Chainring Sprocket Calculate Gear Inches Development (m) - 700 x 23C Cadence (RPM) KPH MPH Race Distance 500m 750m 1000m 2000m 3000m 4000m 250m Start Lap Time (seconds) Calculate Race Times Total Race Time: 250mm Average Lap Time (excluding first lap): Click here to discover how to turn this site into an app on your phone. Troubleshooting for technical issues: If the calculator does not run, refresh your web browser and try again. The calculator may not work on some unsupported web browsers. We recommend Google Chrome.
The old one was better giving more info on laps ect.