Free Date Tools
Date math, done for you.
Count the days between two dates, work out an exact age, add or subtract days, or see how long until any holiday. No sign-up.
Calculators
Days Between Dates →
Count the exact number of days between any two dates.
Age Calculator →
Find an exact age in years, months, and days from a birth date.
Add or Subtract Days →
Add or subtract days, weeks, or months from any date.
How many days until…
49
until Halloween
75
until Thanksgiving
281
until Summer
197
until Easter
189
until Spring
155
until Valentine's Day
104
until Christmas
111
until New Year's Day
281
until Father's Day
239
until Mother's Day
261
until Memorial Day
186
until St. Patrick's Day
295
until Independence Day
359
until Labor Day
235
until Cinco de Mayo
Popular date countdowns
252
until May 22
253
until May 23
262
until June 1
292
until July 1
111
until January 1
80
until December 1
19
until October 1
354
until September 1
Everything date-related, in one place
DateCalcs is a small set of free date tools. Whether you need the exact number of days until a deadline, someone's precise age, or a countdown to the next holiday, each tool runs instantly in your browser — no account, no ads blocking the answer.