Height Calculator

Convert height between units, predict child's height from parents' heights, compare heights, and calculate height percentiles with step-by-step solutions.

Input

ft in

Calculate Height

Select a calculation type and enter values to see results with detailed step-by-step solutions.

Complete User Guide

What is Height Calculator?

The Height Calculator is a comprehensive tool for converting height between different units (feet/inches, centimeters, meters), predicting a child's adult height from parents' heights, comparing two heights, and calculating height percentiles. This calculator is useful for personal measurements, medical purposes, and understanding height statistics.

How to Use This Calculator

  1. Select a calculation type from the dropdown (Convert Height, Predict Child Height, Compare Heights, or Height Percentile).
  2. Enter the required values with appropriate units.
  3. For feet/inches input, enter feet and inches separately.
  4. Click 'Calculate' to see the results.
  5. Review the detailed results, visualizations, and step-by-step solution.

Calculation Types

Convert Height

Convert height between feet/inches, centimeters, inches, and meters. Supports all common height units.

Predict Child Height

Predict a child's adult height from parents' heights using the mid-parental height formula. Provides a range of ±8.5 cm.

Compare Heights

Compare two heights and calculate the difference in centimeters and percentage. Useful for understanding height differences.

Height Percentile

Calculate height percentile based on age and gender. Shows how your height compares to others of the same age and gender.

Key Height Formulas

Height Conversion:

1 inch = 2.54 cm

1 foot = 12 inches = 30.48 cm

1 meter = 100 cm = 39.37 inches

Height Prediction (Mid-Parental Height):

Boys: (Father + Mother + 13 cm) / 2

Girls: (Father + Mother - 13 cm) / 2

Height Comparison:

Difference = Height 1 - Height 2

Percentage = (Difference / Height 2) × 100

Supported Units

Length Units

  • • Feet & Inches (ft, in)
  • • Centimeters (cm)
  • • Inches (in)
  • • Meters (m)

Conversion Factors

  • • 1 ft = 12 in = 30.48 cm
  • • 1 in = 2.54 cm
  • • 1 m = 100 cm = 39.37 in

Important Notes

  • Height must be between 50 cm (1.64 ft) and 300 cm (9.84 ft) for valid calculations.
  • For feet/inches input, inches must be between 0 and 11.99.
  • Height prediction is an estimate based on genetic factors; actual height may vary.
  • The prediction range is ±8.5 cm from the predicted height.
  • Height percentiles are approximate and based on general population statistics.
  • Percentile calculations are most accurate for adults (18+ years).
  • All conversions are precise to 2 decimal places.
  • Results are displayed with step-by-step solutions showing the calculation process.

Common Applications

  • Personal height measurements and conversions
  • Medical and health assessments
  • Child height prediction and growth tracking
  • Sports and athletic assessments
  • Clothing and sizing calculations
  • Understanding height statistics and percentiles
  • International unit conversions

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