Is BMI accurate for everyone?
BMI is a screening tool, not a diagnostic of body fatness or health. It may overestimate body fat in athletes and underestimate it in older adults.
Calculator
Enter your values
Results
Your BMI
22.9
Normal weight
Analysis
Interpretation of the current calculator output
Calculation Summary
The current inputs have been processed for the bmi calculator. Review the results panel for the computed output and use the charts tab to compare the current values visually.
How to Read It
The main result shows the direct answer for your current inputs. Supporting sections below explain the method, example, and common questions so the result is easier to interpret.
How to Use
Step-by-step instructions
- 1Select your preferred unit system (Metric or Imperial).
- 2Enter your height and weight.
- 3The calculator will display your BMI and category.
BMI Formula
Body Mass Index is calculated by dividing weight in kilograms by the square of height in meters.
BMI = kg / m²Variables:
kgWeightmHeightExample
Standard Adult
Inputs:
Height:5ft 9in
Weight:154 lbs
Steps:
- 1.Height = 69 in = 1.75 m
- 2.Weight = 154 lbs = 70 kg
- 3.BMI = 70 / (1.75)² = 22.9
Result:
22.9 (Normal weight)