Wellness tools
Know your
numbers.
Quick, free calculators for the everyday numbers behind your health. Nothing you enter leaves your device.
8 free tools · No account neededBody
BMI calculator
Your BMI, what it means and the healthy weight range for your height.
Open tool 02Nutrition
Calorie & macro planner
How many calories you burn a day, and a protein, carb and fat split for your goal.
Open tool 03Hydration
Water intake calculator
A daily water target from your weight, activity and climate, in litres and glasses.
Open tool 04Sleep
Sleep cycle calculator
The best times to fall asleep or wake up, timed to 90-minute sleep cycles.
Open tool 05Fitness
Heart rate zones
Your maximum heart rate and five training zones, from easy recovery to all-out effort.
Open tool 06Women's health
Period & ovulation calculator
Your next periods, ovulation day and fertile window from the date of your last period.
Open tool 07Women's health
Pregnancy due date calculator
Your estimated due date, how far along you are and the milestones still to come.
Open tool 08Women's health
Pregnancy weight gain
How much weight to gain during pregnancy for your starting BMI, and where you should be this week.
Open toolThese tools give general estimates for healthy adults. They are not a diagnosis and do not replace advice from a doctor.