# How do you calculate BMI for infants?

Contents

## How do you calculate a baby’s BMI?

Body-Mass Index Formula

1. Multiply their weight (in pounds) by 703. 184 × 703 = (A) 129,352.
2. Multiply their height (in inches) by itself. 69 × 69 = (B) 4,761.
3. Divide (A) by (B)

8.12.2020

## What is a normal BMI for a baby?

For children, BMI is presented as a percentile, which plots the child’s BMI next to other children of the same age and sex. Falling between the 5th and 85th percentiles is considered normal and healthy.

## Do you use BMI for infants?

BMI is used to assess obesity in children and adults,6 and the World Health Organization (WHO) has published BMI standards for infants.

## How do you calculate BMI with age?

The formula is BMI = kg/m2 where kg is a person’s weight in kilograms and m2 is their height in metres squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9. BMI applies to most adults 18-65 years.

## How do you calculate BMI manually?

Then, calculate BMI by dividing weight in pounds (lb) by height in inches (in) squared and multiplying by a conversion factor of 703. When using a handheld calculator, if your calculator has a square function, divide weight (lb) by height (in) squared, multiply by 703, and round to one decimal place.

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## What is a good BMI for child?

Healthy weight: BMI is equal to or greater than the 5th percentile and less than the 85th percentile for age, gender, and height. Overweight: BMI is at or above the 85th percentile but less than the 95th percentile for age, gender, and height.

## How do you calculate BMI example?

Description

1. Formula: weight (kg) / [height (m)]2 With the metric system, the formula for BMI is weight in kilograms divided by height in meters squared. …
2. Example: Weight = 68 kg, Height = 165 cm (1.65 m)
3. Calculation: 68 ÷ (1.65 x 1.65) = 24.98.

## What is my child’s ideal weight?

Your child is a healthy weight if their BMI for age and sex is from the 5th to below the 85th percentile. A child below the 5th percentile is below a healthy weight (underweight), and a child at the 85th percentile and above is above a healthy weight.

## How do you calculate BMI percentile?

BMI is calculated using your child’s weight and height and is then used to find the corresponding BMI-for-age percentile for your child’s age and sex. BMI-for-age percentile shows how your child’s weight compares to that of other children of the same age and sex.

## At what age is BMI The lowest?

An early “adiposity” rebound, occurring before ages 4 to 6, is associated with obesity in adulthood. In the example shown here, adiposity rebound occurred at around age 3. BMI reached the lowest point at 32 months (2 years 8 months) and then began to increase.

## How is overweight defined in infants?

Overweight is defined as a BMI at or above the 85th percentile and below the 95th percentile for children and teens of the same age and sex. Obesity is defined as a BMI at or above the 95th percentile for children and teens of the same age and sex.

## Is my baby underweight?

In general, an infant born at term is considered underweight when their weight-for-age measurement is in the 5th percentile or less. (This is not necessarily the case if your baby was born premature or with certain health conditions.)

## What is the fastest way to calculate BMI?

How to Calculate Your Body Mass Index 