Free BMI Calculator — Find Your Healthy Weight Range

BMI (Body Mass Index) is the most widely used quick-check for whether your weight is in a healthy range for your height. It’s not the whole picture — but it’s a useful starting point.

The Tools.Town BMI Calculator supports both metric and imperial inputs. Enter your weight and height and you instantly see:

• Your BMI — calculated to 1 decimal place
• Your category — Underweight, Normal, Overweight, or Obese
• Your healthy weight range — the weight range that would put you in the Normal BMI band at your current height

No personal data is stored. Everything runs in your browser.

Frequently Asked Questions

What is a healthy BMI? The WHO defines 18.5–24.9 as the Normal range. Under 18.5 is Underweight, 25–29.9 is Overweight, and 30+ is Obese.

Is BMI an accurate health measure? BMI is a useful population-level screening tool but doesn’t account for muscle mass, bone density, or fat distribution. Consult a doctor for a personalised assessment.

What units does it support? Both metric (kilograms and centimetres) and imperial (pounds and inches).

Try it now — Open Bmi Calculator — no signup required.