Business Days Calculator
Business Days Calculator by NIVITA HUF. Model scenarios, review calculations, explore detailed breakdowns and export results. Useful free planning tool.
Set your assumptions
Update the values to calculate your scenario.
Your calculation
Results update as you enter information.
JavaScript is required for interactive calculations.
How this calculator works
Iterate over inclusive dates, excluding chosen weekends and supplied holiday dates.
Important assumptions
Start and end dates are included. No public holidays are assumed except user-entered dates; calendar conventions depend on organisation.
About the Business Days Calculator
What inputs are needed for the Business Days Calculator?
The calculator supports Start date; End / reference date; Days to add / subtract; Weekend days; Holidays (optional YYYY-MM-DD per line); Start hour (0–23). You can change each applicable input and immediately recalculate.
How does the Business Days Calculator calculate its results?
Iterate over inclusive dates, excluding chosen weekends and supplied holiday dates.
Can I save or share my calculation?
Yes. Use Export CSV for the results table, Copy results for a summary, Share scenario for an input-preserving link, or Print to keep a copy. No sign-in is needed.
Are calculator results guaranteed?
No. Calculations depend on the values entered and the assumptions shown. Financial products and regulatory rules can change, and investment projections do not guarantee returns.