Mid-Parental Height Calculator

Estimate your child's predicted adult height based on the heights of both parents using the mid-parental height formula.

Parent Heights

Formula Used:
Boys: (Father + Mother + 13) / 2
Girls: (Father + Mother - 13) / 2

Predicted Adult Height

Mid-Parental Height (Target)

175.0 cm

5'9"

Target Height Range (90% confidence)

166.5 - 183.5 cm

5'6" - 6'0"

Extended Range (95% confidence)

165.0 - 185.0 cm

Parents' Average Height

168.5 cm

Important Notes

  • - This is a genetic prediction based on parent heights
  • - Actual height may vary due to nutrition, health, and environment
  • - Most children will fall within the target height range
  • - If child's height is significantly outside the range, consult a pediatrician
  • - The 13 cm adjustment accounts for average male-female height difference