Body Metrics & Nutrition
Track body composition and nutrition with private health calculators — BMI, body fat, calories/TDEE, keto macros, hydration and running pace. Use BMI and Body Fat for composition, Calorie/TDEE and Keto for nutrition targets, and Water Intake and Pace for daily and training goals.
6 free tools — no downloads, no sign-up.
BMI Calculator
Check your Body Mass Index instantly with WHO classification. Metric & imperial units, privacy-first.
Body Fat Calculator
US Navy body fat % formula. Gender-specific, fitness assessment.
Calorie & TDEE Calculator
Daily calorie needs, TDEE, macros. BMR calculation.
Keto & Macro Calculator
Calculate keto macros. BMR, TDEE, doughnut chart.
Pace & Running Calculator
Running pace, time, distance. 5K, 10K, marathon splits.
Water Intake Calculator
Daily water needs based on weight, activity, climate.
Frequently asked questions
Are these a substitute for medical advice?
No. These tools give general estimates and are not a replacement for professional medical guidance.
Is my health data stored?
No. Calculations run locally and nothing is saved or transmitted.
How is TDEE calculated?
From your stats and activity level using established energy-expenditure formulas.