Business Days Calculator
Measure business days between two dates for payroll cutoffs, service-level timelines, invoicing windows, and delivery estimates.
Continue with another calculation
Core Week Calculator
Convert dates to ISO weeks, turn week numbers into date ranges, calculate weeks between dates, add/subtract weeks and count from today.
Open →Planning Calculators
Plan deadlines, project timelines, payroll periods, work anniversaries and timesheet weeks.
Open →Week Calendar
Browse ISO weeks by year with Monday-to-Sunday ranges and highlighted current week.
Open →When to use this tool
Business days usually mean Monday through Friday. This calculator skips Saturdays and Sundays and also shows the full calendar span.
Practical uses
Measure business days between two dates for payroll cutoffs, service-level timelines, invoicing windows, and delivery estimates.
These planning tools are designed for quick answers, but they also work well as part of a bigger workflow. You can pair them with the year calendar, current week page and week guides to plan projects, delivery windows, payroll cycles, reporting periods and deadlines.
FAQ
Are holidays excluded?
This first version excludes weekends. Public-holiday calendars can be added in a later update.
What is the difference from a days calculator?
A days calculator counts all calendar days; a business days calculator skips weekends.