Child Growth Calculators — Parenting
Tracking a child’s development: growth percentiles, baby weight gain, sleep schedules by age, clothing sizes, and screen time. Percentiles describe position in a reference population, so a consistent curve matters more than any single figure.
All Child Growth Calculators
Generate age-appropriate sleep schedules with nap times and bedtime recommendations.
Track weekly baby weight gain against healthy ranges by age.
Plot your child height and weight on WHO/CDC growth charts by age and gender.
Calculate recommended screen time limits by age and track daily usage against guidelines.
Determine children clothing size from height, weight, and age for US, UK, and EU brands.
Calculate daily calorie needs for toddlers aged 1-3 from weight and activity level.
Find your toddler shoe size from foot length in US, UK, and EU sizing.
About Child Growth Calculators
Tracking a child’s development: growth percentiles, baby weight gain, sleep schedules by age, clothing sizes, and screen time. Percentiles describe position in a reference population, so a consistent curve matters more than any single figure.
Whether you need to solve a one-time problem or verify your own calculations, these free tools cover the most common child growth scenarios. All results are computed in your browser — no data is sent to any server.
What You Can Calculate
This section includes 7 tools: Baby Sleep Schedule Calculator, Baby Weight Gain Calculator, Child Growth Percentile Calculator, Child Screen Time Calculator, Kids Clothing Size Calculator, Toddler Calorie Needs by Age, Weight & Activity, Toddler Shoe Size Calculator. Each calculator is free to use with no signup required.