Free tools
Little calculators for new parents
Quick answers to the questions every parent Googles: due dates, feeds, sleep and growth. Free to use, no sign-up, nothing stored.
Due date calculator
Estimate your baby’s due date from your last period, conception, or IVF transfer.
Open →Baby feeding calculator
How much milk a bottle-fed baby needs each day and per feed, based on weight.
Open →Baby sleep needs calculator
How many hours of sleep your baby needs by age, split into naps and night.
Open →Growth percentile calculator
Find your baby’s weight, length, or head percentile on the WHO growth charts.
Open →Corrected age calculator
For babies born early. Work out your baby’s corrected age from their due date.
Open →
Calm days, gently remembered.
Start your baby's story with Plumi. Free to begin, yours to keep.