How to Format Sd Card on Mac

Alicia Santos

Mac, Tutorials

Formatting an SD card on a Mac is a simple and essential task. Whether you want to reuse the SD card for another purpose or fix any issues you’re facing, formatting can help you achieve that. In this tutorial, we will guide you through the step-by-step process of formatting an SD card on your Mac.

Step 1: Connect the SD Card to Your Mac

Before we begin, make sure your SD card is properly inserted into your Mac’s SD card slot or connected via an external card reader.

Step 2: Open Disk Utility

To format the SD card, we will be using the built-in Disk Utility application on your Mac. You can find it by following these steps:

  • Click on the Finder icon located in your Dock.
  • In the menu bar at the top of your screen, click on “Go”.
  • Select “Utilities”.
  • Open Disk Utility.

Step 3: Select the SD Card

In Disk Utility, locate your SD card from the list of available drives and volumes on the left-hand side. It should appear with its name or as “Untitled” if it hasn’t been formatted before.


If you cannot find your SD card in Disk Utility, try removing and reinserting it or using a different USB port or external card reader if applicable.

Step 4: Erase the SD Card

Now that you have selected your SD card, it’s time to erase and format it. Follow these steps:

  • Click on the Erase button located at the top of the Disk Utility window.
  • In the Format dropdown menu, select the desired file system format.

    If you plan to use the SD card with multiple devices, choose “FAT32”. For Mac-only usage, select “Mac OS Extended (Journaled)”.

  • Provide a name for your SD card in the Name field. This is optional and can be left blank.
  • Double-check that you have selected the correct SD card for formatting.
  • Click on the Erase button to start the formatting process.


The formatting process will erase all data on the SD card. Therefore, ensure that you have backed up any important files before proceeding.

Step 5: Wait for Formatting to Complete

The time taken to format your SD card will depend on its size and speed. During this process, do not remove or eject the SD card from your Mac.

Step 6: Verify Formatting Success

Once formatting is complete, Disk Utility will display a success message. You can now close Disk Utility and safely eject your SD card from your Mac.


If you encounter any issues during or after formatting, try restarting your Mac or using a different USB port or external card reader.

That’s it! You have successfully formatted your SD card on your Mac. Now you can reuse it for your desired purpose or resolve any problems you were facing.

Remember to always handle your SD card with care and keep it in a safe place to prevent physical damage or data loss.

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