Height Calculator

Predict adult height using various methods including mid-parental height, growth charts, and bone age calculations. Perfect for parents and healthcare professionals.

Height Prediction

Prediction Method:

Child Information

Gender:

Current Age:

Parent Heights

Father's Height:

Mother's Height:

Quick Examples:

Height Prediction Results

Enter the required information to see height predictions

How to Use

Select the prediction method that best fits your available information.

Enter the child's gender, age, and current height (if required by the method).

For mid-parental method, enter both parents' heights. For bone age method, enter bone age from X-ray.

View the predicted adult height range and growth projection chart.

Understanding Height Prediction

Prediction Methods

Mid-Parental Height

Uses both parents' heights to predict child's adult height.

Boys: (Father's height + Mother's height + 13cm) ÷ 2
Girls: (Father's height + Mother's height - 13cm) ÷ 2

Growth Chart Method

Projects based on current height percentile.

Assumes child will maintain their current growth percentile through adulthood.

Accuracy Factors

Genetics (60-80%)

Primary factor determining height potential

Nutrition (10-20%)

Adequate nutrition for optimal growth

Health & Environment

Medical conditions, sleep, exercise

Growth Patterns

Infancy (0-2 years): Rapid growth, 25cm in first year, 12cm in second year

Childhood (2-10 years): Steady growth of 5-7cm per year

Puberty (10-16 years): Growth spurt, 8-12cm per year at peak

Applications

Medical & Healthcare

• Pediatric growth assessment
• Growth disorder screening
• Treatment planning
• Nutritional counseling

Parental Planning

• Future clothing sizes
• Sports participation
• Bedroom furniture planning
• Educational considerations

Sports & Activities

• Athletic potential assessment
• Sport-specific training
• Equipment sizing
• Career guidance

Example Calculations

Example 1: Mid-Parental Height (Boy)

Father's height: 180 cm (5'11")

Mother's height: 165 cm (5'5")

Child: Male

Predicted height = (180 + 165 + 13) ÷ 2 = 179 cm (5'10.5")
Range: 174-184 cm (5'8.5" - 6'0.5")

Example 2: Mid-Parental Height (Girl)

Father's height: 175 cm (5'9")

Mother's height: 160 cm (5'3")

Child: Female

Predicted height = (175 + 160 - 13) ÷ 2 = 161 cm (5'3.5")
Range: 156-166 cm (5'1.5" - 5'5.5")

Example 3: Current Height Projection

Child: 10-year-old boy

Current height: 140 cm (75th percentile)

If maintaining 75th percentile: 178 cm (5'10")
Adult 75th percentile for males

Frequently Asked Questions

How accurate are height predictions?

Height predictions are estimates with typical accuracy of ±5-8 cm (2-3 inches). Mid-parental height method is about 70% accurate, while bone age methods can be more precise.

When do children stop growing?

Girls typically stop growing around age 14-16, while boys continue until age 16-18. Growth plates close when puberty ends, determined by hormonal changes.

Can nutrition affect final height?

Yes, proper nutrition is essential for reaching genetic height potential. Malnutrition can reduce final height by 5-10 cm, while optimal nutrition helps achieve maximum genetic potential.

What is bone age and why is it important?

Bone age is determined by X-ray of the hand/wrist, showing skeletal maturity. It's more accurate than chronological age for height prediction, especially during puberty.