Calculate Business Days in Excel

Learn how to count business days in Excel for project planning. Master the formulas that skip weekends and holidays automatically.


How the Calculate Business Days in Excel works

Use NETWORKDAYS to count working days between two dates, and WORKDAY to find a future date after adding business days. Add a holiday list to skip company holidays too.

Planning projects means knowing actual working days, not calendar days. These Excel formulas save time and prevent scheduling mistakes.

How it works

Tutorial

Excel can automatically count business days between dates and calculate deadline dates while skipping weekends and holidays. These built-in formulas save time and prevent scheduling errors for projects, contracts, and business planning.

You have two options: use the calculator above for quick business day calculations, or follow this guide to learn the Excel formulas.

The Formulas You Need

Excel FunctionWhat It DoesHow to Use It
NETWORKDAYSCount working days between dates=NETWORKDAYS(start_date, end_date, [holidays])
WORKDAYFind a future business day=WORKDAY(start_date, days, [holidays])
NETWORKDAYS.INTLCustom weekends (like Sunday-Monday off)=NETWORKDAYS.INTL(start, end, weekend, holidays)

Step-by-Step Examples

Here’s how to use these formulas in real scenarios.

Example 1: Count Business Days Between Dates

Find how many working days in a project:

CellDescriptionValue/FormulaResult
A1Project Start1/15/20241/15/2024
A2Project End2/15/2024
A3Working Days=NETWORKDAYS(A1,A2)23 days

How it works:Excel counts weekdays from Jan 15 to Feb 15 =23 business days

Example 2: Calculate a Future Deadline

Find the date 30 business days from today:

CellDescriptionValue/FormulaResult
B1Start Date1/15/2024 (Monday)1/15/2024
B2Days Needed3030
B3Deadline=WORKDAY(B1,B2)2/26/2024

How it works:Excel adds 30 weekdays (skipping weekends) =February 26, 2024

Example 3: Include Company Holidays

Skip holidays when counting or calculating:

SetupFormulaResult
Holidays in E1:E31/1/2024, 1/15/2024, 2/19/20243 holidays
Count with holidays=NETWORKDAYS(A1,A2,E1:E3)22 days
Deadline with holidays=WORKDAY(B1,B2,E1:E3)2/27/2024

Final Answer:With holidays included, 30 business days =February 27, 2024

How to Use This

Create a list of your company holidays once (in a column), then reference that range in all your formulas. Excel will automatically skip weekends and those holidays when counting or calculating dates. This works for project timelines, delivery schedules, contract deadlines, or any business planning.


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