Free baby growth percentile calculator using WHO and CDC charts for children 0–5 years
Personalised bedtime routines for children aged 6 months to 8 years, delivered in 3 minutes
Stage
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Founded
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Pricing model
Free
Paid
Pricing
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The Pack: €39 (one-time); Nora Live voice consultation: €89 (includes personalised routine output); 14-night extended tracker available as add-on. Prices shown: EUR €39, GBP £35, USD $45, SEK 449kr, DKK 299kr, CHF in local currency, NOK in local currency.
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
Personalised bedtime routine generated from 5-question quiz
7-night check-in tracker with daily emails
Visual routine chart for children to follow
Parent coaching guide with resistance scripts
Sleep environment checklist
Day-8 personalised sleep report
Nora AI sleep consultant with 25-minute voice consultation
5 nights of post-consultation chat support
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
Science-backed routines grounded in paediatric sleep research from DGKJ and German Sleep Society
Personalised to each child's age, challenges and schedule—not generic advice
7-night money-back guarantee with tracked effort
No subscription, no app, no waiting list—available instantly 24/7
Optional AI sleep consultant available at any time, including 2am
BabyPercentile
Lunio