Convert M4A to WMA
Free, fast M4A → WMA. No watermarks, no sign-up.
How to convert M4A to WMA
1. Upload M4A
Drop your M4A file into the converter above.
2. Confirm WMA
Output is already set to WMA. Adjust only if you need to.
3. Download
Convert and download your WMA file instantly.
Format Details
M4A
M4A is a file extension for an audio file encoded with advanced audio coding (AAC) which is a lossy compression. M4A was generally intended as the successor to MP3, which had not been originally designed for audio only but was layer III in an MPEG 1 or 2 video files. M4A stands for MPEG 4 Audio.
audioWMA
WMA (Windows Media Audio) is a series of audio codecs and their corresponding audio coding formats developed by Microsoft. It is a proprietary technology that forms part of the Windows Media framework. WMA consists of four distinct codecs: WMA, WMA Pro, WMA Lossless, and WMA Voice.
audioConverting M4A to WMA: what actually changes
M4A to WMA is one of the conversions this site performs, but the two formats are not interchangeable containers. Here is what the file keeps, what it loses, and how to get a result you can use.
What .M4A and .WMA each hold
.M4A is a audio format built for listening to or editing a recording, storing sample rate, channels and bitrate. .WMA is a audio format built for listening to or editing a recording, storing sample rate, channels and bitrate. Converting between them is a decision about which of those two jobs the result needs to do.
What changes in the conversion
Both files belong to the audio category, so this is a like-for-like repackage: the same kind of content, stored in a different container. What changes is how .WMA encodes sample rate, channels and bitrate — not what the file is about.
Quality and file size
Both .M4A and .WMA are lossy formats. Each conversion re-compresses the file, so quality drops a little every round trip. Convert once from the original rather than chaining conversions.
When this conversion is the right one
Reach for .WMA when the software, device or platform you are sending to expects it — the content is the same audio, only the packaging differs. The reverse direction works the same way, so you can always convert back from .WMA to .M4A using the same tool.
Tips for a clean M4A to WMA conversion
Start from the original file
Convert the .M4A you started with, not an earlier .WMA output. Every extra round trip costs quality and can accumulate formatting drift.
Check the real type, not the extension
Audio/mp4 becomes audio/x-ms-wma. If a file was renamed rather than converted, it will fail to open — rename it back to its true extension before uploading and the conversion will recognise it.
Length decides the time
Conversion runs in real terms on duration: a few seconds of media finishes almost at once, while a full-length .M4A takes noticeably longer. Upload once and let it finish rather than retrying.
Limits worth knowing
Uploads are capped per file (30 MB, or 100 MB for video) and processed temporarily — nothing is kept as a permanent copy. For huge audio files, split or compress the source first.
Frequently Asked Questions
How do I convert M4A to WMA?
Upload your M4A file on Convertek, select WMA as the output format, then click Convert. Your WMA file will be ready to download instantly.
Is the M4A to WMA converter free?
Yes. Converting M4A to WMA on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).
Is my file kept after conversion?
No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.
What is the difference between M4A and WMA?
M4A and WMA are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the WMA format.