Fitness Calculators Suite
All your fitness calculation needs in one place – by IT Free Tools
Fitness Calculators
BMI Calculator
Enter height and weight
Body Fat %
Male
Female
Enter your details
Lean Body Mass
Male
Female
Enter your details
One-Rep Max
Enter weight and reps
VO2 Max
Enter your details
Running Pace
Enter distance and time
Heart Rate
Enter age and resting HR
Calorie Burn
Enter activity details
Nutrition Calculators
Protein Intake
Enter your details
Macro Calculator
Enter calorie target
Calorie Needs
Male
Female
Enter your details
BMR Calculator
Male
Female
Enter your details
Keto Macros
Enter calorie target
Hydration
Enter your details
Fasting Schedule
Select fasting method
Pregnancy Weight
Enter your details
Health Calculators
Ideal Weight
Male
Female
Enter height
Waist-to-Hip
Enter measurements
Waist-to-Height
Enter measurements
Body Surface Area
Enter height and weight
Blood Alcohol
Male
Female
Enter your details
Kidney GFR
Male
Female
Enter your details
Health Risk
Enter your details
Water Intake
Enter your details
How to Use These Calculators
- Select the category using the tabs at the top
- Fill in the required fields (marked with *)
- Click the “Calculate” button to see your results
- Results will appear in the colored box below each calculator
All calculations are estimates. Consult a professional for personalized advice.