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BMI, body fat, fitness calculators and health tools — 6 free tools, all processing client-side for maximum privacy. No sign-up, no limits, no data collection.
Estimate body fat percentage using Navy method. Enter measurements for accurate results.
Calculate your ideal weight based on height, age, and gender using multiple formulas.
Calculate daily macronutrient needs (protein, carbs, fat) based on your fitness goals.
Calculate target heart rate zones for optimal cardio training.
Calculate estimated due date and pregnancy milestones from last period or conception date.
Calculate running pace, time, or distance for marathons and training.