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Kordu Tools

BMI Calculator

Calculate your Body Mass Index with metric or imperial units and see your BMI category instantly.

Your measurements

Your BMI

22.9

Normal

1018.5253040
UnderweightNormalOverweightObese
Healthy weight range56.7 - 76.3 kg

BMI is a general indicator and does not account for muscle mass, bone density, age, or sex. Consult a healthcare professional for personalised advice.

How to use

  1. 1

    Choose your unit system

    Select Metric (kg and cm) or Imperial (lbs and feet/inches) using the toggle at the top.

  2. 2

    Enter your measurements

    Type your weight and height into the input fields.

  3. 3

    Read your BMI result

    Your BMI is calculated instantly with a colour-coded category and a visual gauge showing your position on the scale.

  4. 4

    Check the healthy range

    See the healthy weight range for your height displayed below the gauge.

Frequently asked questions

What is a healthy BMI?
A BMI between 18.5 and 24.9 is generally considered normal weight. However, BMI does not account for muscle mass, bone density, age, or sex, so it should be used as a general guide rather than a definitive health measure.
How is BMI calculated?
BMI equals weight in kilograms divided by height in metres squared: BMI = kg / m^2. For imperial units, weight in pounds and height in inches are converted to metric before calculating.
Is BMI accurate for athletes?
BMI can overestimate body fat in muscular individuals because it does not distinguish between muscle and fat. Athletes with high muscle mass may show an elevated BMI despite having a healthy body composition.
Is my data sent to a server?
No. All BMI calculations happen entirely in your browser. Your weight and height are never transmitted anywhere.

Enter your weight and height in metric (kg and cm) or imperial (lbs and

feet/inches) to calculate your BMI instantly. The result is displayed

with a colour-coded category — underweight, normal, overweight, or

obese — along with a visual gauge showing where you fall on the BMI

scale. See the healthy weight range for your height. Toggle between

metric and imperial with one click. All calculations run locally in

your browser with no data sent to any server.

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