How to Use the Business Day Deadline Calculator
When planning project timelines, contracts, or legal deadlines, adding raw calendar days can accidentally include weekends and holidays that don't count as working days. This calculator lets you enter a start date and the number of working days, then automatically skips Saturdays, Sundays, and US federal holidays — giving you the exact deadline date.
US federal holiday data is pre-loaded for 2025 through 2027. The result shows the deadline date, day of week, and how many weekends and holidays were skipped. Toggle the holiday option if your organization works on public holidays.
Frequently Asked Questions
No. The start date is treated as day zero. The first business day is the next working day after the start date.
The calculator works for any date range, but built-in US holiday data only covers 2025–2027. For dates after 2027, select "count holidays as working days" to skip weekends only.
The calculator automatically moves forward past holidays and weekends until the required number of business days is reached, so the result is always a valid working day.