Working Days Calculator

Reviewed by the CalculatorHub team, edited by James Graham. Counts business days excluding weekends and holidays. Last verified 13 June 2026.

When planning a project deadline, calculating a notice period, scheduling a delivery, or figuring out how many billable days fall within a period, you typically need business days rather than calendar days. Business days generally exclude weekends (Saturday and Sunday), though some industries and countries define them differently. Public and bank holidays further reduce the count, but these vary widely by country, state, employer, and year, so no automatic holiday list applies universally. This calculator counts the weekdays (Monday through Friday) between a start date and an end date, treating the start date as included and the end date as included by default, so a Monday-to-Friday range of the same week returns five working days. It optionally excludes weekends (enabled by default). It also provides up to five custom date exclusion fields where you can manually enter specific public holidays or company closure dates relevant to your jurisdiction and employer, so the result reflects your actual working-day calendar rather than a generic approximation. The result shows total calendar days, total weekdays before custom exclusions, the number of custom days excluded, and the final net working days. For reference, it also notes the number of weekend days in the selected range. Enter your start date, end date, and any holiday dates to get an accurate business-day count.