Calculate your Body Mass Index, get health category, BMI Prime, Ponderal Index & more — 100% client-side.
Body Mass Index (BMI) is a measure of body fat based on height and weight. It's a screening tool used to identify potential weight problems in adults. BMI = weight (kg) / height (m)².
Underweight: < 18.5 | Normal: 18.5–24.9 | Overweight: 25–29.9 | Obese: ≥ 30
All calculations are performed locally in your browser. No data is sent to any server. Your health information stays private.
The BMI Calculator on Toolslove.online is a free web-based tool that calculates your Body Mass Index using height and weight. It provides instant feedback on your weight status, BMI Prime, Ponderal Index, and healthy weight range. All calculations are performed locally in your browser — your data is never sent to any server.
Select your preferred unit system: US Units (feet/inches/pounds), Metric Units (cm/kg), or Other Units.
Enter your age (2–120), select your gender, and input your height and weight.
Click the "Calculate BMI" button to see your results.
Review your BMI value, health category, BMI Prime, Ponderal Index, and healthy weight range.
BMI is a measure of body fat based on height and weight. It's calculated by dividing weight in kilograms by height in meters squared.
BMI = weight (kg) / height (m)². For US units: BMI = 703 × weight (lbs) / height (in)².
Underweight: < 18.5, Normal: 18.5–24.9, Overweight: 25–29.9, Obese: ≥ 30.
BMI is a general screening tool. It may not be accurate for athletes, pregnant women, elderly, or people with high muscle mass.
No. All calculations are performed locally in your browser. No data is sent to any server or stored anywhere.
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