Number of Working Days Calculator

Working days = Total calendar days − Weekends − Public holidays. Essential for project planning and contract deadlines.

What this calculator does

There are approximately 260 working days per year (52 weeks × 5 days − 11 US federal holidays).

How it works

Some industries (banking, finance) use different holiday calendars.

When to use this calculator

Reach for this calculator when precision matters more than rough approximation — whether that is for a financial decision, a planning task, or simply getting the right answer the first time.

Common mistakes

A common mistake is misidentifying which formula applies to the specific version of the problem. Many everyday calculations have superficially similar variants that use different formulas — always check which scenario matches your situation.

Real-world scenarios

A freelancer calculates the exact number of working days between a project start and deadline, accounting for weekends and public holidays. The result tells them whether the timeline is achievable before accepting the brief — not after.

Frequently asked questions

How many working days in a year?

Approximately 260 working days in the US (2024): 365 days − 104 weekend days − 11 federal holidays.

How do I calculate business days between dates?

Count all days, subtract Saturdays and Sundays, then subtract any public holidays that fall on weekdays.

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