[FREE] How to Convert DMG to ISO for Windows and VirtualBox

If you've ever downloaded software for macOS, you've likely come across DMG files. These disk image files are used on Macs for installing applications, backing up data, or creating bootable disks.

However, DMG files aren’t always compatible with other systems, such as Windows or virtual environments like VirtualBox and VMware. That's where converting a DMG to ISO comes in handy. ISO files are universally accepted, making them perfect for cross-platform use. This article will walk you through different methods to convert DMG to ISO on Mac, online, and on Windows. We’ll also introduce a few tools that can act as free DMG to ISO converters.

How to Convert DMG to ISO on Mac

Converting DMG to ISO is relatively simple for macOS users. The built-in Disk Utility and Terminal apps offer a powerful way to handle disk images, including the ability to convert DMG files to ISO.

How to Convert DMG to ISO on Mac Using Disk Utility

1. Open Disk Utility by clicking Finder > Applications > Utilities > Disk Utility or searching for it using Spotlight.
2. Click the Images menu in Disk Utility and select Convert.

   

3. Select your DMG file and click "Choose".

   

4. Name your file, choose where to save it, select "DVD/CD master" from the "Image Format" drop-down menu, and click the "Convert" button.

   

5. When the conversion is finished, find your .cdr extension file and rename it with .iso.

How to Convert DMG to ISO on Mac Using Terminal

1. Open the Terminal app.
2. Make sure you know where the DMG file is saved on your Mac.
3. Use the following command to convert DMG to CDR:

hdiutil convert /path/to/your.dmg -format UDTO -o /path/to/your.cdr

Note: Replace /path/to/your.dmg with the actual path of your DMG file and /path/to/your.iso with where you want the ISO to be saved. For example, if your DMG file is named macOS Sequoia.dmg and you want to save it on the desktop, the command would look like this:

hdiutil convert ~/Downloads/"macOS Sequoia.dmg" -format UDTO -o ~/Desktop/"macOS Sequoia.cdr"

4. After the conversion, the output file will have a .cdr extension. To rename it to .iso, run this command:

mv ~/Desktop/"macOS Sequoia.cdr" ~/Desktop/"macOS Sequoia.iso"

5. Find the ISO file on your desktop.

How to Convert DMG to ISO Online

If you don’t want to deal with Terminal commands, or if you’re using a different platform, an online DMG to ISO converter might be more convenient. Many websites offer free conversion services, allowing you to convert DMG to ISO online without downloading any software. Here’s how to convert DMG to ISO online:

1. Choose a free DMG to ISO converter online, such as Converter 365, Convertio, or CloudConvert.
2. Upload your dmg file to the website.
3. Select ISO as the output format.
4. Click Convert, wait for the process to complete, and download your ISO file.

How to Convert DMG to ISO on Windows

For Windows users who need to convert DMG files to ISO, you’ll need to rely on third-party software, as Windows doesn’t natively support DMG files. Fortunately, there are some free and reliable DMG to ISO converters available for Windows. Among these, the most popular ones are AnyBurn (free) and PowerISO (with a free trial).

Here’s how to convert your DMG file to an ISO file on Windows 11/10:

1. Download and install a DMG to ISO converter on your Windows computer.
2. Open the installed converter.
3. Follow the on-screen instructions to select your DMG file and convert it to ISO format.

Conclusion

Converting DMG files to ISO is essential when you need to use macOS software on other platforms, such as Windows or in virtual environments. Fortunately, the conversion is easy if you have the right tools at hand. This article provides you with several DMG to ISO converters, including both online and offline options. Just choose one based on your situation.