(WHO Data) Infant Chart Percentile Calculator: Height, Weight, Head Circumference

Child Growth Calculator

0-2 Years Age Growth Percentile

Additional Tools For Parents

Eyes Color Calculator
Hair Color Calculator
Blood Type Calculator
Freckles Calculator
Dimple Calculator
PTC Taste Calculator
Tongue Rolling Calculator
Widow’s Peak Calculator
Hitchhiking Thumb Calculator
Cleft Chin Calculator
Attached EarLobe Calculator
Hemophilia Probability Calculator
Color Blindness Calculator
BMI Calculator

Toddler Growth Percentile Calculator

This tool helps parents track their toddler’s growth by comparing their height, weight, and head circumference to a population of children of the same age and gender. This calculator is designed specifically for toddlers up to 2 years of age, ensuring accurate and relevant growth assessments during this critical development period.

How to Use the Growth Percentile Calculator:

Select Gender:

Choose the biological sex of your toddler by selecting either “Boy” or “Girl”.

Enter Age:

Input your child’s age in months. For instance, if your child is 1 year and 6 months old, enter “18” months.

Input Measurements:

  • Height: Enter your toddler’s height in centimeters (cm).
  • Weight: Enter your toddler’s weight in kilograms (kg).
  • Head Circumference: Enter your toddler’s head circumference in centimeters (cm).


Click the “Calculate” button to see the results. The calculator will display the percentiles for height, weight, and head circumference, indicating how your toddler compares to others of the same age and gender.

Understanding the Results:

The percentiles indicate how your toddler’s measurements compare to other children of the same age and gender. For example, if your child’s height is in the 75th percentile, they are taller than 75% of children their age and gender and shorter than the remaining 25%.

Importance of Tracking Growth:

Height for Age:

Height for age is a measure that indicates how tall a child is compared to children of the same age and gender. Monitoring height for age helps in identifying growth patterns and potential issues such as stunted growth or tall stature. Consistent growth in height is a sign of good health and nutrition.

Medical Importance:

  • Stunted Growth: Consistently low height percentiles may indicate stunted growth due to chronic malnutrition or underlying health conditions.
  • Tall Stature: High height percentiles could be normal or indicate hormonal imbalances, such as excess growth hormone.

Weight for Age:

Weight for age measures a child’s weight compared to others of the same age and gender. This helps in assessing whether the child is underweight, average weight, or overweight. Regular monitoring ensures the child is gaining weight appropriately.

Medical Importance:

  • Underweight: Low weight for age percentiles might suggest malnutrition, feeding problems, or chronic illnesses.
  • Overweight: High weight percentiles can indicate overnutrition, which might lead to obesity-related health issues.

Head Circumference for Age:

Head circumference for age measures the size of a child’s head compared to others of the same age and gender. This is a crucial indicator of brain growth and development during the early years.

Medical Importance:

  • Microcephaly: Low head circumference percentiles can indicate microcephaly, which might be associated with developmental delays and neurological conditions.
  • Macrocephaly: High head circumference percentiles can indicate macrocephaly, which might be due to various conditions, including hydrocephalus.

Weight for Height:

Weight for height compares a child’s weight with their height, providing insights into their body proportionality. This is particularly useful for identifying acute malnutrition or overnutrition.

Medical Importance:

  • Wasting: Low weight for height percentiles can indicate wasting, a sign of acute malnutrition.
  • Overweight/Obesity: High weight for height percentiles can indicate overweight or obesity, necessitating dietary and lifestyle interventions.

How to Measure Your Toddler’s Growth at Home:


  • Lay your toddler on a flat, firm surface.
  • Gently stretch out your toddler’s legs. You may need a second person to help hold your toddler’s head and legs straight.
  • Use a measuring tape to measure from the top of the head to the bottom of the heel. Ensure the measuring tape is flat and not twisted.
  • Record your child’s length to the nearest tenth of a centimeter for the most accurate result.


  • Undress your toddler completely, including the diaper or to the bare minimum (idea is to be as accurate as possible, as child weight is on lower end, so any minor change can also have significant effects of results).
  • Weigh yourself first and record the weight.
  • Then, hold your toddler and weigh both of you together. Subtract your weight from the combined weight to get your toddler’s weight.

Head Circumference:

  • Wrap a flexible measuring tape around the widest part of your toddler’s head, just above the eyebrows and ears and around the back, where the head slopes out from the neck.
  • Take the measurement three times (your toddler may be wiggly) and use the largest measurement to the nearest tenth of a centimeter.

Common Questions About Growth Percentiles:

What are percentiles?

Percentiles are used to compare your child’s growth to a reference population. For example, if your child is in the bottom 30th percentile for height, they are taller than 30% of children their age and sex, and shorter than 70%.

Is a low or high percentile bad?

Not necessarily. Children grow at different rates, and a wide range of percentiles can be normal. The key is consistent growth over time.

When should I be concerned about my child’s growth?

If your child’s growth percentile changes significantly or falls below the 5th percentile or above the 95th percentile, consult your pediatrician for advice.

Data Source:

This calculator uses data from the World Health Organization (WHO) Child Growth Standards. These standards provide accurate and reliable growth measurements for children up to 2 years of age, ensuring that your child’s growth is compared against a robust and representative dataset.

Final Notes:

Understanding height, weight, and head circumference percentiles and monitoring growth patterns are essential for ensuring your child’s healthy development. Regular check-ups, a balanced diet, and proper nutrition play crucial roles in supporting your child’s growth and overall well-being.

For any concerns about your child’s growth, always consult a healthcare provider for professional advice and comprehensive evaluations.