BMI, calories, sleep cycles, and fitness calculators
Calculate your Body Mass Index (BMI) and Basal Metabolic Rate (BMR) with health insights
Estimate daily calorie needs and macronutrient distribution for your fitness goals
Calculate body fat percentage using the US Navy method — metric and imperial, with fat mass and lean mass breakdown
Find the best time to wake up or go to sleep based on 90-minute sleep cycles to wake up refreshed
Calculate your pregnancy due date, current week, and trimester based on last menstrual period or conception date
Calculate your daily water intake needs based on weight, activity level, and climate
Calculate your max heart rate and 5 training zones by age — fat burn, cardio, and peak zones with target BPM ranges