33 free calculators
Fitness & Health Calculators
Use these fitness and health calculators for BMI, calories, macros, water intake, body measurements, running pace, target heart rate, pregnancy dates, and other wellness-related estimates. These calculators are helpful for planning, but medical decisions should be made with qualified professional guidance.
✓ Body Metrics and wellness estimates
✓ Running, pace, and heart-rate tools
✓ Nutrition, hydration, and daily goal calculators
Looking for a specific tool? Search the full Calculatorsville library.
Health Metrics
Estimate BMI, heart rate zones, body fat, and other wellness numbers.
Nutrition Goals
Calculate calories, macros, protein, water, and daily targets.
Training Tools
Plan running pace, marathon pace, steps, and workout numbers.
Featured Fitness & Health Calculators
Popular starting pointsAll Fitness & Health Calculators
33 calculators
Blood Volume Calculator
BMI Calculator
BMR Calculator
Body Fat Calculator
Body Surface Area Calculator
Calorie Calculator
Carbohydrate Calculator
Creatinine Clearance Calculator
Fat Intake Calculator
Fitness Planning Calculator
Heart Rate Calculator
Ideal Weight Calculator
IVF Due Date Calculator
Lean Body Mass Calculator
Macro Calculator
Marathon Pace Calculator
Max Heart Rate Calculator
Medicine Dosage Calculator
One Rep Max Calculator
Ovulation Calculator
Pace Calculator
Pregnancy Calculator
Pregnancy Due Date Calculator
Pregnancy Weight Gain Calculator
Protein Calculator
Running Pace Calculator
Sleep Calculator
Steps to Miles Calculator
Target Heart Rate Calculator
TDEE Calculator
Waist-to-Height Ratio Calculator
Waist-to-Hip Ratio Calculator
Water Intake Calculator
Popular Fitness & Health Calculators
Start with one of the most commonly used calculators in this category, or browse the full list above.