Health Tools & Calculators

monitor_weight BMI Calculator Calculate your Body Mass Index from height and weight and see which WHO category it falls into. Calculatechevron_right local_fire_department Daily Calorie Calculator Calculate your BMR and daily calorie needs (TDEE) with the Mifflin-St Jeor equation, plus targets for losing or gaining weight. Calculatechevron_right fitness_center Ideal Weight Calculator Calculate your ideal weight from height and sex using the Devine formula and the WHO healthy BMI range. Calculatechevron_right pregnant_woman Pregnancy Due Date Calculator Calculate your estimated due date, current pregnancy week and trimester from the first day of your last period. Calculatechevron_right water_drop Daily Water Intake Calculator Calculate how much water you should drink per day based on your weight and exercise, in litres and glasses. Calculatechevron_right calendar_month Period & Ovulation Calculator Calculate your ovulation day, fertile window and next six periods from your last period and cycle length. Calculatechevron_right accessibility_new Waist-Hip Ratio Calculator Calculate your waist-to-hip ratio and compare it with WHO risk thresholds — a fat-distribution measure BMI misses. Calculatechevron_right air Air Quality Checker (US AQI) Check the current US AQI, PM2.5, PM10 and ozone for your location — via browser geolocation or manual coordinates, no sign-up. Checkchevron_right lunch_dining Macro Calculator Split your daily calories into protein, carbs and fat grams — balanced, low-carb or high-protein presets. Calculatechevron_right monitor_heart Blood Pressure Category Checker Enter systolic and diastolic readings to see your blood pressure category per the AHA classification. Checkchevron_right directions_run Running Pace Calculator Pace per mile and km, speed, and Riegel race predictions for 5K through marathon — from any distance and finish time. Calculatechevron_right accessibility_new Body Fat Calculator (US Navy Method) Estimate body fat percentage from neck, waist (and hip) circumferences with the US Navy formula — plus your fitness category. Calculatechevron_right bedtime Sleep Cycle Calculator The best times to fall asleep or wake up, aligned to 90-minute sleep cycles — wake between cycles, not inside one. Calculatechevron_right