Date calculator

Days between two dates.

Pick a start and an end. We'll count the days, weeks, months, and years in between.

From To

0 days

Select a date range to begin.

0 weeks —

0 months —

0 years —

0 hours —

About this tool

Compare two dates and see the interval in days, weeks, months, years, and hours. Presets cover common periods such as the previous week, month, year, and year to date. The calculation includes both the start and end dates, which is useful for inclusive schedules, travel periods, event windows, and simple planning checks.

How to use it

Choose the From and To dates, or start with one of the preset ranges.
Check the total number of days and the equivalent units.
Adjust either date to compare another period.

Good to know: The total is inclusive of both boundary dates; subtract one day if your use case excludes the starting date.