Pinpoint precise · free · private
Age calculator
Your exact age — to the day — plus the versions of it nobody ever shows you: total days, total weeks, total hours.
You were born on a –. Your next birthday is in – days — you'll turn –.
Every dot a week of your life so far — the ringed one is this week.
Your whole life as a calendar of weeks — free, in ten seconds.
Questions
How is my exact age calculated?
From your date of birth to today in your timezone, using true calendar arithmetic: real month lengths and every leap year are counted, not 365.25-day approximations. The result is exact years, months and days — plus your total in days, weeks and hours.
I was born on February 29. How does that work?
You age on February 29 when it exists and on February 28 in common years. The calculator handles this exactly — your next birthday countdown accounts for leap years automatically.
What is chronological age?
Simply the time elapsed since your birth — what this calculator measures precisely. It differs from "biological age", an informal estimate of how old your body seems based on health markers.
Is my date of birth stored anywhere?
Only in your own browser (so the page remembers you); it is never sent to any server. The math runs entirely on your device.