Health and fitness calculators

Body, food, training and pregnancy dates. These use standard published formulas (Mifflin-St Jeor for calories, Naegele's rule for due dates) and are estimates, not medical advice.

• BMI CalculatorFind your body mass index and the weight range considered healthy for your height.
• Calorie CalculatorEstimate how many calories your body uses each day and what that means for losing, keeping or gaining weight.
• Running Pace CalculatorTurn a distance and a time into pace per mile, pace per kilometer and speed.
• Due Date CalculatorEstimate when your baby is due and how many weeks along you are today.
• Ovulation CalculatorEstimate your most fertile days for the next three cycles.
• Sleep CalculatorLine up your alarm with the end of a sleep cycle so you wake between cycles instead of in the middle of one.
• Macro CalculatorSplit your daily calories into protein, carbohydrate and fat targets in grams.

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