Use this free business days calculator to add or subtract business days from a date, such as 10 business days from today, or to count the working days between two dates. Saturdays and Sundays are always skipped, and you can also skip the US federal holidays and your own holidays. You get the new date, how many calendar days, weekend days and holidays were skipped, and a calendar picture of the days counted. Tables show the date 1 to 90 business days from today, how long 3 to 5 business days is, and the working days in a year and in each month. It is free and instant, and your dates stay in your browser.
What is a business day?
A business day is a normal working day: Monday to Friday, leaving out public holidays. Saturdays and Sundays are not business days. The calculator counts weekends for you, and you can add any holidays that apply, such as bank holidays in the UK or federal holidays in the USA, so they are skipped as well. Public holidays differ by country, region and employer, so the calculator lets you choose your own rather than guessing.
Counting business days between two dates
Enter a start date and an end date, and the calculator counts the Monday to Friday days between them, minus any holidays you added. By default the start day is counted and the end day is not, the same as the Day Counter, so Monday to the next Monday is 5 business days. Tick Include the end date to count both ends. This is how Excel's NETWORKDAYS works.
8 days with the end date = 6 business days + 2 weekend daysWithout the end date it is 7 days, which is 5 business days and 2 weekend days.
Over the whole of 2026 (1 January 2026 to 1 January 2027) there are 261 weekdays before holidays are taken off, and in 2024 there are 262.
Adding or subtracting business days
Use the other tabs to move forward or back a number of business days, such as a delivery that takes 10 business days, a 5-day notice period or a payment due in 30 business days. The day you start on is not counted, so 1 business day after a Friday is the next Monday.
= Monday 19 October 2026 (14 calendar days)If Wednesday 7 October is a holiday, adding 5 business days moves the answer from Monday 12 October to Tuesday 13 October.
US federal holidays
The calculator can skip the 11 US federal holidays: New Year’s Day, Martin Luther King Jr. Day, Presidents’ Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day and Christmas Day. When a holiday falls on a Saturday, federal employees take the Friday before off, and when it falls on a Sunday, the Monday after. That is why Independence Day 2026 (a Saturday) is taken on Friday 3 July. Banks, schools and private companies can follow other days, so you can switch the federal holidays off and add your own.
How long is 3 to 5 business days?
Delivery times are often given in business days. Count from the day after you order, skip weekends and holidays, and you have the date. An order placed on a Monday with “3 to 5 business days” arrives between Thursday and the next Monday. Placed on a Friday, it arrives between Wednesday and the next Friday. A holiday in the middle adds a day.
How many working days are in a year or a month?
A year has 260 to 262 weekdays. Take off the federal holidays that fall on a weekday (usually 11) and a year has about 250 working days; 2026 has 261 weekdays and 11 holidays, so 250 working days. A month has 20 to 23 weekdays. The tables on this page show the weekdays, holidays and working days for each year and each month.
Counting business days in Excel and Google Sheets
In a spreadsheet, =WORKDAY(A1,10) gives the date 10 working days after the date in A1, and =NETWORKDAYS(A1,B1) counts the working days between two dates, with both the first and last day included. Add a range of holiday dates as the last argument to skip them too.
Tips for accurate answers
- Add every holiday that falls in your period. Holidays on a Saturday or Sunday make no difference, as those days are already skipped.
- If your business also works weekends, use the Day Counter instead, which counts every calendar day.
- Check the contract or rules that apply to you. Some deadlines count the start day, and some count business days differently.
