Body Mass Index (BMI) Calculator
Quickly calculate your BMI online for free with BMI Calculator!
BMI Categories
Underweight = <18.5
Normal weight = 18.5–24.9
Overweight = 25–29.9
Obesity = BMI of 30 or greater
BMI Formula
Standard Formula:
Metric Formula:
BMI Limitations
- Older adults tend to have more body fat than younger adults with the same BMI.
- Women tend to have more body fat than men for an equivalent BMI.
- Muscular individuals and highly trained athletes may have higher BMIs due to large muscle mass.
General Tips
- Check that your answer makes sense clinically.
- Triple check your work.
- Have a colleague or pharmacist check your work.
- Know general therapeutic drug doses for commonly administered medications.
How to use BMI Calculator?
With this BMI Calculator, no need to worry about standard or metric BMI formula.
- Enter your weight and select unit kgs or lbs.
- Enter your height in any unit (inches, meters or centimetres)
- Click on “Calculate” button and your BMI will appear below.
This BMI Calculator not only calculate your Body Mass Index but also tells about Your BMI Category, like you are “Overweight” or “Normal Weight“.
Click here for BSA calculator to calculate your Body Surface Area.