Last updated: October 6, 2026
Age Calculator
Exact age in years, months & days — plus days between any two dates and live event countdowns.
When were you born?
Pick a birthdate — your exact age appears instantly.
Defaults to today. Set any date to see past or future age.
You are
31 yrs 3 mo 22 days
Born on a Thursday · turning 32 in 251 days
Total days
11,437
Total weeks
1,633
Total months
375
Total hours
274,488
More Than Birthdays: What Date Math Is For
Calendar age answers eligibility — old enough to drive, vote, sign, retire. But elapsed days answer planning: how long until the wedding, how many weekdays a project really has, whether a notice period lands before a deadline. Same arithmetic, different questions, and getting either wrong by hand is embarrassingly easy around month boundaries and leap years.
Two rules keep date math honest. First, month lengths vary — “one month later” means different day counts in February versus July, so exact age needs borrow-and-carry logic, not division. Second, weekdays matter for work: 30 calendar days hold ~22 working days, and the days-between tab splits them automatically. Milestone ages shaping money decisions? The paycheck calculator translates working years into take-home pay.
Exact Age
Years, months, days + totals alive.
Private Dates
Birthdates stay on your device.
Live Countdowns
Ticking seconds, zero uploads.
Frequently Asked Questions
How do I calculate my exact age?
Enter your birthdate above — you get years, months, and days, plus total days, weeks, months, and hours alive, the weekday you were born, and days until your next birthday. Everything updates instantly.
How many days are there between two dates?
Switch to the "Days between" tab and pick both dates — order does not matter. You get total days, full weeks, business weekdays vs weekend days, and an approximate month count, useful for projects, notice periods, and timelines.
How do leap years affect age calculation?
Leap days count like any other day in totals. Only Feb 29 birthdays are special: in non-leap years the next-birthday counter targets March 1. Year/month breakdowns always resolve correctly regardless.
How old do I need to be to work, drive, or vote in the US?
Common thresholds: 14–16 for limited work (varies by state), 16–18 for a driver's license, 18 to vote and for most contracts, 21 for alcohol, 25 for lower car-rental rates, 59½ for penalty-free retirement withdrawals. Set the "age on" date to check eligibility on a specific day.
How many days until Christmas 2026 / New Year 2027?
Open the Countdown tab and tap a holiday chip — Christmas, New Year's, Valentine's, July 4th, and Halloween are one tap away with a live ticking display. Any custom event works the same way.
Does the countdown update live?
Yes — days, hours, minutes, and seconds tick every second entirely in your browser. Keep the tab open as an event timer; nothing uploads anywhere.
Is my birthdate private here?
Completely. All math runs locally in your browser — no dates are uploaded, stored, or tracked.
What is the difference between age in years vs total days?
Years/months/days is calendar age (how birthdays count). Total days is elapsed time — the number timelines, benefits, and anniversaries actually run on. Both appear in the results.
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