SuperCalc

Healthy BMI Range

A healthy BMI falls between 18.5 and 24.9. This range is associated with the lowest risk of heart disease, type 2 diabetes, hypertension, and all-cause mortality at a population level. But BMI is a screening tool, not a definitive health measure — your actual health depends on body composition, activity level, diet, genetics, and other factors. Check your BMI below and see your healthy weight range for your height.

BMI Calculator

Enter your height and weight to calculate your Body Mass Index.

cm
kg

BMI Categories

WHO classification of Body Mass Index ranges.

CategoryBMI Range
Underweight
< 18.5
Normal
18.5 – 24.9
Overweight
25 – 29.9
Obese I
30 – 34.9
Obese II
35 – 39.9
Obese III
40+

Frequently Asked Questions

What BMI is considered healthy?
18.5 to 24.9 is the WHO healthy range. Within this, some research suggests the 'sweet spot' for lowest mortality is around 20–25, with 22–23 being optimal for many populations. However, athletes and muscular individuals may be perfectly healthy at higher BMIs.
Is a BMI of 25 unhealthy?
Not necessarily. A BMI of 25.0 is technically the start of the 'overweight' range, but it's a population-level guideline. Many people at BMI 25 are metabolically healthy, especially if they exercise regularly and have good waist circumference. It's a flag to be aware of, not an alarm.
How do I get my BMI into the healthy range?
The math is simple: reduce weight or increase height (only possible for growing adolescents). For weight loss, a sustained caloric deficit of 500 calories/day typically produces ~0.5 kg/week loss. Combining diet modification with regular exercise is most effective. Consult a healthcare provider before starting any weight management program.

Medical disclaimer: BMI is a screening tool, not a medical diagnosis. It does not measure body fat directly and does not account for muscle mass, bone density, age, sex, or ethnicity. Consult a healthcare provider for personalized health advice.

Related BMI topics

Other tools you might like