Days Calculator
Calculate the total number of days between two dates.
Result
Select two dates and calculate
the number of days.
Calculate the total number of days between two dates.
The Days Calculator gives you the number of days between a start date and an end date as one simple number. It is useful for deadlines, leave planning, interest calculations, delivery estimates and countdowns where you only need the day count rather than a full breakdown.
This tool focuses on the day count only. The Date Difference Calculator also breaks the gap into weeks, months and years.
No. The end date must come after the start date, otherwise the tool will show a warning.
The Days Calculator returns a single number: the count of calendar days between two dates. It subtracts the start date from the end date and displays the result in days. It is the quickest way to answer questions such as "how many days until my exam" or "how many days between two invoices".
The count includes weekends and holidays because it uses calendar days.
From 15 August 2026 to 31 December 2026 there are 138 days.
If a bill is dated 5 March and the due date is 4 April, the gap is 30 days. That is useful for checking payment terms such as "net 30".
The Days Calculator only shows the total days. The Date Difference Calculator also gives a years, months and days breakdown.
The result is the end date minus the start date. Add 1 for an inclusive count.
Yes. It uses actual calendar dates, so 29 February is counted when it falls in the range.
Select today's date as the start date, or use the Countdown Timer for a live countdown to a future date.