Whether you're tracking calories, planning a pregnancy, or training for a race, these 12 calculators use the same formulas trusted by dietitians and trainers. Pair the BMI Calculator with the Calorie Calculator for a quick health snapshot, or check the Math & Science hub for related statistics tools.
Calculate your Body Mass Index and what it means for your health.
Calorie CalculatorEstimate your daily calorie needs based on age, weight, and activity level.
Due Date CalculatorEstimate your pregnancy due date and track key milestones by week.
TDEE CalculatorCalculate your Total Daily Energy Expenditure based on activity level.
Body Fat CalculatorEstimate your body fat percentage using standard measurement methods.
Period CalculatorTrack your menstrual cycle and predict upcoming period dates.
BMR CalculatorCalculate your Basal Metabolic Rate, the calories your body burns at rest.
Macro CalculatorCalculate daily protein, carb, and fat targets based on your goals.
Ideal Weight CalculatorEstimate a healthy target weight range based on your height and frame.
Pace CalculatorCalculate running or walking pace, time, or distance for any workout.
Calories Burned CalculatorEstimate calories burned during exercise based on activity and duration.
Weight Trend CalculatorTrack your weight over time and smooth out day-to-day fluctuations.
Related Categories
Other tools people use alongside health and fitness calculators.