Plumi Baby Calculators: Wake Window, Nap Schedule, Feeding & Growth

Free baby calculators: wake windows, nap schedule, sleep by age, formula amounts, WHO growth percentiles, corrected age, due date.

Seven free baby calculators for new parents, right in your browser toolbar. Work out wake windows and a nap schedule for today, check how much sleep your baby needs, estimate formula amounts by weight, find WHO growth percentiles, calculate corrected age for a premature baby, estimate your due date, and see if your baby is ready for solids. No account, no ads, and nothing you enter leaves your browser. WHAT'S INSIDE • Wake Window Calculator and Nap Schedule Generator: enter your baby's age and wake-up time to see today's nap times, wake windows and bedtime, from newborn to 3 years. Optional nap reminders notify you 10 minutes before each nap window. • Baby Sleep Calculator: typical total sleep, night sleep and daytime naps by age, based on AASM and NSF ranges. • Baby Feeding Calculator: daily and per-feed formula amounts from your baby's weight, in ml or oz, kg or lb. • Baby Growth Percentile Calculator: weight, length and head circumference percentiles using the WHO Child Growth Standards, for boys and girls from birth to 5 years. • Corrected Age Calculator: adjusted age for babies born early, from the due date or gestational age at birth. • Pregnancy Due Date Calculator: your due date from last period, conception or IVF transfer, with weeks pregnant and trimester dates. • Ready for Solids Quiz: four quick questions on age and the three readiness signs. MADE FOR Parents, parents-to-be, caregivers and nannies who want quick answers during a busy day. Each calculator matches the free tools at https://plumi.app/tools/ PRIVATE BY DESIGN Every calculation runs locally. No sign-up, no tracking; your last inputs are stored only on this device so the extension opens where you left off. TRACK IT AUTOMATICALLY WITH PLUMI Plumi is a baby tracker for iPhone and Apple Watch: feeds, sleep, diapers, pumping, solids, growth and more, with WHO growth charts and caregiver sharing. Everyday tracking is free, with no ads. https://plumi.app/ Results are estimates based on typical ranges, not medical advice. Talk with your pediatrician about your baby's sleep, feeding and growth.