Child & Teen BMI Calculator
Enter every measurement Child & Teen BMI Calculator asks for, then press Calculate. The result stays blank while you are still typing.
Press Calculate after the entries are in.
What Child & Teen BMI is for
Child & Teen BMI Calculator is the page to open when you need child & teen bmi from measurements you already have. It belongs with the other health calculators because that is the work this arithmetic supports. The intake that matches this body size is the daily calorie needs. Type the entries first. The result stays hidden until you press Calculate, so a half-finished form never flashes a number you might mistake for the answer.
How to fill in this calculator
- Height. Enter the value this part of the job needs. The unit list on this field includes in, cm.
- Weight. Enter the value this part of the job needs. The unit list on this field includes lb, kg, st.
- Gender. Enter the value this part of the job needs. The choices include boy, girl.
- Years. Enter the value this part of the job needs. The choices include 2, 3, 4, 5, 6, 7.
- Months. Enter the value this part of the job needs. The choices include 0, 1, 2, 3, 4, 5.
The formula in plain language
BMI is 703 times weight in pounds, divided by height in inches squared. The same figure in metric units is kilograms divided by meters squared. A body-fat estimate from BMI, age, and sex is the Deurenberg equation, which is a screening number, not a lab test. Calorie needs start from a basal rate. The Mifflin-St Jeor equation is 10 times kilograms, plus 6.25 times centimeters, minus 5 times age, plus 5 for men or minus 161 for women. Multiply by an activity factor from 1.2 for a desk job to about 1.9 for daily hard training. A half-pound change a week is about 250 calories a day.
A worked example
A person who is 5 feet 10 inches and 160 pounds has a BMI of 23.0, in the healthy-weight band. A 35-year-old man at that size has a Mifflin-St Jeor BMR near 1,660 calories. With moderate training the maintenance estimate is about 2,570 calories.
Height, weight, and a tape measurement are one body. This child & teen bmi screening number belongs with BMI from height and weight and child height percentile.
Mistakes that move the answer
- These numbers do not diagnose anything. A clinician uses more than a calculator.
- Katch-McArdle needs a body-fat percent because it starts from lean mass. Leaving that field empty makes the formula incomplete.
- Activity is what you do on a typical week, not the week you started a new program.
How to check the result
After Calculate shows the child & teen bmi result, redo the last operation with a pencil using the rounded figures on the screen. Matching that check means the inputs were read correctly. If you edit a label or a sentence in this HTML file, reload the page. The form and this article both live in the file, so the edit is what visitors will read.