstrual period or conception date, with week-by-week pregnancy timeline.
Open Calculator →Heart Rate Zones Calculator
Calculate your five heart rate training zones using standard (220 minus age) or Karvonen (heart rate reserve) methods.
Open Calculator →One Rep Max (1RM) Calculator
Estimate your one-rep max from submaximal lifts using Epley, Brzycki, Lombardi, Mayhew, and Wathan formulas. Includes training load percentage chart.
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