Date & Age Calculators
Exact age from birthday, days until any date, and the difference between two dates — all free and instant.
Instant results
Calculated in milliseconds — no loading, no server calls.
Works everywhere
Fully optimised for mobile, tablet, and desktop screens.
Private & free
No data stored. No sign-up. Completely free to use.
Frequently Asked Questions
Select the Age Calculator tab, then enter your birth month, day, and year and click Calculate My Age. The tool shows your exact age in years, months, and days, plus your birthday countdown, zodiac sign, and the day of the week you were born.
Click the Days Until tab and use one of the holiday quick-select buttons, or enter any custom date. The calculator shows exactly how many days, weeks, and months remain until that date.
Use the Date Difference tab. Enter a start date and an end date and click Calculate Difference. Results show the gap in years, months, weeks, and days, plus total hours, weekdays, and weekends in the range.
Your Western zodiac sign is determined by your birth date. For example, born between March 21–April 19 means Aries ♈. The Age Calculator shows your sign automatically after you enter your birthday.
Yes. In the Age Calculator, change the "Age as of" date to any past or future date. This is useful for legal age checks, school enrollment cutoffs, retirement planning, or historical calculations.