Table of Contents
In this article, we will learn How to convert macOS Installer File to DMG (.app to .dmg). This process is useful to create a DMG file to create a macOS bootable USB drive.
Convert macOS Installer File to DMG
1. Create a new folder on your desktop.
![](https://s3.amazonaws.com/s3.bonguides.com/2022/gif/Gxv9c5vt9wU6JME8I3SVgvaycaWwFfWfG9q9BtcqFWSr.gif)
2. Copy your installer file from your Applications folder into the newly created folder on desktop.
![](https://s3.amazonaws.com/s3.bonguides.com/2022/gif/Gxv9c5vt9wU6JME8I3SVgvaycaWwFfWfG9q9BtcqFWSradsadawe.gif)
3. Open Disk Utility from Launchpad or Spotlight.
4. Go to Disk Utility > File > New Image > Image from Folder.
![](https://s3.amazonaws.com/s3.bonguides.com/2022/11/y2PduRS652dpvyTMa4GBjeNuDNVwlzpYwcuwNRR32a5rcBubADAqmkjXQLuq.jpg)
5. Now select the New Folder that we created on the desktop and click Choose.
![](https://s3.amazonaws.com/s3.bonguides.com/2022/11/g6qDOk592z5iNXUEBakYF02YQhM0qF5xCnssfRMqG50U9QBCg7csWOujgWm2.jpg)
6. Name your DMG file and click Save.
![](https://s3.amazonaws.com/s3.bonguides.com/2022/11/0w6tng3bDmGlmOLRjYTsXk162awK37jb1wNqNmWmTaB3IZ06ntQcCzxsGvIi.jpg)
The process will take a few seconds and your newly created DMG file will be ready.
![](https://s3.amazonaws.com/s3.bonguides.com/2022/11/EVhzjyxtfoVu0Y3ZQXzjAfKuEcdwz3Oos5Tx0Z1gky9vzNCWTOEdxj8T7qPm.jpg)
The file will be saved on your desktop. See the below snapshot for reference.
![](https://s3.amazonaws.com/s3.bonguides.com/2022/11/SpOV68DgxMivYMvHjY0MDLlkeJYvMwlBEvMxSV6gi0oJ9FmZPMcAzGVpw0tm.jpg)
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