Calculate weeks between dates.
DifferenceOpen
Days Between Dates Calculator
Quick answer
If start date is 1 Jan 2026 and end date is 15 Mar 2026, the answer is 73 days.
Enter your values
Days
73days
The length of time this runs for, in days.
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About the Days Between Dates Calculator
Enter a start date and an end date to find the number of days between them. It is handy for notice periods, project timelines, loan periods and counting down to an event.
The count runs from the start date to the end date, so the end date itself is not counted.
Things to keep in mind
- If you want to count both the first and the last day, add 1 to the result.
- Leap years and different month lengths are handled for you.
- To count only working days, use the Workdays Estimate calculator.
DATE & TIME GUIDE
A quick guide to Days Between Dates
Use it to get an accurate days in seconds — free, with no sign-up.
Instant results
See your days the moment you enter your numbers.
Free, no sign-up
Every calculator here is free to use, with no account required.
Accurate & transparent
The same standard formula runs on our server for every calculation.
How to Use the Days Between Dates Calculator
1
Pick Start date
Provide your start date.
2
Pick End date
Provide your end date.
3
View Your Results
Get your days instantly, calculated on our server.
What is Days Between Dates?
This date & time tool works out your days instantly, so you don't have to do the math by hand.
“One quick calculation, so you always know your days before you decide.”
What Affects Your Days
Your days depends on the values below.
Start date
Changing your start date changes your days.
End date
Changing your end date changes your days.
Example Result
Here's what you can expect from a days between dates calculation:
- Days
- 118 days
Frequently Asked Questions
- How to calculate days between dates?
- Fill in start date and end date in the Days Between Dates Calculator above and your days is calculated instantly. Change any value to see how the result responds.
- What does an example days between dates calculation look like?
- If start date is 1 Jan 2026 and end date is 15 Mar 2026, the answer is 73 days.
- Is this calculator free to use?
- Yes — every calculator on this site is completely free, with no sign-up or account required.
- How accurate is this calculator?
- It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.
- Is my data saved anywhere?
- No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.
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