Health
BMI, calories, macros, pace and pregnancy dates. These are educational calculators, not medical advice — the alcohol tool in particular will never tell you it is safe to drive, because the only safe amount is zero.
BMI CalculatorCalculate your Body Mass Index from height and weight (metric or imperial) and see your category — in your browser.Calorie CalculatorEstimate your BMR and daily calorie needs (TDEE) from age, sex, size and activity, with goals to lose, maintain or gain.Body Fat CalculatorEstimate your body-fat percentage with the U.S. Navy tape method from a few measurements — in your browser.Ideal Weight CalculatorFind your ideal body weight from height and sex using common formulas, plus a healthy BMI range — in your browser.Water Intake CalculatorEstimate how much water to drink each day from your weight and activity, shown in litres and cups — in your browser.Running Pace CalculatorWork out pace, time or distance for your runs (km or miles) and see your splits — in your browser.Heart Rate ZonesCalculate your max heart rate and training zones 1–5 from age (and optional resting HR) — in your browser.One-Rep Max CalculatorEstimate your one-rep max from weight and reps, with a percentage table for training — in your browser.Sleep CalculatorFind ideal bedtimes or wake times based on ~90-minute sleep cycles — in your browser.Due Date CalculatorEstimate your due date from your last period or conception date, with gestational age and trimester — in your browser.Macro CalculatorSplit your daily calories into grams of protein, carbs and fat from a preset or custom ratio — in your browser.Pure Alcohol IntakeAdd up the grams of pure alcohol in your drinks and compare with health guidelines — computed locally. Never a tool for judging driving: the only safe amount before driving is zero.Cosmetics Expiry (PAO)Find out when an opened mascara, foundation or sunscreen should be replaced, from typical period-after-opening guidelines — in your browser.