Add Days Calculator - Add or Subtract Days from Any Date

Calculate new dates by adding or subtracting days from any date with our easy-to-use calculator tool.

Calculation Results

Enter date and days to calculate, then click Calculate to see results

Our Add Days Calculator assists you in quickly determining a future date or past date by adding or subtracting days from a specified date. Whether you are calculating future project deadlines, delivery dates, or scheduling events, this user-friendly date calculator add days will produce results in no time.

You just need to enter your base date, the number of days to add or subtract, and the Add Days Calculator will provide you with the new date without any counting. You can also select to include or exclude the last date.

Add Days Calculator

How to use the Add Days Calculator

1.
Select calculation type: - Choose to either Add Days or Subtract Days.
2.
Enter base date: - Use the date selector to choose your base date.
3.
Add number of days: - Enter how many days you want to add / subtract.
4.
Include or Exclude last day: - Check the box if you want the final day counted in your result.
5.
Click on 'Calculate' button: - The calculator will display the new date, and how long that is in days, weeks, and months.

This add date calculator will save you from doing complex calculations by hand, and ensures you always calculate things correctly, including leap year calculations and whether days fall on a weekend.

Why use Our Add Days Calculator?

Instant Results: - Get updated dates instantly.
Add or Subtract: - Change from adding days to subtracting and back to adding things easily.
Working Days Support: - If you only need to add working days, it will help you intelligently switch working days skipping weekends as needed.
Accurate Calculations: - Including leap year calculations, weekends, and holidays.
Mobile Friendly: - Works nicely on any mobile device.
Completely Free: - You may use for free anytime without limitations.

This may be perfect for students, professionals, or anyone needing to manage things such as schedules, payments, or delivery timeframe.

Example:

Add 45 days to today's date to find your assignment deadline.
Subtract 10 days from a given date to find a project's start date.
Use it to add working days when planning office schedules or HR tasks.
Combine it with the Add to or Subtract From a Date feature to manage long-term project planning.

Whether you're scheduling appointments or calculating event durations, the Add Days Calculator makes it effortless.

Features of the Add to or Subtract From a Date Tool

Add or subtract days, weeks, or months easily.
Option to include/exclude end date.
Displays total duration in days, weeks, months, and years.
Auto-detects start day, leap year, and current time period.
User-friendly layout with quick-select options (7, 30, 90, 365 days).

This smart date calculator add days function ensures you always have accurate date results for any time range you choose.

The Add Days Calculator is the easiest way to find any date in the past or future. Whether you want to plan vacations, schedule tasks, or calculate durations, our date calculator add days tool gives instant, accurate, and reliable results - all in one place.

Try it now and make every date calculation faster, smarter, and simpler!

FAQs

The Add Days Calculator is a free web-based calculator that allows you to add or subtract any number of days from a certain date. This is a useful tool if you're trying to find out when an event will take place in the future (or past).

Enter a date, then choose "Add" or "Subtract," enter a number, and click Calculate. The result will display your new date almost instantly, along with explanations of the results.

Yes. The calculator supports add working days mode, letting you skip weekends to get business-day-based results.

Absolutely. The add date calculator recognizes leap years and applies the proper calculations to achieve a perfect result.

Yes - The Add Days Calculator is 100% mobile-friendly and will work properly from any browser or screen size.

Yes, the Add Days Calculator is completely free to use. You can use the Add to or Subtract From a Date Calculator as many times as you'd like with no requirement for a signup.