Mid-Parental Target Height
Tanner mid-parental target height: (mother + father ± 13 cm)/2 with a ± 8.5 cm expected range.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Child sex
- Male
- Mother's height
- 165
- Father's height
- 180
Result: Target adult height 179 cm (expected range 170.5–187.5 cm, ± 8.5 cm).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Boy
- predicted adult height = (father + mother + 13) / 2 cm.
- Girl
- predicted adult height = (father + mother − 13) / 2 cm.
What you enter
- Child sex
- Mother's height (cm)
- Father's height (cm)
How this is calculated
- Range
- the child's adult height is expected within about ± 8.5 cm (roughly the 3rd to 97th percentile target range).
Tanner JM, Goldstein H, Whitehouse RH. Standards for children's height at ages 2-9 years allowing for height of parents. Arch Dis Child. 1970;45(244):755-762. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.