Working Days Calculator Calculators
Count working days between two dates, excluding weekends and holidays.
Working Days Calculator is a free online tool that count working days between two dates, excluding weekends and holidays. It runs entirely in your web browser using plain JavaScript, so files are processed on your own device and never uploaded to a server. There is no sign-up, no file size limit imposed by the site, no watermark and no paid tier.
- Price
- Free — no account, no quota, no watermark
- Category
- Calculators
- Where it runs
- In your browser, on your device
- Files uploaded
- None
- Technology
- plain JavaScript
- Settings
- 4
- Works offline
- Yes, after the first visit
About Working Days Calculator
Working days are counted day by day rather than approximated as weeks × 5, which matters for ranges that start or end mid-week. Public holidays are subtracted as a number you supply, because there is no universal list — the UK alone has three different sets across its nations.
How to use it
- Enter from, to and public holidays to exclude.
- Adjust the remaining 1 setting if the defaults do not fit your case.
The 4 settings
| Setting | What it does | Default |
|---|---|---|
| From | Free text. | — |
| To | Free text. | — |
| Public holidays to exclude | Range 0–60. | 0 |
| Count Saturdays as working days | On or off. Off by default. | Off |
Under the hood
| Runs on | plain JavaScript — runs the whole thing |
| Controls | From, To, Public holidays to exclude, Count Saturdays as working days |
Questions
How many working days are in a year?
Around 260 before holidays, and 250–253 after typical public holidays in most Western countries. Subtract annual leave for the number of days actually worked.
What are the limits on public holidays to exclude?
It accepts 0 to 60, starting at 0.
Is the arithmetic exact?
It uses double-precision floating point — about 15 significant figures, far more than the inputs justify. Displayed rounding is cosmetic; the underlying numbers are not rounded between steps, so chained results do not drift.