Date Calculator: Add or Subtract Days from Date

Find out a specific date date in the future or past, based on a specific number of days, months or years. When organizing meetings, events, holidays, planning something important, or returning an item in the correct amount of time this online calculator is here to help.


How to use the date calculator?

Start by selecting the date from which you want to start the calculation. Then based on your needs, add the number of years, months, weeks or days to the in the respective fields. Lastly click calculate. The online calculator will provide instantly the result with the the new date.

Key use cases of this date calculator

  • Add days to date
  • Subtract days
  • What is 60 days from today
  • What is 6 months from today?
  • Identifying what day will it be in X days*?

* Days, weeks, months and years from a given date.


Date Calculator - Days Between Two Dates

The date calculator calculates the difference between two dates. It can also add and subtract from a date. Enjoy this free calculator by computing the duration in days, months or years with ease.


How to use the date calculator?

Start by configuring the start and end date of the duration between which you want to calculate the time interval. If you want to add the last date in the calculation, then click on the add last day button. If you're calculating let's say the age of a person, you can simply add the start date as the date of birth, then click today in the end period, and lastly click calculate.

You will get instantly the result, in days, and as alternative you can find the time calculation in weeks, months or years, plus hours and minutes.

The calculator allows to:

  • Count the days toward an event The calculator will instantly tell you the days difference between dates up to that particular event.
  • Count the days since a specific date. Let’s say you want to count how many days have passed since your birthday.
  • Check duration: To check the duration between two dates. For example if you want to count how long the school year will be.

For all these situations, the free online date calculator will be helpful. It even has a fourth functionality. To add or subtract days, which we will discuss in the next section.



Date formats

Depending on where your location is in the world, the format of the date might be different. The place where the Month, Day, or Year stands in a date is formatted as follows:

  • US format is mm/dd/yyyy
  • EU format is dd/mm/yyyy
  • International format is yyyy-mm-dd.

If you would like to add or subtract dates from a particular date, this calculator will do the work.