BMI Calculator
Calculate your Body Mass Index (BMI) to understand your weight category. Get your BMI score, health risk assessment, and ideal weight range based on your height.
By Jonas Lindemann · Updated · How we build our calculators
Your BMI
24.3
Ideal weight range for your height:
118 - 160 lbs
BMI Categories
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About the Author
Jonas
I'm a software developer and multi-sport athlete: cycling since 2014, running since 2016 and triathlon since 2020. I built this calculator to help athletes like you and me.
Learn more about meFrequently Asked Questions
BMI (Body Mass Index) is a measure of body fat based on height and weight. It's calculated as weight (kg) divided by height squared (m²). BMI is used as a screening tool to identify possible weight problems.
A healthy BMI range is typically 18.5 to 24.9. Below 18.5 is considered underweight, 25-29.9 is overweight, and 30 or above is classified as obese according to WHO standards.
BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat mass, so athletes may have high BMI despite low body fat. For a complete picture, combine BMI with other measurements like body fat percentage.
BMI = weight (kg) / height² (m²). For example, a person weighing 70 kg and 1.75 m tall has a BMI of 70 / (1.75 × 1.75) = 22.9
A BMI of 30 or higher is classified as obese. Obesity is further divided into Class I (30-34.9), Class II (35-39.9), and Class III (40+), each carrying progressively higher health risks.