How to convert MKV videos to 3GP on Mac?

MKV to 3GP on Mac OS X: Convert Video from MKV (Matroska Video) to 3GP (3GP Mobile Video) with Mac MKV video Converter, MKV23GP converter for Mac, conversion

What are 3GP videos?

The 3rd Generation Partnership Project (3G/3GPP) is a collaboration agreement that was established in December 1998. The 3GPP and 3GPP2 specifications call out specific types of media that can exist in .3gp and .3g2 files.

In general, if a cell phone record a 3g2 video, it should conform to the 3G2 standard. However, a cell phone may not have the ability to play all variety of 3G2 videos due to limited codec support on the cell. Thus, it is easy to convert a cell phone 3G2 to a video format playable on a computer, but it is not so easy to convert a PC video to a 3G2 which is compatible with your particular brand of cell phone.

It also contains descriptions of image sizes and bitrate. There are two different standards for this format:
3GPP (for GSM-based Phones, may have filename extension .3gp)
3GPP2 (for CDMA-based Phones, may have filename extension .3g2)

How to convert MKV to 3GP on Mac OS X?

Step 1, Download and install MKV video converter

You can download it for free here:

To install it, simply mount the .dmg archive by double-clicking it, and copy the application to your applications folder (or wherever you want).

Step 2, Add MKV video files

Click the "Add Files" button to add MKV video files to the program. This MKV video converter for Mac supports drag and dropping. It also supports batch conversion, so you can import and convert several multimedia files at a time.

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Step 3, Select output format

Use the “format” on the bottom of the window to control the output format. Click on the toggle to the right of the "Format" label to expand the panel. Select "3rd Generation Partnership Project-3GP" as the output format.

Select 3GP, mkv to 3gp

Step 4, Change 3GP Video and audio Settings

3GP Settings, convert mkv to 3gp

Click on the “Setting” button to expand “Setting” panel.
You can change the Resolution, Encoder, Bit rate and Frame rate of the 3GP video and Sample Rate, Channels, Encoder and Bit Rate of the 3GP Audio. The size of the 3GP file depends a lot on these settings.
The bitrate is in the unit of kbit/second. Use this formula to calculate the video size per minute:
Video size/minute (KByte/second) = bitrate / 8 * 60.

Step 5, Select output directory

Expand the "Output" panel. Use the "Browse" button to select an output directory.

Step 6, Click “Convert” to convert MKV to 3GP on Mac.