About this date calculator
A simple, accurate date calculator for planning and deadlines
The FreeConvertors date calculator solves two everyday problems. First, it finds the exact duration between two dates, reported as total days, weeks, months and years plus a clean years/months/days breakdown. Second, it computes what date you get when you add or subtract days, weeks, months or years from a chosen starting point.
Students use it to count down to exams, professionals use it to track project deadlines and contract periods, HR teams use it for notice periods, and travellers use it to plan trip lengths. Everything runs locally in your browser with no file uploads.
How to use the date calculator
To measure a duration, pick a start date and an end date and read the result instantly. To add or subtract, choose a base date, type an amount, select a unit (days, weeks, months or years), choose Add or Subtract, and the result date appears immediately.
Why combine it with the time converter?
Date and time tasks often go together. If you also need to convert hours, minutes and seconds, open the FreeConvertors time converter. For international scheduling, the time zone converter compares cities around the world in one view.