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Health tools

BMI, calories, BMR, body fat, ovulation and more (not medical advice).

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BMI CalculatorCalculate your body mass index from height and weight and see its category. BMR CalculatorBasal metabolic rate from the main equations, compared side by side. Body Fat CalculatorBody fat % from a tape measure, with fat mass and the category for your sex. Calorie CalculatorDaily calorie needs from your age, size and activity, with weight-loss and gain targets. Due Date CalculatorDue date from your last period, conception or IVF transfer, plus weeks pregnant. Ideal Weight CalculatorIdeal body weight for your height from four formulas and the healthy BMI range. Macro CalculatorTurn a calorie target into daily and per-meal grams of protein, carbs and fat. Ovulation CalculatorOvulation day, fertile window and next period from your last period and cycle length. Running Pace CalculatorEnter any two of pace, time and distance to get the third, plus splits. Water Intake CalculatorDaily water needs from your weight and activity, in cups and bottles.

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