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Calixo

Date & Time Calculators

Ages, date differences and calendar math.

Date & Time

Age Calculator

Find your exact age in years, months and days from your date of birth — down to the total number of days you've been alive.
Date & Time

Date Difference Calculator

Find the exact number of days, weeks, months and years between any two dates — useful for durations, deadlines and everything in between.
Date & Time

Days Until Calculator

Count down the days, weeks and months remaining until any future date — perfect for deadlines, holidays and countdowns.
Date & Time

Add or Subtract Days Calculator

Add or subtract any number of days from a date and instantly find the resulting date and day of the week.