Ride Forces Database is a website for coaster enthusiasts to share and browse g-force recordings of roller coasters. These recordings can be collected with the Ride Forces app on iOS, or within your browser on the record page on this site. This site is unaffiliated with the Ride Forces app.
See the Ride Forces Website's Guides for help obtaining properly calibrated recordings.
Please contact [email protected] with any questions, concerns, or suggestions about this site.
There are currently 2601 Ride Forces recordings of 503 unique rides (422 unique coasters) at 106 unique parks on RFDB.
2025-02-04: Added compare page to plot multiple recordings.
2025-01-31: Arrow keys to switch recordings.
2025-01-22: Added playback feature to view forces in realtime.
2025-01-18: Added manufacturer filtering on browse page.
2024-11-16: Show the recordings that the launches are from.
2024-10-16: Added window to select recording based on date.
2024-10-04: Show peak force statistics.
2024-10-02: Support for backwards lifts/launches.
2024-09-26: Download files as .zforces.
2024-09-24: Added support for uploading .zforces files.
2024-09-16: Added ability to edit calibration vectors.
2024-09-14: Added ability to record forces from site.
2024-09-01: Added support for downloading recordings.
2024-08-28: Browsing and submitting recordings finished.
2024-08-28: Added launch comparison feature.
2024-08-23: Initial release.
There have been several studies1,2,3 demonstrating that Phone and Watch accelerometers are accurate and reliable. However, the exact forces displayed on the graphs on this site should not be taken as the exact truth. This site performs smoothing of the accelerometer data to produce nicer graphs, which may degrade accuracy. Additionally, improper calibration of recordings, or a phone shifting or rotating in a pocket can result in flawed data.
If a recording shows a spike of 5g on a valley, that number should not be taken as the absolute truth. However, if multiple recordings consistently show that one hill on a ride is stronger than another, that can be safely assumed to be accurate. If multiple recordings show that one coaster's launch is significantly stronger than another, that can be trusted as factual too.
Ride Forces Database uses cookies to authenticate users. Your username and address are stored on our servers, and your password is hashed and salted.
Any recordings you upload will be stored on our servers. This includes the name and location in your recording, the date the recording was taken, the type of device the recording was taken on, and any attributes you added in the Ride Forces app. These recordings will be available for download, in their entirety, by other RFDB users.