Health

Activity Calories Calculator

Calculate energy burned during exercise or daily steps using standard MET values, your weight, and duration — or convert…

BMI Calculator

Calculate your Body Mass Index (BMI) instantly. Enter your weight and height to see where you fall on the WHO weight cat…

Body Fat Calculator

Estimate your body fat using neck and waist measurements.…

Calorie Calculator

Estimate how many calories you need per day based on age, weight, height, and activity.…

Calorie Deficit Calculator

Estimate how long weight loss takes at a given daily calorie deficit — or how large a deficit you need to reach a goal b…

Heart Rate Zones Calculator

Enter your age (and optional resting heart rate) to see max HR and five standard training zones — from recovery to VO₂ m…

Ideal Weight Calculator

Enter your height to see the weight range that corresponds to a healthy adult BMI (18.5–24.9). This is a screening guide…

Macro Calculator

Estimate your daily macronutrient targets in grams from age, sex, weight, height, activity, and a macro preset (or custo…

Noise Exposure Calculator

Enter a sound level in A-weighted decibels (dBA) and optional exposure time. Get the maximum recommended duration and da…

Ovulation Calculator

Estimate your ovulation day and fertile window from the first day of your last period and your average cycle length. Use…

Running Pace Calculator

Enter race or training distance and total time. Get pace per kilometre and average speed — useful for goal setting and s…

Period Calculator

Predict your next period — and the two after that — from the first day of your last period and your average cycle length…

Pregnancy Due Date Calculator

Estimate a due date by adding 280 days (40 weeks) to the first day of your last menstrual period (LMP). Ultrasound and c…

Pregnancy Test Calculator

Estimate when a home urine pregnancy test is most likely to work from your last period start and average cycle length. T…

Protein Intake Calculator

Get a daily protein target range in grams based on your weight and goal — maintain, fat loss (cut), or muscle gain (bulk…

Sleep Calculator

Plan bedtime or wake time around roughly 90-minute sleep cycles so you are less likely to wake from deep sleep mid-cycle…

Waist Ratio Calculator

Measure waist (and hip for WHR) to screen central adiposity — waist-to-height ratio or waist-to-hip ratio with establish…

Water Intake Calculator

Estimate a daily fluid target from body weight using a common ~33 ml per kilogram guideline, then add a little for extra…