BMI Calculator

Calculate your Body Mass Index quickly and easily

Height:

Weight:

What is BMI?

Body Mass Index (BMI) is a simple calculation that uses your height and weight to determine if you're in a healthy weight range. The formula is:

BMI = weight (kg) ÷ height (m)²

BMI Categories

Underweight
BMI below 18.5

Normal Weight
BMI 18.5-24.9

Overweight
BMI 25-29.9

Obese
BMI 30 and above

Important Notes

BMI is a screening tool and doesn't directly measure body fat. It may not be accurate for athletes with high muscle mass, older adults, or certain ethnic groups. Always consult a healthcare professional for personalized health advice.

$1.00
Research Fund

$5.00
Research Fund

$10.00
Research Fund

$20.00
Research Fund

$30.00
Research Fund

$40.00
Research Fund

Custom Amount

0.1% Cover the Fee

Fund Research that stops obesity! "Donations support our independent research into Ghrelin, and overeating. Donations fund all that encompasses scientific theory, research, and analysis. Together, we can defeat obesity one calorie at a time while feeling full faster and longer than ever before. Tax deductibility depends on multiple factors- please consult a tax professional about potential deductions. Donations are non-refundable.