FitScale – Free Fitness & Food Calculators

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What is FitScale?

FitScale is a free collection of precision fitness and nutrition calculators designed for athletes, bodybuilders, and health-conscious individuals. Whether you need to calculate your Body Mass Index (BMI), determine your daily protein intake, find your One-Rep Max (1RM), or convert raw food weight to cooked weight — FitScale provides instant, accurate results.

All tools are available in English and German (Deutsch) and work on any device — desktop, tablet, or mobile. No registration required, no ads blocking your results, and completely free to use.

Available Calculators

BMI Calculator – Calculate your Body Mass Index with WHO categories.
WHR Calculator – Determine your Waist-to-Hip Ratio for health risk assessment.
WtHR Calculator – Measure your Waist-to-Height Ratio.
Protein Calculator – Find your optimal daily protein intake based on weight and activity level.
Creatine Calculator – Calculate the ideal creatine dosage for loading and maintenance phases.
1RM Calculator – Estimate your One-Rep Max from submaximal lifts.
Multi-Rep Calculator – Derive training weights across different rep ranges.
Food Converter – Convert raw food weight to cooked weight with automatic nutrition recalculation.