MAC Address Format Converter

Convert a MAC address between colon (:), hyphen (-), Cisco (.) notation, a no-separator form, and upper/lowercase. All calculations happen inside your browser.

Enter a MAC address to see the result.

How to use

  1. Enter a MAC address in any format.
  2. The colon, hyphen, Cisco, no-separator, and uppercase forms are shown automatically.
  3. Copy the format you need and use it.

Frequently asked questions

What MAC formats can I enter?

You can enter any format — colon, hyphen, dot (Cisco), or 12 hex digits with no separator. Case does not matter.

What is Cisco notation?

A notation used on Cisco devices, grouping four hex digits with dots (.) as aabb.ccdd.eeff.

Are the values I enter sent to a server?

No. All calculations happen only inside your browser, and the values you enter are never sent to or stored on any server.