BMI analysis, daily calorie needs, hydration, training zones, and sleep cycle optimization.
9 tools available in this directory
Official WHO Body Mass Index calculator with metric and imperial weight categories.
Calculate daily maintenance calories, TDEE, and BMR via Mifflin-St Jeor formula.
Estimate body fat percentage and lean mass using the standardized US Navy method.
Compare healthy target weight ranges across Hamwi, Devine, Robinson, and Miller.
Determine daily protein gram targets based on body weight and muscle training goals.
Calculate optimal daily hydration in liters and glasses adjusted for workout intensity.
Calculate running pace per mile or km, split targets, and estimated race finishes.
Determine ideal bedtimes and waking hours based on natural 90-minute REM sleep cycles.
Calculate maximum heart rate and 5 targeted cardio zones using Karvonen formula.