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💼 Weekday calculator

Business Days Calculator

Count weekdays between two dates for work planning, billing windows, tax preparation, travel, and project deadlines.

Free browser tool Inputs are processed locally in your browser. Results are estimates for planning, scheduling, and everyday reference.

Count business days

What counts as business days?

This first version counts Monday through Friday and excludes Saturday/Sunday. It does not remove federal, bank, school, or country-specific holidays.

Future expansion

This can expand into country/state holiday calendars and yearly business-day pages, which are strong AdSense-safe search targets.

Related tools

Popular business-day reference pages

Use these crawlable reference pages when you need a fixed year or month baseline before applying local holidays and institution-specific rules.

How to interpret calculator results

The calculator gives a transparent Monday-through-Friday count. That makes it useful for quick planning because the result does not depend on a hidden holiday database or country setting. For formal deadlines, compare the result with the rules that matter in your context: bank holidays for payments, federal or state holidays for filings, school calendars for education planning, and company shutdown days for staffing. When in doubt, use the result as a baseline rather than a final legal or payroll answer.

Example business-day calculations

Example rangeCalendar daysWeekday business daysWhy it matters
Next 30 calendar days30 or 31 depending on endpointsUsually 20-23Good for sprint planning and invoice follow-up windows.
One full work week75Use this for simple staffing and production estimates.
One full month28-3120-23Month length and weekday alignment change the final count.

These examples are illustrative; enter your own dates above for the actual count.

Common mistakes to avoid

  • Do not treat the result as a holiday-adjusted answer unless you manually remove holidays after calculating.
  • Do not mix inclusive and exclusive counting rules in the same project plan; choose one rule and document it.
  • Do not assume two months with the same number of calendar days have the same number of business days; weekday alignment changes the count.

FAQ

Does this exclude holidays?
No. It excludes weekends only.
Can I use it for payroll or legal deadlines?
Use it as a planning aid only. Confirm critical rules with the relevant institution.
Does it count the end date?
By default yes; uncheck the inclusive option if you want to exclude endpoints.