What's on the list
Enter someone's date of birth and the calculator works out their next birthday, then counts their life up to that day: days, weeks and hours alive, heartbeats, breaths, blinks, words spoken, laughs, years spent asleep, how far they've walked and how far Earth has carried them around the Sun. The time-based figures are exact. Everything about the body uses published averages that change with age, so a baby's fast heartbeat is counted differently from an adult's.
Milestone birthdays
Some birthdays deserve a closer look. Each of these pages has the typical figures for that age, the life milestones that fall just before and after it, and gift ideas.
Turn it into a present
The same numbers make a thoughtful gift. The poster maker turns them into a print-ready A4 poster to frame, and the card maker makes a folding birthday card with the stats inside and space for your message. Both count up to the birthday itself.
Questions
Is the birth date I enter saved?
No. This page is made for looking up someone else's birthday, so nothing you type is stored or sent anywhere, and it won't replace your own date on the rest of the site.
Can I use it for my own birthday?
Of course. For your own numbers counting live, try the full life tally.
How accurate are the figures?
Days, weeks, hours, full moons and distances are exact counts or measured rates. Heartbeats, breaths, blinks, words and laughs are averages for a typical person, so treat them as a sense of scale rather than a measurement.