Add Days to Date
Add or subtract any number of days from a date and get the exact new date and weekday — free, fast and private.
Pick a date and click Calculate New Date.
How to use Add Days to Date
- Pick your starting date.
- Enter the number of days to add.
- Click Calculate New Date.
- See the new date and its weekday.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
Is Add Days to Date free?
Yes, it is 100% free with no sign-up.
Can I subtract days too?
Yes. Enter a negative number, for example -30, to go back 30 days.
Does it handle month and year changes?
Yes. It uses real calendar math, so adding days across months, years and leap days works correctly.
What weekday will the new date be?
The result shows the weekday name, for example Monday, alongside the date.