Business Days Calculator
"30 days from now" and "30 business days from now" are not the same date, and the gap between them can quietly wreck a deadline. Count business days between dates, or find exactly what date lands N business days out.
Quick answer: A standard work year has about 260 business days, and a typical month has 19 to 22 in a 5-day workweek. This calculator counts business days between two dates, or adds/subtracts business days from a date, automatically skipping weekends and, optionally, all 11 U.S. federal holidays.
Your result will appear here.
What counts as a business day?
In a standard 5-day workweek, business days run Monday through Friday, with Saturday and Sunday excluded entirely. Some industries and countries run a 6-day workweek instead, counting Monday through Saturday as business days and treating only Sunday as the day off. On top of the weekend rule, most business day counts also exclude recognized public holidays, since offices, banks, and government agencies are typically closed on those dates regardless of which day of the week they fall on.
This distinction matters more than it sounds like it should. "30 days" and "30 business days" from the same starting date can land nearly a week and a half apart once weekends and holidays are factored in, which is exactly the kind of gap that quietly causes missed deadlines when the wrong version gets assumed.
US federal holidays this calculator accounts for
When the holiday option is enabled, this calculator automatically computes all 11 U.S. federal holidays for the relevant years, including the observance rule that shifts a holiday landing on a Saturday back to the preceding Friday, and a holiday landing on a Sunday forward to the following Monday.
Fixed-date holidays (with weekend shift applied): New Year's Day (Jan 1), Juneteenth (June 19), Independence Day (July 4), Veterans Day (Nov 11), Christmas Day (Dec 25).
Floating Monday/Thursday holidays: Martin Luther King Jr. Day (3rd Monday of January), Presidents Day (3rd Monday of February), Memorial Day (last Monday of May), Labor Day (1st Monday of September), Columbus Day (2nd Monday of October), Thanksgiving (4th Thursday of November).
Juneteenth became a federal holiday in 2021, so the calculator only applies it for years from 2021 onward. If your organization observes additional days not on this list, such as a company shutdown or a regional holiday, add them in the custom holidays field and they'll be excluded the same way.
How many business days are in a year or a month?
A typical calendar year contains roughly 260 business days once weekends are excluded, assuming a standard 5-day workweek. Once the 11 U.S. federal holidays are also excluded, that number drops slightly further, usually landing somewhere between 250 and 253 depending on which weekdays the holidays happen to fall on that particular year.
On a monthly basis, a 5-day workweek typically produces between 19 and 22 business days per month, since actual calendar months vary in length and in exactly how many weekend days they contain. A 6-day workweek shifts that range up to roughly 24 to 27 business days per month instead.
Does "Net 30" actually mean 30 business days?
No, and this trips up a lot of invoices. Standard "Net 30" payment terms mean 30 calendar days from the invoice date, weekends and holidays included, not 30 business days. If a contract genuinely intends business days, it needs to state that explicitly, something like "Net 30 business days," since that phrasing meaningfully stretches the real payment window out by roughly a week to a week and a half compared to standard Net 30.
The quick shortcut buttons in this calculator's "Add or Subtract" mode are labeled "Net 30 (business days)" and similar specifically to make that distinction clear, since they calculate the business-day version of these common payment windows, not the default calendar-day version most invoices actually use.
Putting a business day count into perspective
A raw business day count doesn't always mean much on its own. If you want to see what a recurring rate, like "20 orders per business day," would translate into on a weekly or monthly basis, the Reverse Time Calculator converts a rate from one time unit into any other, which pairs naturally with a business day count when you're trying to compare production, sales, or output figures across different reporting periods.
And once you know which days count as working days, you may still need to know the exact hours within them. If a project needs to close by a specific business day at a specific time, not just by the end of that calendar date, the Time Duration Calculator can measure the precise hours and minutes remaining once that business day arrives.
Business Days Calculator FAQs
What counts as a business day?
In a standard 5-day workweek, business days are Monday through Friday, with Saturday and Sunday excluded. In a 6-day workweek, business days run Monday through Saturday, with only Sunday excluded. Public holidays are generally excluded from business day counts as well, following the most common standard of counting all days except Saturday, Sunday, and recognized holidays.
How many business days are in a year?
A typical year contains roughly 260 business days once weekends are excluded, assuming a standard 5-day workweek. That number drops slightly, usually to somewhere between 250 and 253, once the 11 U.S. federal holidays are also excluded, though the exact figure shifts slightly year to year depending on which weekday each holiday falls on.
How many business days are in a month?
It typically ranges between 19 and 22 business days per month in a 5-day workweek, since actual calendar months vary in length and in how many weekends they contain. In a 6-day workweek, that range shifts up to roughly 24 to 27 business days per month.
Does this calculator account for US federal holidays automatically?
Yes, when the holiday option is enabled. The calculator computes all 11 U.S. federal holidays for the relevant years automatically, including fixed-date holidays like Independence Day and Christmas, floating holidays like Memorial Day and Thanksgiving, and applies the standard weekend observance shift, moving a Saturday holiday to the preceding Friday and a Sunday holiday to the following Monday.
Can I add my own company-specific holidays?
Yes. Beyond the automatic U.S. federal holidays, you can enter any additional dates your organization observes, such as a company shutdown day or a regional holiday, and the calculator will exclude those from the business day count or the add/subtract calculation as well.
Does 'Net 30' on an invoice mean 30 business days?
No, and this is a common point of confusion. Standard 'Net 30' payment terms almost always mean 30 calendar days from the invoice date, including weekends and holidays, not 30 business days. If a contract genuinely means business days, it needs to say so explicitly, such as 'Net 30 business days,' since that phrasing meaningfully extends the actual payment window by roughly a week or more.
How do I find a date a certain number of business days from today?
Switch this calculator to the 'Add or Subtract' mode, enter today's date as the starting point, enter how many business days you want to move forward or backward, and select Calculate. The tool skips weekends and any excluded holidays automatically, landing on the correct resulting business day rather than a raw calendar date.
What's the difference between this and a regular days-between-dates calculator?
A standard days-between-dates calculator counts every single calendar day between two dates, weekends and holidays included. This Business Days Calculator instead filters that count down to only the days that actually count as working days, which matters for anything tied to a work schedule, like project deadlines, SLA windows, or shipping estimates.
This tool is for educational purposes only. Always verify important results with a qualified professional.
