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Health & Fitness Calculators

Find health and fitness calculators for body measurements, nutrition, hydration, activity and other general wellness questions. Each tool uses the details you enter to produce an estimate or reference value.

117 calculators and toolsBrowse topics

Browse health & fitness calculator topics

Choose a topic to see its calculators and find the right tool for your calculation.

BMI Calculators8 calculators Body Measurements21 calculators Dietary39 calculators Diabetes12 calculators Metabolic Disorders9 calculators Army7 calculators Sleep6 calculators Fitness & Exercise7 calculators Pregnancy & Pediatric8 calculators

How to use these health & fitness calculators

Choose the relevant health topic and enter measurements in the units shown. Use results as general information and ask a qualified health professional about personal medical decisions.

These calculators do not diagnose, prevent or treat medical conditions.