BMI Calculator for Kids
Compute children's BMI from height and weight with metric/imperial inputs and a healthy-range readout for growth tracking. See where a 10-year-old sits — free, local, informational only.
How to Use the BMI Calculator for Kids
Similar Tools You Might Need
See allBMI Calculator
Computes Body Mass Index from metric or imperial height and weight inputs, categorizing the result into underweight, normal, overweight, and obese, with a healthy weight range for your height. Health data never leaves your device — every calculation runs locally in your browser.
Ideal Body Weight
Compute healthy weight range with Devine and Robinson formulas from height. See a 170 cm target band instantly — free, local, informational only.
Body Surface Area Calculator
Compute body surface area with four formulas (Mosteller, Du Bois, Haycock, Gehan & George) for medication dosing and physiology. Get m² from height and weight — free, local, informational only.
Weight Converter
Convert weight between kg, g, lb, oz, and stone. Supports both metric and imperial systems. Input never leaves your device — everything runs locally in your browser.
Words Per Page Calculator
Estimate pages from word count and font size — about 500 words/page at 12pt, 600 at 10pt and under. Font-size-only math, no spacing or margin inputs — free, local, no signup.
Frequently Asked Questions
Does it use age-and-gender percentiles?
No — this tool reuses the standard adult bands (under 18.5 / 25 / 30) from height and weight only, with no age or gender inputs. A child's reading is not a percentile; treat it as informational screening and see a pediatrician for growth-chart context.
What inputs does it need?
Height and weight only, in metric (cm/kg) or imperial (ft-in/lbs) — the tool converts between units and shows the healthy weight range for the entered height. A 140 cm child shows a 36.3–48.8 kg healthy range (18.5–24.9 × height²). Measure height barefoot against a wall.
Should a parent act on this number alone?
No — informational screening only. Concerning percentiles deserve a pediatrician visit with growth-chart history, not a single online number.
Is health data uploaded?
No — computation runs locally in your browser. Health data never leaves your device.
Related Health Tools
Child Height Predictor
Estimate a child's adult height from parents' heights with the mid-parental method. Get a ±8 cm range in seconds — free, local, estimate only.
Baby Growth Percentile Calculator
Compare baby weight and height against WHO median references by age and sex, shown as % above or below the median — a reference comparison, not clinical percentiles. Monitor your childs growth compared to population medians. Health data never leaves your device — every calculation runs locally in your browser.
Last updated October 2026