ALL TOOLS

Every calculator, one place.

Free, instant, no sign-up. Pick what you need right now.

Pregnancy

Pregnant woman checking her due date on her phone
Pregnancy · Tool

Due date calculator

Estimate your due date from your last period, conception date or IVF transfer date, adjusted for cycle length.

Woman checking her ovulation and fertile window on her phone
Fertility · Tool

Ovulation calculator

Find your fertile window, ovulation day and next period from your last period and cycle length.

Woman using the BabyQuil contraction timer on her phone to time and track labor contractions
Labor · Tool

Contraction timer

Time how long contractions last and how far apart they are, to know when it's time to go in.

Pregnant woman and her partner packing a hospital bag together
Birth prep · Checklist

Hospital bag checklist: what you actually need

The realistic list, not the 60-item version that scares people off.

Baby

Mother measuring her toddler's height against a growth chart on the wall
Baby growth · Tool

Growth percentile calculator

See where weight, length, and head size fall on the WHO growth charts.

Parent gently holding a sleeping baby in a cozy armchair at night
Baby sleep · Tool

Sleep window calculator

Age-appropriate wake windows, nap counts and total sleep from newborn to toddler.

Illustration of a child growing from tummy time to sitting, walking and drawing
Development · Tool

Milestone tracker

What most children can do at each age, from 2 months to 5 years, across four areas of development.

Names

Parents reading a baby names book together on the couch
Names · Tool

Baby names finder

Search names by gender, origin, meaning and style, and save your favorites as you browse.

TRACK IT ALL

These tools give you today's answer. BabyQuil remembers all of them.

Save your due date and growth history in one place with the app — your name shortlist stays saved right here on this site.

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