Click the "Select File" button above, and choose your RKG file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert RKG to another file type
To convert RKG ghosts to another format, you need Dolphin Emulator or other Game software.
Convert a file to RKG
To convert other file formats to the "Time Trial Ghost Data" file type, you need software like Dolphin Emulator or a similar tool.
About RKG files
The .RKG file is a Mario Kart Wii Time Trial Ghost. It stores the exact sequence of controller inputs, character choice, vehicle selection, and lap splits recorded during a time trial race. It is not a media file; it is purely game engine telemetry meant to be loaded by the game engine to replicate the exact race.
Players typically manage these files using an SD card on a modified Nintendo console (often running CTGP Revolution) or load them directly into Dolphin Emulator on a PC. For broader context on the hardware ecosystem, Wikipedia documents the Wii console history.
The main disadvantage of the .RKG format is its proprietary, closed-source nature. It relies entirely on the internal physics engine of Mario Kart Wii to be interpreted. A major real-world frustration is that users want to convert their speedruns from .RKG to MP4 to upload to YouTube. This is impossible for standard converters because the file contains zero video or audio frames - only hexadecimal coordinate and input data.
The most pragmatic conversion targets are text-based formats. By parsing the file's header, metadata can be converted to TXT, JSON, or CSV to read lap times, driver profiles, and controller types. True video conversion requires manual screen recording during emulator playback.
This file format is exceptionally difficult to open or convert. Emphasize that often only the original software can properly read or export the data. Standard online converters fail completely because they expect standard media codecs. We can inspect the file and show text or internal content. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your RKG file, detects the exact format, and lets you read the text inside.
If you want to convert RKG file to EXE, ISO, BIN, CUE, PAK, WAD, PK3, PK4, BSP, MAP, SAV or DAT, you can use Dolphin Emulator or similar software from the "Game Replay Data" category. In the File menu, look for Save As… or Export….
To convert MOD, BIN, CFG, SCX, DAT, MPQ, LOG, CUE, INI, EXE, SCM or ISO files to RKG, try Dolphin Emulator or another comparable tool in the "Game Replay Data" category.
The RKG Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our RKG converter.