Health

Body composition, fitness, and wellness calculators for everyday health tracking.

Body Fat Calculator

Estimate body fat percentage using the U.S. Navy method.

Estimate daily calorie needs and macro targets based on your activity and goal.

Calculate your Body Mass Index to see if you are underweight, normal weight, overweight, or obese.

Estimate your ideal body weight using the Devine, Robinson, and Miller formulas based on height and gender.

Break down your daily calorie goal into protein, carb, and fat gram targets for your diet approach.

Find out how much water to drink daily based on your body weight, climate, and exercise level.

Map your five cardio training zones using the Karvonen formula based on age and resting heart rate.

Calculate your required pace to hit a finish time, or project your finish time from a known pace — for 5K through marathon.

Calculate your Basal Metabolic Rate using Mifflin-St Jeor and Harris-Benedict equations, plus a full TDEE activity table.

Estimate your baby's due date, gestational age, and key pregnancy milestones from your last menstrual period.