Free baby growth percentile calculator using WHO and CDC charts for children 0–5 years
Track IEP therapy minutes weekly to ensure your child receives promised services
Stage
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Founded
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Based in
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Pricing model
Free
Paid
Pricing
Not given
Founding families: $19 one-time (first 100 families or until December 31, 2026). After founding period: $29, later $59.99. 14-day money-back guarantee.
Key features
WHO Child Growth Standards charts for ages 0–60 months
CDC 2000 growth charts available from age 24 months
Weight, length/height, head circumference, and weight-for-length measurements
Separate growth curves for boys and girls
Corrected age calculation for premature babies born before 37 weeks
Private browser-only growth log with no server upload
Trend alert for faltering growth based on UK NICE guidance
Gain-per-day check between measurements
Works offline after initial page load
Weekly check-in with one question per service
Automatic calculation of missing minutes
One-page printable summary for IEP meetings
Ready-made email to request school's service log
Works in English and Spanish
Voice and text input options
Private backup file for phone transfers
No installation needed, works on any browser
Share summary with family members
Customizable summary periods
What makes it different
No ads, no account, no data collection—measurements never leave your browser
Official WHO LMS parameters and CDC data with published formulas shown explicitly
Handles measurement precision automatically with date-of-birth mode for young babies
Applies WHO's 0.7 cm adjustment for lying vs standing measurement method at 24 months
Cross-checked data with automated test suite validating WHO medians and clinical thresholds
Never asks for child's name or IEP document for privacy
BabyPercentile
MinutesKept