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Planning · Free browser tool

Free Business Days Calculator

Count Monday-to-Friday days between two dates, excluding the start date and including the end date.

Updated

What does this calculator do?

This business-day counter uses a Monday-to-Friday workweek. It excludes the start date and includes the end date so a same-day range returns zero.

Calculate your result

Free · No account required

Your entries stay in this browser session. Download or copy anything you want to keep.

Formula or structure

Count dates after the start and through the end where weekday is Monday–Friday

Worked example

Monday October 12 to Monday October 19, 2026 contains 5 business days with the start excluded.

How to use it

  1. Read the field descriptions and use one consistent set of units.
  2. Enter your own figures or select Load example to inspect a worked scenario.
  3. Review the result alongside the assumptions below.
  4. Copy or download the output, then assign the next action in your planning workflow.

Assumptions and interpretation

Public holidays and custom workweeks are not included. Local holidays can move a real project deadline.

Read the practical guide

Questions about this tool

Does this account for public holidays?
No. It skips Saturday and Sunday only. Subtract applicable local holidays from the result.
How does the business days calculator work?
This business-day counter uses a Monday-to-Friday workweek. It excludes the start date and includes the end date so a same-day range returns zero.
Do I need an account to use this tool?
No. This tool is free to use in your browser without signing in. My First Task is optional if you want to manage the resulting work in a shared workspace.
Are my inputs uploaded or saved?
The tool processes inputs locally in the browser and does not upload them or store them in an account. Copy or download any results you want to keep before leaving the page.

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