You need calendar days for planning, a trip, an event, a deadline, or a simple date interval.
Days Between Dates Calculator
Calculate days between two dates, inclusive day counts, and rough week estimates locally in your browser.
Start here
Choose a start date.
Browser-first
Your selected dates are calculated locally in your browser and are not uploaded to a server.
Useful for
Count days until a deadline
Days between7 days
Including both dates8 days
About1.0 weeks
Quick answer
Count the days between two calendar dates
Select a start date and end date to see the ordinary elapsed-day count, an inclusive count that includes both endpoints, and a rough week equivalent.
It counts calendar days rather than business days and does not apply holidays, time zones, work schedules, or legal day-count rules.
Age Calculator: Calculate age in years, months, and days from a birth date to a target date.
About this tool
Calculate days between two dates, inclusive day counts, and rough week estimates locally in your browser.
Your selected dates are calculated locally in your browser and are not uploaded to a server.
How to use it
- Choose a start date.
- Choose an end date.
- Read the day count, inclusive count, and week estimate.
Common use cases
- Count days until a deadline
- Calculate trip length
- Check project or event duration
- Compare inclusive and exclusive date counts
How to Read the Result
Date calculations can mean slightly different things depending on the task. This page shows both the gap between dates and the inclusive count so you can choose the number that fits your use case.
| Result | What it means | Good for |
|---|---|---|
| Days between | The difference from one date to the other | Deadlines, elapsed time, and waiting periods |
| Including both dates | Counts the start date and end date as included days | Trip length, event duration, and schedules |
| Weeks | A quick day count divided by 7 | Rough planning and comparisons |
FAQ
Does it include the start and end dates?
The tool shows both the plain day difference and an inclusive count that includes both dates.
Can I count backward?
Yes. The result uses the absolute difference between the two selected dates.
Are my dates uploaded?
No. The calculation runs in your browser.