Calculators
About the Days Calculator
The Days Calculator is a free online calculator from Toolbench. Days, weeks and business days between two dates. Enter your numbers and the answer — with the formula used — updates as you type.
- Category
- Calculators
- Price
- Free
- Account
- Not required
- Runs
- Entirely in your browser
How to use the Days Calculator
- Enter the values (start date, end date, include end date).
- Read the result — it updates as you type.
- Check the breakdown rows to see exactly how it was calculated.
Worked example
| Days | 30 |
|---|---|
| Weeks | 4 weeks, 2 days |
| Business days (Mon–Fri) | 21 |
| Weekend days | 9 |
| Months (approx.) | 0.99 |
| Hours | 720 |
Formula: Days between dates are counted as calendar days (optionally including the end date); business days exclude Saturdays and Sundays but not public holidays.
Inputs
| Start date | Date (defaults to today) |
|---|---|
| End date | Date (defaults to today) |
| Include end date | On / off |
Privacy
Everything runs in your browser: what you type or paste is processed by JavaScript on your device, not on a server. If you are signed out, nothing is saved at all. If you sign in with Google, your inputs and settings are saved privately to your account so they sync across devices.
Frequently asked questions
Is the Days Calculator free?
Yes. Days Calculator is completely free with no sign-up, no usage limits and no watermarks.
Is my data private?
Yes. The Days Calculator processes everything in your browser. Signed out, nothing is saved; signed in, your inputs sync privately to your own account.
How does the days calculation work?
Days between dates are counted as calendar days (optionally including the end date); business days exclude Saturdays and Sundays but not public holidays.
Does it work on my phone?
Yes. Toolbench runs in any modern browser on desktop, tablet or phone — there is nothing to install.
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