Date Tool

Business Days Calculator

Calculate the number of business days (working days) between two dates. Automatically exclude weekends and optionally exclude US federal holidays. Essential for project planning, shipping estimates, and deadline calculations.

Start Date

End Date

Exclude Weekends

Exclude US Federal Holidays

Enter start and end dates to calculate business days between them.

Learn More About Business Days

Understand how to calculate and use business days effectively:

Beginner Guide

What Are Business Days?

Understanding business days vs calendar days in project planning

Q&A Post

US Federal Holidays List

Complete list of US federal holidays and observances

Q&A Post

Project Timeline Calculation

How to calculate realistic project deadlines using business days