Health & Fitness
Mid-Parental Target Height Calculator
Predict a child's adult height from parental heights using the mid-parental method.
Preparing your result…
What this calculator does
Calculates Mid-Parental Target Height Calculator using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
Boys: (mother + father + 13 cm) ÷ 2; Girls: (mother + father − 13 cm) ÷ 2
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • Mid-parental target height cm: boy=(mother cm+father cm+13)/2; girl=(mother cm+father cm−13)/2.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • AAP clinical guide supports the formula. Use measured biological-parent heights and label it an approximate familial target, not a guaranteed adult height. If displaying an expected range, use the named reference’s range rather than silently mixing conventions.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Mother's height (cm) | Father's height (cm) | Predicted adult height |
|---|---|---|---|
| Worked example | 163 | 178 | 177 cm |
| Half the amounts | 130 | 140 | 141.5 cm |
| Double the amounts | 200 | 215 | 214 cm |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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