About Height Calculators
Height Calculators is a free site that helps parents and teens answer one question: how tall will I be? We build simple, accurate height calculators based on the same methods pediatricians use, and explain the results in plain English.
Why We Built This Height Calculator Site
Most height tools online give you a number and nothing else. We wanted a place that shows the number, the range, and what it actually means for your child.
- Every calculator uses a published method, like the Khamis-Roche method or the mid-parental height formula.
- Every result comes with a range, because no one can predict height to the inch.
- Every page tells you when it's worth talking to a doctor.
Our Height Calculators
- Height Calculator: predicts a child's adult height
- Height Percentile Calculator: compares height with kids the same age
- Mid-Parental Height Calculator: target height from the parents' heights
- Height Chart by Age: average height from 2 to 20
- Waist-to-Height Ratio Calculator: a quick health check
- Army Height and Weight Calculator: the Army's waist-to-height standard
- Height Converter: feet to cm and back
Who Builds Our Height Calculators
Every calculator on this site is built by Ryan Childers, a web developer with 7 years of experience building health tools. Read our editorial policy to see how we research and check every page.
Our Promise
- Free: every calculator is free, with no sign-up.
- Private: the numbers you type stay in your browser. We don't store them.
- Honest: we show the limits of every method, not just the result.
- Not medical advice: our tools give estimates, not diagnoses. See our medical disclaimer.
Questions or ideas? Contact us. We read every message.