Fitness calculator

Body Fat Calculator

Estimate body fat percentage using a BMI-based formula with age and gender inputs.

How to use this calculator

  • This calculator uses a BMI-based body fat estimation formula.
  • It gives a practical estimate, not a medical diagnosis or DEXA-equivalent result.
  • Use it as a general progress reference together with measurements and photos.

Enter your details

Results

Enter valid values to see your calculation result.