Child & Teen BMI Calculator
Result
Child & Teen BMI Calculator — free online calculator.
Formula
- Child & Teen BMI Calculator calculates its result from Weight (kg), Height (cm), L reference value, M reference value (BMI median), S reference value. It uses the formula BMI = weight (kg) ÷ height (m)²; interpret using age/sex BMI-for-age percentiles.. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Weight, Height, L reference value, M reference value, S reference value. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Child & Teen BMI
- Weight: 35 kg
- Height: 140 cm
- L reference value: 1
- M reference value: 18 BMI median
- S reference value: 0.12
Using Weight (kg) = 35, Height (cm) = 140, L reference value = 1, M reference value (BMI median) = 18, S reference value = 0.12, the calculated result is BMI: 17.8571428571 | LMS z-score: -0.0661375661 | Percentile %: 47.3634081803.
Sample result: Calculating…
Frequently asked questions
What does the Child & Teen BMI calculate?
Child & Teen BMI Calculator — free online calculator.
Which values should I enter?
Enter Weight, Height, L reference value, M reference value, S reference value using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: BMI = weight (kg) ÷ height (m)²; interpret using age/sex BMI-for-age percentiles..
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.