Health & Fitness Calculators Guide
Understanding your health metrics is the first step to improving them. Use these calculators to track your BMI, plan your nutrition, optimize your workout intensity, and monitor your fitness progress over time.
120+ calculators in this guide
Health & Fitness
See all →BMI, calories, heart rate and health tools. Based on sports science. Instant result with training zone chart and performance guide.
BMI Calculator
Body Mass Index for adults. Based on WHO and clinical guidelines. Instant result with heal
BMI Calculator for Women
BMI optimized for adult females. Based on WHO and clinical guidelines. Instant result with
Body Fat Calculator
Calculate body fat percentage using the US Navy method. Based on WHO and clinical guidelin
BMR Calculator
Basal Metabolic Rate and daily calorie needs. Based on WHO and clinical guidelines. Instan
Calories Burned Calculator
Calculate calories burned during exercise using MET values. Enter activity, duration, and
Protein Calculator
Calculate daily protein intake based on weight, activity, and goal. Enter your metrics — s
Ideal Weight Calculator
Ideal weight using 4 medical formulas (Robinson, Miller, Devine, Hamwi). Based on WHO and
Pace Calculator
Calculate running pace, finish time, or distance for any race. Enter two of three values —
Target Heart Rate
Exercise heart rate training zones. Based on WHO and clinical guidelines. Instant result w
Pregnancy Calculator
Due date, trimester and weekly pregnancy tracker. Based on clinical and medical guidelines
Conception Calculator
Estimate conception date from due date or last period. Enter your dates — see likely conce
Gestation Calculator
Calculate animal gestation period and expected due date. Enter species and conception date
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