Professional VW Transaxle Calculator and Racing Tools
Welcome to our VW transaxle speed and gear ratio calculator. Whether you are building a classic air-cooled VW Beetle, Bus, Karmann Ghia, or racing a modified Type 1 transaxle, our calculator helps you determine the perfect gear ratios and tire combinations for your specific application.
Our calculator supports both standard metric tires and American racing slicks, includes a database of factory VW transaxle codes like AT, AH, and DG, and features Finnish race gear configurations popular in European VW racing circuits.
Key Features
- Calculate speed at any RPM across all four gears
- Compare metric and slick tire sizes side-by-side
- Database of VW transaxle codes (AT, AH, DG, and more)
- Finnish race gear configurations
- Reduction gear ratio support
- Interactive speed charts
Engine Calculator
Calculate displacement, compression ratio, deck height, and chamber volume for your VW engine build.
Go to Engine Calculator →VW Retro Arcade Games
Take a break with our VW-themed arcade games including Munch Bug, Aircooled Panic, Snorkelstang Defender, and more!
Play VW Arcade Games →Featured Video: VW Transaxle Rebuild
Watch this detailed build video from RANCHO that walks through the complete assembly, inspection, and reassembly process.
Watch the VW Transaxle build video →