Paddock tools · free
Do the maths in the paddock.
Quick, accurate calculators for the questions you ask between sessions. No sign-up. Your inputs stay in your browser.
- Gear ratio & speed calculatorWork out top speed in every gear, engine RPM at any speed and the RPM drop on each upshift from your tire size, gear ratios and final drive.Open →
- Hot / cold tire pressure calculatorPredict hot tire pressure from your cold setting and temperatures, or work back from a hot target to the cold pressure to set in the paddock.Open →
- Corner weight & cross weight calculatorEnter the four scale readings to get total weight, front and left percentages and cross weight, and see which way to adjust ride heights.Open →
- Fuel calculatorHow much fuel you need for a session or stint, from your lap time, consumption per lap and session length, with a safety margin.Open →
- Lap time & average speed calculatorConvert lap time to average speed and back for any track length, and see how far behind a tenth of a second puts you.Open →
- Car setup sheetA free setup sheet for track days: tire pressures and temperatures, alignment, ride height, dampers and notes. Saves in your browser and prints cleanly.Open →