What does Business Days Calculator do?

Business Days Calculator is a free online tool from MarkVibe that lets you count business days between two dates. No sign-up, no install — open the page and use it.

Is Business Days Calculator free?

Yes, Business Days Calculator is 100% free with no credit card, no daily limit, and no watermark. Use it as often as you like.

Does Business Days Calculator send my data to a server?

No. Business Days Calculator runs entirely in your browser using client-side JavaScript, so your input stays on your device.

Does Business Days Calculator work on mobile?

Yes. Business Days Calculator is fully responsive and works on any modern browser — Chrome, Firefox, Safari, Edge on phones, tablets, and desktops.

Where can I find more date and time tools?

MarkVibe ships 230+ free utilities including a full suite of date and time tools. Scroll to the Related tools section below to discover more in this category.

Business Days Calculator — Free Online Tool

What is the Business Days Calculator?

The Business Days Calculator is a free online date & time from Markvibe. Count business days between two dates. It runs entirely in your browser — your data never gets uploaded — and works on desktop, tablet and mobile with no sign-up.

Reviewed by The Markvibe Team · Last updated 2026-06-28

Example

A worked example so you know exactly what to expect.

Input

(your input goes here)

Output

(the Business Days Calculator runs in your browser and shows the result instantly)

How to use Business Days Calculator

1Open the Business Days Calculator above on MarkVibe — it loads instantly with no sign-up.
2Enter or paste your input into the Business Days Calculator field.
3Tweak any options to control exactly how Business Days Calculator produces the result.
4Click the action button — Business Days Calculator runs locally in your browser and shows the result.
5Copy the output to your clipboard or save it, then share the Business Days Calculator link with anyone who needs it.

Why use our Business Days Calculator

✓ 100% free Business Days Calculator — no sign-up, no watermark, no hidden limits
✓ Runs entirely in your browser so your data never leaves your device
✓ Blazing-fast results — built for speed by Markvibe
✓ Mobile-friendly: use Business Days Calculator on phone, tablet, or desktop
✓ One of 184+ date & time utilities under one roof
✓ Privacy-first: no tracking of inputs, no accounts, no ads in the tool area