Days Between Dates Calculator — Find the Duration Between Any Two Dates
Counting the exact number of days between two dates by hand is deceptively fiddly — months have different lengths, leap years add a day to February, and it's easy to be off by one depending on whether you count the final day. Our Days Between Dates Calculator removes the guesswork: pick a start date and an end date, and see the precise gap instantly.
The result is shown three ways — total days, a weeks-and-days breakdown, and an approximate number of months — so you can read the duration in whatever unit makes sense for your situation. An optional "include the end day" toggle lets you switch between an exclusive count (the gap between the dates) and an inclusive count (the total number of days in the range), which matters for things like counting vacation days or billing periods.
Common uses include: counting down the days until a wedding, holiday, deadline, or due date; working out how long ago something happened; calculating the length of a project, lease, or subscription period; counting days for travel itineraries and visa stays; and figuring out how many days are left in a notice period. Because the calculation is based on calendar dates, it correctly accounts for leap years and varying month lengths automatically.
How to use the Days Between Dates Calculator
- Select the start date using the date picker.
- Select the end date.
- Instantly see the total number of days, plus weeks and months.
- Tick "include the end day" if you want the count to include both dates.