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Health & Fitness
BMI, Calories, Pregnancy & More
BMR CalculatorBasal metabolic rate: calories your body burns at rest.Calorie CalculatorDaily calories to maintain, lose or gain weight.Body Fat CalculatorEstimate body fat percentage with the US Navy method.Ideal Weight CalculatorIdeal body weight from several popular formulas.Water Intake CalculatorDaily water your body needs based on weight and exercise.Pregnancy Due Date CalculatorEstimated due date from the first day of your last period.Pregnancy Week CalculatorHow many weeks pregnant you are today.Ovulation CalculatorEstimate your fertile window and ovulation day.Period CalculatorPredict your next three periods.Waist to Hip Ratio CalculatorWaist-to-hip ratio and health risk band.Protein Intake CalculatorDaily protein target for your goal.Macro CalculatorSplit daily calories into protein, carbs and fat.Heart Rate Zone CalculatorTraining zones using the Karvonen method.Max Heart Rate CalculatorMaximum heart rate by age.VO2 Max CalculatorEstimate VO2 max from the Cooper 12-minute run.One Rep Max CalculatorEstimate your 1RM from a lighter set.Running Pace CalculatorPace and speed from distance and time.Race Time PredictorPredict race times with the Riegel formula.Calories Burned CalculatorCalories burned during common activities.Steps to Km CalculatorConvert steps to distance and calories.Sleep CalculatorBest bedtimes for your wake-up time based on 90-minute sleep cycles.Lean Body Mass CalculatorLean mass and fat mass from body fat percentage.Body Surface Area CalculatorBody surface area using the Mosteller formula.Weight Loss CalculatorHow long it takes to reach your goal weight.Pace Converter (min/km to min/mile)Convert running pace between kilometers and miles.Alcohol Units CalculatorUK alcohol units in a drink.