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Child height percentile calculator

Compare standing height in centimeters with the CDC 2000 reference by age and sex.

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More inputs and assumptions

Answer

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Compare the measurement with the CDC 2000 US reference for ages 2 to under 20 years.

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Precision and calculation record
Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.
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Formula and assumptions
Uses the CDC LMS reference row for the completed month of age. Values below the 3rd or above the 97th reference percentile are reported as ranges, not extrapolated tail estimates. These are historical US reference charts, not an ideal target, a diagnosis or a growth prediction. A clinician should interpret serial measurements. BMI above the reference range needs the extended CDC charts. Do not use these tables for children under 2 years.
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Using Child height percentile calculator
Compare standing height in centimeters with the CDC 2000 reference by age and sex.
Uses the CDC LMS reference row for the completed month of age. Values below the 3rd or above the 97th reference percentile are reported as ranges, not extrapolated tail estimates. These are historical US reference charts, not an ideal target, a diagnosis or a growth prediction. A clinician should interpret serial measurements. BMI above the reference range needs the extended CDC charts. Do not use these tables for children under 2 years.
Next: Calculate BMI
Next: Child BMI calculator
A worked example
At the CDC reference age of 120.5 months, the male reference median is 138.823411 centimeters, which corresponds to the 50th percentile.
Before you use the result
Uses the CDC LMS reference row for the completed month of age. Values below the 3rd or above the 97th reference percentile are reported as ranges, not extrapolated tail estimates. These are historical US reference charts, not an ideal target, a diagnosis or a growth prediction. A clinician should interpret serial measurements. BMI above the reference range needs the extended CDC charts. Do not use these tables for children under 2 years.
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ToolOctopus. “Child height percentile calculator.” Updated 2026-09-29. https://tooloctopus.com/child-height-percentile-calculator.
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