Top BMI Calculators for Kids You Can Use Online
The body mass index (BMI) is a dynamic online tool that helps you understand the health status of your child based on their weight in relation to their height and gender. However, it can seem to be more challenging to determine the right BMI for kids than adults because their bodies continue to grow and change with time.
Fortunately, there are some online BMI calculators for children and teens that can take age, gender, and growth patterns into consideration. This guide will offer you a thorough insight into a few reliable BMI calculators for children, how to measure the BMI of your child, the BMI table for kids, the advantages of analyzing BMI, and more.
Best Online BMI Calculators for Kids
There are also several online BMI calculators designed to check the BMI of children and guide parents in tracking their kids' growth and well-being. Here are some of the finest and most reliable BMI calculators:
- The KidsHealth BMI Calculator
The KidsHealth BMI Calculator is ideal for kids and teenagers between 2 and 20 years old. It computes BMI and compares the result to other kids of the same gender and age, giving a better idea of whether the child is underweight, healthy, overweight, or obese.
Parents can simply enter the child's gender, height, weight, and birth date to obtain precise results.
- CDC's Child and Teen BMI Calculator
A highly reliable tool, the CDC's Child and Teen BMI Calculator utilizes official growth charts to determine BMI, considering age, sex, height, and weight. It categorizes results into groups such as underweight, normal weight, and overweight, providing a complete picture of a child's health.
- Baylor College of Medicine Children's BMI & Energy Requirement Calculator
This calculator provides a comprehensive breakdown of a child's weight in relation to height, age, sex, and energy requirements. It assists parents in understanding the association between their children's weight and general health. This tool is considered highly useful for effective weight management and maintaining balanced growth.
- Stanford Children's Health BMI Calculator
Intended for children between the ages of 5 and 18, the Stanford Children's Health BMI Calculator groups BMI into categories like underweight, ideal weight, at risk for being overweight, and overweight. It takes the age and gender of the child to provide more precise results, making it a viable tool for monitoring growth and health.
Steps to Measure BMI for Kids Using a BMI Calculator
Here are the steps to take when using an online BMI calculator for children:
Step 1: Go to a trusted online platform that offers a BMI calculator for kids.
Step 2: Choose your unit of measurement.
Step 3: Choose your child's sex (male or female).
Step 4: Provide your child's birth date in the format requested (month/day/year).
Step 5: Enter your child's height in the unit requested (inches or centimeters).
Step 6: Enter your child's weight in the correct unit (pounds or kilograms).
Step 7: Click "Calculate BMI" to produce the answer.
Check your child’s BMI result and match it with the chart to determine the child's BMI according to gender and age.
BMI Chart for Kids
The table below highlights the BMI range for children across various weight categories:
BMI Category |
BMI Range |
Underweight |
Below the 5th percentile |
Normal Weight |
5th to less than the 85th percentile |
Overweight |
85th to less than the 95th percentile |
Obese |
95th percentile or higher |
Class 2 Obesity |
120% of the 95th percentile |
Class 3 Obesity |
140% of the 95th percentile |
Advantages of Measuring BMI for Kids
Mentioned below are the crucial advantages of measuring your children’s body mass index (BMI):
- Monitor Healthy Growth: BMI can serve as a tool to help keep track of a child's healthy growth. A normal BMI generally suggests that the child's weight is appropriate for their height and age.
- Detect Potential Health Problems Early: By tracking changes in BMI, parents can detect health conditions like obesity early on and opt for preventive measures, thus reducing the risk of chronic diseases.
- Guide for Lifestyle Changes: If a child is classified as falling either in an underweight or overweight category, tracking their BMI can be a smart move. It provides an opportunity to discuss their BMI readings with healthcare providers and adopt healthy lifestyle changes involving nutrition and/or physical activity.
- Recommendation for a Health Plan: The BMI can also be considered along with the other health data obtained by a child's clinician to recommend a health plan designed just for that child for a healthy, balanced lifestyle.
Measuring BMI in children is crucial for parents to make sure that their kid's growth and health are on the right track. It provides useful information about whether a child's weight is healthy for their height and age.