Business Days Calculator

Formula

Count Monday through Friday

Worked example

Monday to next Monday — 5 working days

Quick answer

What does the Business Days Calculator do?

Count business weekdays between two dates, excluding Saturdays and Sundays.

What is the Business Days Calculator?

Count business weekdays between two dates, excluding Saturdays and Sundays. Use it when you have the required inputs and want a deterministic, repeatable result with the calculation method visible.

How to use this calculator

Enter the values requested by the tool, keep units and time periods consistent, resolve any validation message, calculate, then review the primary answer together with the displayed formula and supporting values.

Formula and method

This calculator uses the deterministic formula Count Monday through Friday. Enter the required values, then review the displayed substitution and result breakdown to verify the calculation.

Worked example

Monday to next Monday 5 working days

Common mistakes to avoid

Check units, decimal points, percentages, signs, date/time order, selector choices, and rounding. For important decisions, verify the result against an independent source or qualified professional when appropriate.