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Both calculators run independently — change the inputs on either side to compare results.

Health

Blood Pressure Category Calculator

Calculate your mean arterial pressure (MAP) from your systolic and diastolic readings. MAP estimates the average pressure perfusing your organs across the cardiac cycle.

Fill in the required fields to see your result.
Fitness

BMI Calculator

Calculate Body Mass Index (BMI) — body weight in kg divided by height in metres squared — to screen for under/overweight categories. The most widely used population-level fitness and health risk metric, with known limitations for athletes and unusual body compositions.

Underweight<18.5Normal18.5–25Overweight25–30Obese I30–35Obese II+35+
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Key differences

Blood Pressure Category CalculatorBMI Calculator
CategoryHealthFitness
Inputs required22
ResultMean Arterial Pressure (mmHg)Your BMI
What it doesCalculate your mean arterial pressure (MAP) from your systolic and diastolic readings. MAP estimates the average pressure perfusing your organs across the cardiac cycle.Calculate Body Mass Index (BMI) — body weight in kg divided by height in metres squared — to screen for under/overweight categories. The most widely used population-level fitness and health risk metric, with known limitations for athletes and unusual body compositions.