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Business Day Calculator to Calculate Working Days Between Dates

Calculator Preferences
Business Day Calculator Sign
Business Day Calculator

This free online business days calculator will instantly calculate the number of business days between two dates, or calculate a past or present date by adding or subtracting a specified number of working days to or from a starting date.

Includes built-in holiday date calculations to exclude holidays of your choosing. Plus you can even choose which days of the week you want the calculator to count -- which opens up the calculator for other interesting uses!

Learn More

Selected Data Record:

A Data Record is a set of calculator entries that are stored in your web browser's Local Storage. If a Data Record is currently selected in the "Data" tab, this line will list the name you gave to that data record. If no data record is selected, or you have no entries stored for this calculator, the line will display "None".

DataData recordData recordSelected data record: None
Business days settings
My business days days of the week:

Business days of the week settings:

If your business or working days are not Monday to Friday (the default settings), click the description in this row to set your own custom business days of the week.

Starting date:

Starting date:

Select the month and day and enter the 4-digit year of the date you want the working days calculator to start counting at (or tap the Today button to set the date to today's date). Note that the starting year must be less than 4000.

Plus or minus business days from start date:

If you want the business days calculator to calculate a date by adding or subtracting a number of business days to or from the starting date, tap the top radio button option, select + or - from the menu on the next line, and then enter the number of days to add or subtract.

Or, if you want the calculator to calculate the number of business days between two dates, click the bottom radio button option, and then in the 2nd row beneath this line select the month and day and enter the 4-digit year of the date you want to stop counting at. Note that the ending year must be less than 4000, and the ending date must be later than the starting date.

from start:from start date:business days from start date:
Exclude holidays

Exclude holidays:

If you want the calculator to exclude certain holidays if they fall on a business day, tap the "+" icon to open the list of holidays and then check all options and holidays that apply. You may also add up to two holidays of your own choosing. Please note that the holiday dates are calculated, so be sure to double check the results with a calendar to make sure they are the correct dates.

Bus. days:Business days:Business days between dates:Business days between dates:

Business days between dates:

This is the number of business days counted by the calculator.

End date:Ending date:Ending date:Ending date:

Ending date:

This is the date the calculator stopped counting at.

If you would like to save the current entries to the secure database, tap or click on the Data tab, select "New Data Record", give the data record a name, then tap or click the Save button. To save changes to previously saved entries, simply tap the Save button. Please select and "Clear" any data records you no longer need.

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Tip

Help and Tools

Help and Tools:

This section, which you can Unstick or Hide in the Calculator Preferences (just above the top of the calculator), contains the following tabs (content too long to fit within bordered frame can be scrolled up and down):

About: Click this tab for an introduction to the calculator.

Instructions: Click this tab for step-by-step instructions for using the calculator.

Terms: Click this tab for a list of the descriptions that are located within each popup help button (info icons).

PCalc: Click this tab for a handy "pocket" calculator you can use when you need to calculate an entry needed for the calculator.

Data: Click this tab to save a set of entries or a note in between visits. Entries and notes will be stored to your web browser's local storage (if supported by your browser of choice), meaning they can only be recalled with the same device and web browser you were using when you saved them. If you'd like to save entries and notes between devices you can do so by subscribing to the Ad-Free Member Version.

 

Favorites

Add or remove this page to/from my favorites.

Adjust Calculator Width:

Move the slider to left and right to adjust the calculator width. Note that the Help and Tools panel will be hidden when the calculator is too wide to fit both on the screen. Moving the slider to the left will bring the instructions and tools panel back into view.

Also note that some calculators will reformat to accommodate the screen size as you make the calculator wider or narrower. If the calculator is narrow, columns of entry rows will be converted to a vertical entry form, whereas a wider calculator will display columns of entry rows, and the entry fields will be smaller in size ... since they will not need to be "thumb friendly".

Show/Hide Popup Keypads:

Select Show or Hide to show or hide the popup keypad icons located next to numeric entry fields. These are generally only needed for mobile devices that don't have decimal points in their numeric keypads. So if you are on a desktop, you may find the calculator to be more user-friendly and less cluttered without them.

Stick/Unstick Tools:

Select Stick or Unstick to stick or unstick the help and tools panel. Selecting "Stick" will keep the panel in view while scrolling the calculator vertically. If you find that annoying, select "Unstick" to keep the panel in a stationary position.

If the tools panel becomes "Unstuck" on its own, try clicking "Unstick" and then "Stick" to re-stick the panel.