Convert RealMedia Variable Bitrate (.rmvb) to Audio Video Interleave (.avi) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .rmvb file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .avi file when it's ready.
AVI (Audio Video Interleave) is Microsoft's classic multimedia container from 1992, using the RIFF format with interleaved audio/video chunks. RMVB used RealNetworks' proprietary container with RealVideo/RealAudio codecs. Converting RMVB to AVI moves content from a largely obsolete streaming format into a container that every Windows PC, hardware media player, and legacy video tool supports natively. This was one of the most common conversions in the 2000s when RMVB files were widespread but Windows-only playback was needed.
AVI is the most universally supported video container on Windows — playable by Windows Media Player since Windows 3.1 without any additional codecs (when using common video codecs like Xvid). RMVB requires RealPlayer or third-party decoders. For users migrating legacy RMVB collections to a Windows-native format, AVI with Xvid is the classic solution.
FFmpeg decodes the RealVideo stream (RV8/9/10) and RealAudio track, then re-encodes to MPEG-4 Part 2 (Xvid) for video and MP3 at 128 kbps for audio. The output is muxed into AVI's RIFF container with an index for seeking. For files over 2 GB, OpenDML (AVI 2.0) extensions are used automatically.
Xvid in AVI produces comparable or slightly better quality than the original RMVB at similar bitrates. RMVB's RealVideo 9 and Xvid are roughly equivalent in compression efficiency — both are MPEG-4 Part 2 era codecs. The conversion is largely a container and codec brand change rather than a quality change.
| Device | RMVB | AVI |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
RMVB to AVI conversion is the straightforward path from RealMedia to Windows-native video. The AVI/Xvid combination ensures universal playback on Windows systems and hardware media players without any codec installation.
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| No |
| الميزة | RMVB | AVI |
|---|---|---|
| الاسم الكامل | RealMedia Variable Bitrate | Audio Video Interleave |
| الامتداد | .rmvb | .avi |
| الأفضل لـ | Variable bitrate | Windows native |