Days Between Dates Calculator
Enter a start and end date to see exactly how many days and weeks lie between them โ useful for a deadline, contract duration or countdown date.
Result
Fill in the fields to see your result.
Formula
Days = end date โ start date
The calculator counts the number of whole calendar days between the two dates, regardless of your deviceโs timezone settings, by comparing both dates as local calendar dates.
Worked examples
1 January 2026 to 31 December 2026
โ 364 days.
Common mistakes
- Counting the start date itself as a full day, making the count 1 too high.
When to use it
- Calculating the duration of a contract or rental period.
Frequently asked questions
Does the calculator count both the start and end date?
The result is the difference between the dates; add 1 yourself if you want to count both dates inclusively.
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