Date Calculators
Two quick tools: find the number of days between two dates, or add/subtract days from a date. Both run instantly in your browser.
Date Calculator Tools
Days Between Two Dates
Add or Subtract Days
Frequently Asked Questions
What is a date calculator used for?
A date calculator finds the number of days between two dates, or adds/subtracts a number of days from a starting date -- useful for deadlines, age calculations, project planning, and countdowns.
Does this calculator count the start and end date?
The days-between calculator counts the number of full days between the two dates you enter, not including the start date itself.
Is this date calculator free to use?
Yes. It's completely free, works instantly in your browser, and requires no sign-up or account.