Ireland Business Days Calculator
Count working days in Ireland over any span, after weekends, its 10 public holidays and any leave you book.
About Ireland Business Days Calculator
Weekend days are derived from the number of whole weeks in the span, then public holidays and booked leave are subtracted. Multiplying by hours per day converts the result into the capacity figure used for planning. Ireland calendar. Project plans quoted in calendar days overstate available capacity by roughly 30% before holidays are even considered.
Formula
Ireland Business Days
Working days = calendar days − weekend days − public holidays − leave
- calendar days
- Total days in the span
- public holidays
- Holidays that land on what would be a working day
Frequently Asked Questions
How is Ireland Business Days calculated?
Working days = calendar days − weekend days − public holidays − leave Weekend days are derived from the number of whole weeks in the span, then public holidays and booked leave are subtracted. Multiplying by hours per day converts the result into the capacity figure used for planning.
Why does Ireland Business Days matter?
Ireland calendar. Project plans quoted in calendar days overstate available capacity by roughly 30% before holidays are even considered.
What values do I need to enter?
This calculator takes 5 inputs: Calendar days in the period, Non-working days per week, Public holidays falling on a working day, Annual leave taken in the period, Working hours per day. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.
Related Calculators
Ireland specifics
- Currency
- € EUREuro
- Region
- Europe
- Country code
- IE
- Amounts look like
- €1,234,567.89
- Dates look like
- 9 Mar 2026
- Units
- metricWeek starts Monday
Results on this page are expressed in EUR (Euro). Figures are estimates for general planning — confirm current rates and thresholds with the relevant Ireland authority before relying on them.