Health Tools
Free online health calculators for BMI, daily water intake, calories burned, BMR, pregnancy tracking, and period cycle prediction
Age Calculator
Calculate your exact age in years, months, days, hours, and minutes. Find the difference between any two dates.
BMI Calculator
Calculate your Body Mass Index using metric or imperial units. See your BMI category, healthy weight range, and classification table.
BMR Calculator
Calculate your Basal Metabolic Rate and Total Daily Energy Expenditure (TDEE). Supports Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas.
Ideal Body Weight
Find your ideal weight range using the Hamwi, Devine, Robinson, and Miller formulas. Includes BMI healthy weight range.
Calories Burned
Calculate calories burned during 40+ exercises using MET values. Choose from walking, cycling, swimming, gym, sports, and daily activities.
Steps to Calories
Convert steps walked or run into calories burned. Enter your step count, body weight, and pace for a personalised estimate.
Calorie Intake Calculator
Calculate your TDEE and daily calorie target for weight loss, maintenance, or muscle gain using the Mifflin-St Jeor formula.
Water Intake Calculator
Find out exactly how much water to drink daily based on your weight, activity level, climate, and whether you are pregnant or breastfeeding.
Sleep Calculator
Find the best bedtimes or wake-up times based on 90-minute sleep cycles to wake up feeling refreshed and alert.
Macro Calculator
Calculate your daily protein, carbohydrate, and fat targets based on your calorie goal, body weight, and fitness goal.
Body Fat Calculator
Estimate your body fat percentage using the US Navy tape-measurement method and the BMI method. Get fat mass and lean mass.
Height Converter
Convert height between centimetres and feet/inches. Includes a full reference chart and average height comparisons by country.
Period Calculator
Predict your next periods, ovulation date, and fertile window up to 12 months ahead based on your last period date and average cycle length.
Pregnancy Due Date
Calculate your pregnancy due date using LMP or conception date. Get trimester breakdown, milestone dates, and weeks pregnant.
Free Online Health Calculators
Our free health tools help you track and understand key health metrics. Calculate your BMI, find out how much water you need daily, estimate calories burned during exercise, determine your BMR and TDEE for weight management, track your pregnancy due date, and predict your menstrual cycle and ovulation dates — all for free, with no sign-up required.
