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Calcimator

Child Height Predictor

Predict your child's adult height using the mid-parent method or current height projection. Based on established pediatric growth formulas.

Inputs

ft
in
ft
in

Results

Predicted Adult Height

5'10"

Height (cm)178 cm
Expected Range5'8" — 6'0"
Range (cm)173 — 183 cm
How to Use This Calculator
  1. Select the prediction method — Mid-Parent Height or Current Height Projection.
  2. Choose the child's sex (male or female).
  3. For Mid-Parent: enter both parents' heights. For Current Height Projection: enter child's current age and height.
  4. Review the Predicted Adult Height and height range (±2 inches accuracy).
  5. Note that genetics, nutrition, and health all influence final adult height.

What each input means

Prediction Method
Calculation method to use.
Child's Current Age
Used for the current height projection method.

How this is calculated

Formula

Mid-Parent Method: Boys = (Father + Mother + 5") ÷ 2. Girls = (Father + Mother - 5") ÷ 2. Accuracy ±2 inches.

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Prediction Method = 0, Child's Sex = 0, Father's Height (ft) = 5, Father's Height (in) = 10 = 9 input(s) provided
  2. Calculate Predicted Adult Height
    Predicted Adult Height = `${predictedFeet
    5'10" = 5'10"
  3. Calculate Height
    Height
    178 = 178
  4. Calculate Expected Range
    Expected Range = `${lowFeet
    5'8" — 6'0" = 5'8" — 6'0"

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