Health & Fitness Calculators
Everyday health and fitness math — BMI, calories, body composition, and pregnancy timelines — using standard, well-established formulas.
BMI Calculator
Body Mass Index and weight category, imperial or metric.
BMR & TDEE Calculator
Daily calorie needs based on BMR and activity level.
Body Fat Percentage Calculator
Estimate body fat % from simple body measurements.
Macro Calculator
Daily protein, carb & fat targets based on your TDEE and goal.
Pregnancy Due Date Calculator
Estimate your due date from your last menstrual period.