Health & Fitness

BMI Calculator Calculate your Body Mass Index from weight and height, with the WHO bands and the healthy weight range for your height. BMR & Daily Calories Calculator Estimate your basal metabolic rate and daily calorie needs with Mifflin-St Jeor or Harris-Benedict, right in your browser. Daily Water Intake Calculator Estimate how much water to drink per day from your weight, exercise and heat — calculated in your browser. Heart Rate Zones Calculator Find your estimated maximum heart rate and the five training zones in bpm — calculated in your browser. Running Pace Calculator Convert distance, time and pace, get your speed and see predicted race times — all in your browser. Ideal Weight Calculator Compare four classic ideal-weight formulas with the healthy BMI range for your height, in your browser. Macro Calculator Split your daily calories into protein, carbs and fat — grams and percentages, in your browser. One-Rep Max Calculator Estimate your 1RM from any set with Epley and Brzycki, plus a percentage table to plan the session. Clothing Size Converter Type your body measurements and see the corresponding clothing size in BR, EU, US and UK — with the full chart on screen. Ring Size Converter Measure your finger circumference and see the corresponding ring size in BR (aro), ISO, US and UK — based on NBR 16058. Bra Size Converter Type your underbust and bust measurements and see the corresponding bra size in BR, EU, US and UK — with band and cup charts on screen. Calorie Burn Calculator by Activity Pick an activity, enter your weight and how long it lasted, and see the calorie burn worked out from the MET table — with the MET on screen and editable. Lab Test Unit Converter Convert blood test results between conventional and SI units — the factor comes from the molar mass and never goes out of date. Child Growth Percentile Calculator Plot a child's weight, height and head circumference against the WHO growth curves and see where they land — percentile and z-score, from birth to 19 years. Gestational Age Calculator Type the date of your last period or the conception date and see the gestational age in weeks, the estimated due date and weekly milestones. Breastfeeding Log Track feedings by side, time and duration — see today's total and your recent history, stored locally on your device. Sleep Cycle Calculator Find the best times to go to sleep or wake up based on 90-minute sleep cycles. Jet Lag Calculator Estimate how many days your body needs to adjust after crossing time zones. Corrected Age Calculator for Premature Babies Calculate the corrected age of a premature baby — the age adjusted for weeks born early. Hydrogen Peroxide Dilution Calculator Dilute hydrogen peroxide from one volume concentration to another — common in Brazilian pharmacy and beauty use.