Calculators provide estimates
Fitness calculators use formulas and the information you enter to produce estimates. They are useful for planning and education, but they cannot capture every individual factor.
Use consistent inputs
Accurate measurements and consistent units can make results more useful when comparing estimates over time.
Combine tools with real-world feedback
Use calculator results alongside changes in performance, body measurements, habits and other relevant information. Avoid making major health decisions based on a calculator alone.