Date Addition Calculator
Find the date that is a number of days, weeks, months or years after a given date.
—Result date
—Day of the week
—From today
—ISO date
—Week number
—Calendar days between
● Everything is calculated in your browser. Nothing is sent anywhere.
How it works
Years and months are added first, then weeks and days. When the day doesn't exist in the target month, the last day of that month is used: 31 January + 1 month = 28 February (29 in a leap year). With “business days only”, weekends are skipped when counting the days.
FAQ
What date is 90 days from today?
Leave today's date as start, set 90 days, and read the result. 90 days is not the same as 3 months.