BMI Calculator for Children

Estimate BMI for children and teens. Free pediatric BMI calculator (note: clinical percentile requires growth charts).

body

Result

17.9

Breakdown

Healthy Weight Low
36.3
Healthy Weight High
48.8
Your BMI is in the underweight range.

About BMI Calculator for Children

What is bmi calculator for children?

A bmi calculator for children helps you estimate key health and wellness metrics based on widely-used formulas. This is an informational tool and does not replace professional medical advice.

How to use this calculator

  1. Enter your weight.
  2. Enter your height.
  3. Click the "Calculate" button.
  4. View your result instantly — the main result is displayed prominently at the top with a detailed breakdown below it.

When to use this calculator

  • Tracking your fitness progress and setting health goals
  • Estimating daily calorie or protein needs for your diet
  • Monitoring body metrics for general wellness awareness
  • Planning sleep schedules and understanding sleep cycles

How the calculation works

The bmi calculator for children uses widely-accepted health formulas and reference data to estimate your result from weight, height m. This is an estimate — consult a healthcare professional for clinical assessments.

Frequently Asked Questions

What is a healthy BMI range?▼
A BMI between 18.5 and 24.9 is considered healthy for most adults. Below 18.5 is underweight, 25-29.9 is overweight, and 30 or above is obese.
Is BMI accurate for athletes?▼
BMI does not distinguish muscle from fat, so very muscular individuals may register as overweight despite low body fat. Use body-fat percentage for a fuller picture.

Related tools

BMI Calculator

Calculate your Body Mass Index (BMI) instantly with metric or imperial units. Free BMI calculator with healthy weight range and category guidance.

Body Fat Calculator

Estimate your body fat percentage using the U.S. Navy circumference method. Free body fat calculator for men and women with fitness category guidance.

Calorie Calculator

Estimate your daily calorie needs using the Mifflin-St Jeor equation. Free calorie calculator for BMR, TDEE, and weight-loss or gain goals.

Due Date Calculator

Estimate your baby's due date and current pregnancy week using the first day of your last menstrual period. Free due date calculator.

Sleep Calculator

Find your ideal bedtime or wake-up time based on 90-minute sleep cycles. Free sleep calculator so you wake up refreshed, not groggy.

BMI Calculator for Women

Calculate BMI tailored for women with healthy weight ranges. Free female BMI calculator.