Date Calculator Between Two Dates

Count Days

Start date

End date

including end date in calculation

This page works as a date calculator between two dates and a date to date calculator. Enter a start date and an end date to see the exact number of days between dates in a fast, simple format.

If you are looking for a date duration calculator, date difference calculator, dates between dates calculator, days calculator between two dates, or days between dates calculator, this tool is built for that exact job.

FAQ

How does this date difference calculator count days?: It compares the selected start date and end date, then shows the total day gap between them. You can also choose to include the end date in the final count.
Can I use this as a date duration calculator?: Yes. This between two dates calculator is useful for measuring durations for trips, projects, contracts, deadlines, and any other date range.

Mode d'emploi

Choose a calculation mode, enter one or more dates, and the result updates immediately.

Pick two dates in the Date Difference section to compare them.
Use Date Arithmetic to add or subtract days, weeks, months, or years from a base date.
Check the weekday labels to confirm the target falls on the day you expect.

Conseils

Inclusive days count both the start date and the end date.
Month and year calculations keep the same day when possible, and clamp to the last valid day when needed.