Free Online BMI Calculator USA
Quickly check your Body Mass Index (BMI) with our free US BMI Calculator. Just enter your age, gender, weight, and height to instantly see if you are underweight, normal, overweight, or obese.
What is BMI (Body Mass Index)?
BMI is a simple formula that estimates body fat using weight and height. It helps people in the United States understand if they fall within a healthy weight range for their height.
BMI Categories
| BMI Range | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Normal weight |
| 25 – 29.9 | Overweight |
| 30 and above | Obese |
Why Use Our BMI Calculator USA?
✅ Easy to use and mobile-friendly
✅ Instant results with BMI category
✅ Works for men and women
✅ Completely free online tool
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Frequently Asked Questions(FAQs)
BMI is a reliable method for estimating body fat but does not account for muscle mass.
No, the BMI formula is the same for both men and women.
BMI values for children require age- and sex-specific percentiles, so this tool is best suited for adults
Consult a healthcare professional for diet, exercise, and lifestyle guidance.
No, BMI is just one indicator. Waist circumference, body fat percentage, and overall fitness also matter.