Free Business Days Calculator
Count weekdays (Mon–Fri) between two dates.
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Inputs
Result
Business days
22
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Short answer
Count weekdays (Mon–Fri) between two dates.
What is the Business Days Calculator?
Count weekdays (Mon–Fri) between two dates.
How does the Business Days Calculator work?
Enter the inputs above and read the result.
Formula
Variables
WeekendSaturdays and Sundays
Explanation
Steps through each day between the two dates, counting only Monday–Friday.
Examples
Applications
Advantages
Limitations
Common mistakes
Tips
Related concepts
The Business Days Calculator sits inside the Date & Time Calculators hub, in the date differences & durations cluster. Measuring the span between two dates. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding Business Days
Count weekdays (Mon–Fri) between two dates. Within date & time calculators, business days belongs to the date differences & durations cluster, where it shares terminology and assumptions with closely related tools.
Learning how business days is calculated
Steps through each day between the two dates, counting only Monday–Friday. Working through the variables one at a time — Weekend — makes the result reproducible by hand and easier to sanity-check.
Using business days to make a decision
Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How business days compares with related measures
duration, span, inclusive counting, deadline all describe adjacent aspects of date differences & durations. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
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