Calculator
Working Days Calculator
Count business days between dates while excluding weekends.
Last updated: August 21, 2026
How it works
The calculator applies the formula shown in the result cards and updates instantly as values change.
Inputs should match the current source, rules, supplier, platform, or project data for your use case.
Results are estimates based on your inputs and should be verified before important decisions.
FAQ
How should I use the result?
Treat the result as a planning estimate based on the values you entered.
Why can the answer differ from another tool?
Different tools may use different rounding, default assumptions, provider fees, rates, or data sources.
Can I copy the result?
Yes. Use the copy button after calculation to copy a clean result summary.
Does this require an API?
No. This calculator runs in your browser without an extra API request.
How to use the Working Days Calculator
Use this math and time tools tool by entering the requested information, reviewing the result, and adjusting your inputs when you need to compare another option. ToolsMagicPro processes the information needed for the selected task and presents a practical result you can copy, download, or use in your next step.
For the most reliable outcome, check that names, numbers, files, URLs, or settings are complete before you run the tool. Results are intended to help with everyday research and workflow decisions. Where a result affects an important financial, legal, health, security, or publishing decision, confirm it with the relevant official source or qualified professional. You can also explore the related tools above to continue the same workflow without starting from scratch.