BabyCalculator
Professional baby growth and care tools based on WHO/CDC standards
BabyCalculator Overview
BabyCalculator offers a suite of professional baby tools designed to help parents track their baby's growth, developmental milestones, and daily care needs. All calculations are based on the latest WHO/CDC standards, ensuring accurate and reliable results. The platform prioritizes privacy by performing all calculations locally in your browser, with no data uploaded to servers. Target users include parents, caregivers, and healthcare professionals looking for easy-to-use, scientifically validated tools to monitor baby development. The comprehensive toolset covers growth percentiles, feeding schedules, vaccination tracking, sleep patterns, and even fun predictions like eye color probability.
BabyCalculator Screenshot

BabyCalculator Official screenshot of the tool interface
BabyCalculator Core Features
Growth Percentile Calculators
Track your baby's growth with precision using weight, height, and head circumference percentile calculators based on WHO/CDC growth charts. These tools help you understand how your baby compares to peers and monitor development trends over time.
Developmental Milestone Checker
Stay informed about expected developmental milestones for your baby's age. This feature helps parents identify typical developmental progress and know when to consult pediatricians about potential concerns.
Daily Care Calculators
Practical tools including milk intake estimators, diaper needs calculators, and sleep schedule generators help parents plan and optimize daily baby care routines based on scientific recommendations.
Corrected Age Calculator
Essential for parents of preterm babies, this tool adjusts for early birth to provide accurate developmental tracking and milestone expectations based on adjusted age rather than chronological age.
Privacy-First Design
All calculations are performed locally in your browser with no data sent to servers, ensuring complete privacy for your family's sensitive health information.
Comprehensive Pregnancy Tools
From due date calculators to fetal weight estimators, these features support expecting parents with scientifically validated pregnancy tracking tools.
Vaccination Schedule
Customized vaccination recommendations based on your country's guidelines help ensure your baby stays on track with important immunizations.
Fun Predictions
Lighthearted tools like the eye color predictor add an element of fun to baby tracking while still being based on simplified genetic models.
BabyCalculator Use Cases
Tracking Growth Patterns
Parents can regularly input their baby's measurements to track growth trends over time, identifying if their child is following consistent percentiles or if there are any concerning changes that might warrant pediatric consultation.
Planning for Newborn Care
Expecting parents can use the diaper calculator and feeding estimators to prepare for their newborn's arrival, ensuring they have adequate supplies and understanding of feeding needs.
Monitoring Preterm Development
Parents of premature babies can use the corrected age calculator followed by growth and milestone tools to get accurate assessments of their child's development relative to adjusted age rather than birth date.
Vaccination Planning
Parents can reference the vaccination schedule to ensure their baby receives all recommended immunizations at the appropriate times, customized to their country's guidelines.
Sleep Schedule Optimization
The sleep schedule calculator helps parents establish healthy sleep patterns appropriate for their baby's age, potentially improving rest for both baby and parents.
How to Use BabyCalculator
Select the appropriate calculator from the 18 available tools based on your needs (growth tracking, daily care, pregnancy, or fun predictions).
Enter the required information such as your baby's age, measurements (weight/height/head circumference), or other relevant details.
For preterm babies, first use the Corrected Age Calculator to determine adjusted age before using other growth tracking tools.
View your instant results including percentiles, recommendations, or predictions based on WHO/CDC standards.
Use the information as guidance for your baby's care, remembering to consult healthcare professionals for medical advice.