Height Calculator

Convert height between feet/inches and centimeters. Estimate child adult height and compare percentiles.

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Fill in the fields above, then press Calculate.

A height converter translates between feet/inches, centimeters, and meters for easy international height comparison.

Use "Convert height" to switch between feet/inches and centimeters. Use "Predict child height" to estimate adult height based on parent heights using the mid-parent method.

Examples

Convert 5'10" to metric

5 feet 10 inches = 70 inches x 2.54 = 177.8 cm = 1.78 meters.

Predict height for a boy

Father: 5'10" (177.8 cm), Mother: 5'4" (162.6 cm). Predicted = (177.8 + 162.6 + 13) / 2 = 176.7 cm (5'9.6"). Range: 168.2 — 185.2 cm.

Frequently Asked Questions

How accurate is the height predictor?
The mid-parent method explains about 40% of height variation. The +/- 8.5 cm range covers most outcomes but individual results may fall outside this range due to genetic variation, nutrition, and health factors.
Why is 13 cm added for boys and subtracted for girls?
The 13 cm (about 5 inches) represents the average height difference between adult males and females. Adding it for boys and subtracting for girls adjusts the mid-parent height to the appropriate sex-specific prediction.
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Quick Tips

  • •The mid-parent height prediction is most accurate for children who have not yet started puberty.
  • •Genetic height prediction has a margin of error of about 3-4 inches.
  • •Nutrition, health, and environment also significantly affect final adult height.