AMR
WMA

Convert AMR to WMA Online

Convert AMR to WMA online. Start with free daily conversions, no install, no watermarks, and visible job status.

AMR to WMA Converter

Upload your AMR file to convert it to WMA format

Loading converter...

How to Convert AMR to WMA

Follow these simple steps

1

Step 1: Upload Your File

Upload your AMR file by dragging and dropping or clicking to browse

2

Step 2: Select Output Format

WMA is automatically selected as the output format

3

Step 3: Start Conversion

Click the Convert button to start the conversion

4

Step 4: Download Result

Download your converted WMA file when ready

Convert AMR to WMA - Complete Guide

Converting AMR to WMA stays in the audio file family but changes the traits that decide size, quality, transparency, editability, or device support. AMR is a audio format. Adaptive Multi-Rate. WMA is a audio format. Windows Media Audio. Below is what actually changes in a AMR→WMA conversion, what is preserved, and when WMA is the better choice than keeping AMR.

What changes when you convert AMR to WMA

  • Both AMR and WMA are lossy, so the file is re-compressed during conversion. Keep the output quality or bitrate at or above the source to avoid a visible or audible drop.
  • The audio is re-encoded into the WMA format. Because re-encoding is not free, start from the highest-quality source you have and keep quality settings high.

About the AMR format

AMR (Adaptive Multi-Rate) is an audio format optimized for voice recordings. It is commonly used by mobile phones for voice memos and recordings.

  • Full name: Adaptive Multi-Rate
  • Developer: 3GPP
  • Compression: Lossy compression
  • Opens with: VLC, QuickTime, FFmpeg

Where AMR is strong: very small files optimized for speech; the standard codec for mobile voice recordings; low bitrate ideal for narrow bandwidth.

Typical AMR uses: phone voice recordings, voicemail and push-to-talk audio, MMS voice messages.

About the WMA format

WMA (Windows Media Audio) is Microsoft's audio format. While native to Windows, it has limited compatibility elsewhere. Our converter transforms WMA to universal formats.

  • Full name: Windows Media Audio
  • Developer: Microsoft
  • Compression: Lossy/Lossless
  • Opens with: Windows Media Player, VLC

Where WMA is strong: compact audio from the Windows ecosystem.

Typical WMA uses: legacy Windows audio.

What WMA keeps

  • WMA adds: compact audio from the Windows ecosystem.

Things to watch out for

  • One WMA limitation to keep in mind: poor support outside Windows.

When to convert AMR to WMA

  • Convert AMR to WMA for legacy Windows audio.

AMR vs WMA — format comparison

A quick side-by-side of the structural differences between AMR and WMA, so you can confirm this is the right conversion for your file:

AttributeAMRWMA
TypeAudio fileAudio file
CompressionLossyLossy
Web-friendlyNoNo
Typical file sizeSmallSmall
Best forphone voice recordingslegacy Windows audio

Privacy & Security

Files are handled for the conversion you request. Uploads and downloads use HTTPS/TLS, and temporary files are cleared after the processing and deletion window.

Add this AMR to WMA converter to your site

Put a working AMR to WMA converter on your own blog or website — free to embed. Both options below include a small link back to FreeFastConverter.

Embeddable widget (iframe)

Paste this where you want a live converter. Visitors can convert AMR to WMA without leaving your page:

Widget Embed Codeiframe

Simple link badge

Prefer a lightweight button instead? Copy this HTML badge:

HTML Badge CodeLink

Need the opposite conversion?

Convert WMA to AMR

AMR to WMA FAQ

Because both formats are lossy, the file is compressed again. Keep the output quality or bitrate at or above the AMR source and the difference will be minimal.
Upload your AMR file, confirm WMA as the output format, and click Convert. Job status is shown while the file is processed, then you can download the WMA result.
Yes. You can start with free daily conversions, with no signup required for your first jobs and no watermarks on the output. Accounts and paid plans are available for higher-volume work.
No. The AMR to WMA conversion runs in your browser on any device — Windows, Mac, Linux, iOS, or Android — with uploads and downloads over HTTPS.
AMR (Adaptive Multi-Rate) is an audio file format. AMR files can be played with various audio players and media applications.
Upload your AMR audio file to the converter, select your desired output format, and click Convert. The job status appears while the audio is processed.
You can start with free daily conversions. Accounts and paid plans are available for higher-volume work, and downloaded files are not watermarked.
You can convert AMR to proof-backed audio outputs such as MP3, WAV, AAC, OGG, FLAC, M4A, WMA, AIFF, OPUS, AC3, AMR, AU, CAF, MKA, WV, SPX, OGA, DTS, and MP2 when the source format is public-supported.
Yes! Our AMR converter works on any device including smartphones and tablets.
Choose the bitrate or output setting that fits your file-size and playback needs. Lossy formats can reduce detail compared with the source.

Related tools

Convert AMR to WMA Now

Start with 10 free daily conversions. No signup required for your first file jobs.