Infant Height Percentile Calculator

Not needed for the weight-for-length and weight-for-stature charts. The charts run to 240 months (20 years).
Recumbent length under 2 years, standing height from 2 years. Centimetres, or inches in US units.
Kilograms, or pounds in US units.
Percentile
91.0 %
Child Growth Percentile Calculator
Z-score (SD score)
1.34
Reference median for age
67.62
Percent of median
104.3 %
Chart used
Length/height-for-age, 0 to 1856 days [length-height-for-age]
Reference
WHO Child Growth Standards (2006)
Measurement used
70.500
BMI
19.19 kg/m2
Interpretation
Within the typical range, at the 91st percentile.
Worked out from CDC 2000 Growth Charts - percentile data files with LMS parameters and 5 other sources.
A growth percentile is a screening number, not a diagnosis. Serial measurements plotted over time, taken with calibrated equipment, are what a clinician interprets. Discuss any concern with your paediatric provider.

How this is worked out

4 steps
  1. Chart: WHO Length/height-for-age, 0 to 1856 days (boys).
  2. Reference parameters at 182.625 days: L = 1, M = 67.623588, S = 0.03165375.
  3. z = ((X/M)^L - 1)/(L*S) = ((70.5/67.623588)^1 - 1)/(1 x 0.03165375) = 1.343779
  4. Percentile = Phi(z) x 100 = 91.05%.
Reference percentile curve at this agetable
percentilevalueunit
363.598cm
564.103cm
1064.88cm
2566.18cm
5067.624cm
7569.067cm
9070.367cm
9571.144cm
9771.65cm
Every chart these inputs supporttable
chartmeasurevaluezScorepercentile
Length/height-for-age, 0 to 1856 daysheight-for-age70.51.343891.05
Weight-for-age, 0 to 1856 daysweight-for-age9.5391.700695.55
BMI-for-age, 0 to 1856 daysbmi-for-age19.1921.218888.85
Weight-for-length, 45 to 110 cmweight-for-length9.5391.322990.71
Weight-for-height, 65 to 120 cmweight-for-stature9.5391.108586.62

Results are general information, not financial, tax, legal, medical or engineering advice.