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Height Calculator

Use our versatile online height calculator to predict your child's future height or convert between different height units effortlessly. Get accurate height estimates and conversions with ease.

Male Female
Male Female

Predicting Based on the Parents' Heights Only

This calculator uses the parents' height only. It can be used to predict the future heights of unborn children or very young infants.

Height Converter

The following converter can be used to convert the body height between the metric unit and the unit used in the United States.

US unit convert to metric unit:
Metric unit convert to US unit

Height calculator:

An online height calculator is a tool that can be used to predict a child's adult height based on their current height, weight, age, and the heights of their parents. There are a number of different height calculators available, and they use a variety of other methods to make their predictions.

Mid-parental height calculator: This method takes the average of the parents' heights and adds or subtracts a specific amount based on the child's gender.

Khamis-Roche method: This method is more complex and takes into account the child's current height and weight in addition to the heights of their parents. It is generally more accurate than the mid-parental height calculator.


  • Choose the units you want to use. You can select either "US units" or "Metric units", depending on your preference.
  • Enter the child's age. For example, if the child is 5.2 years old, type "2.5" in the space provided.
  • Select the child's gender. You can choose between "Male" or "Female."
  • Enter the child's current height. For instance, if the child is 3 feet and 8 inches tall, enter "3" for feet and "8" for inches in the respective boxes.
  • Input the child's weight in pounds. For example, if the child weighs 40 pounds, type "40" in the weight box.
  • Enter the mother's height. If the mother is 5 feet and 5 inches tall, enter "5" for feet and "5" for inches.
  • Input the father's height. If the father is 5 feet and 10 inches tall, enter "5" for feet and "10" for inches.
  • Click on the "Calculate" button or any similar button provided on the website.
  • The calculator will then display an estimate of the child's future height based on the provided information.

Predicting Based on the Parents' Heights Only

  • Enter the mother's height in centimetres into the "Mother's Height (cm)" field. For example, if the mother's height is 164 centimetres, type "164" into this field.
  • Enter the father's height in centimetres into the "Father's Height (cm)" field. For example, if the father's height is 178 centimetres, type "178" into this field.
  • Select the child's gender from the available options. In this case, you mentioned that the child is male, so choose "Male."
  • Click on the "Calculate" button to process the information you provided.

The calculator will then use the parents' heights and the child's gender to estimate the child's future height. The result will typically be displayed on the screen, and it might be in centimetres or inches, depending on the calculator.

Unit conversion for height:

To convert height from US units (feet and inches) to metric units (centimetres), you can use an online height converter. Here are the steps to do it:

  • Feet: Enter "height" in the feet field.
  • Inches: Enter "height" in the inches field.
  • After you've entered the values, the converter tool should automatically display the equivalent height in metric units, which are centimetres (cm).
  • Note down the converted height in centimetres.
  • You can also convert the Metric unit to a US unit by putting the values of the matric unit in the respective field.

Benefits of Height calculator: 

Inaccuracy: Height calculators provide estimates based on statistical averages, but individual growth can vary significantly. They are only sometimes accurate and should not be used as a definitive measure of future height.

Genetic Variability: While parental height is a factor, genetics is complex, and a wide range of genetic and environmental factors influence height. Predicting height based solely on parental height can be imprecise.

Psychological Impact: Overemphasis on height prediction can create unnecessary stress or expectations for individuals, especially during adolescence when growth is highly variable.

Medical Consultation: If there are concerns about a child's growth or if an individual has specific medical conditions affecting their growth, it is essential to consult with a healthcare professional rather than relying solely on a height calculator.

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