Health tools

BMI, calories and simple health sums. 11 free tools, any file size, no account.

Standard health formulas, with the equation named each time: BMI, BMR and TDEE, body fat from measurements, a macro split, daily water, waist-to-hip ratio, a due date, a running pace. Figures to think with, not a diagnosis.

BMI CalculatorBMI value, category and healthy weight range.Calorie CalculatorDaily calorie target for a selected goal.BMR & TDEE CalculatorBMR and TDEE estimates side by side.Body Fat Percentage CalculatorA US Navy body fat estimate.Ideal Weight CalculatorFour formula estimates together.Macro CalculatorProtein, carbohydrate and fat grams.Water Intake CalculatorDaily water from weight and activity.Waist-to-Hip Ratio CalculatorA waist-to-hip ratio and reference band.Pregnancy Due Date CalculatorAn estimated due date and current week.Ovulation CalculatorAn estimated fertile window and ovulation date.Running Pace CalculatorPace, finish time or distance.

Frequently asked questions

Which equations are used?

Named ones. BMR and the calorie targets come from Mifflin-St Jeor; a due date is 280 days from the last period or 266 from conception. Each page states the basis it used.

Is this medical advice?

No. These are the same formulas a chart on a clinic wall uses, and they ignore everything a person's history contains. Treat them as a starting figure and ask a clinician about anything that matters.

Is my height, weight or cycle data saved?

No. What you enter is used by the page on your device to work out the answer and is gone when you close the tab. Nothing is sent to a server.

The same tools under other names: Marathon Time Calculator · TDEE Calculator · BMR Calculator · Calorie Deficit Calculator · Due Date Calculator · Period Calculator · Running Pace Calculator

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