Analyze laps, plan fuel, and compare gearing with these motorsports and racing calculators. Choose a tool for recorded results or a clearly defined race scenario.
Lap Analysis
Calculate average lap time or speed, reverse-solve a missing quantity, and measure the spread of individual recorded laps.
Race Planning
Estimate fuel from distance or duration, compare a dial-in reference with time slips, or check a finish against a supplied iRating expectation. The iRating tool provides an unofficial position comparison and does not calculate official rating points.
Gearing
Compare a kart sprocket reduction or calculate first-gear and axle multiplication with a tire-size adjustment.
Vehicle Speed from RPM and Gearing
For vehicle speed from engine RPM, transmission ratio, axle ratio, and tire size, use the existing RPM Tire Size Calculator. Find other vehicle tools in Automotive Calculators.
Keep Comparisons Consistent
Use the same timing boundaries, lap selection, course configuration, and units when comparing results. Gearing speeds assume a defined mechanical relationship and rolling circumference. Fuel estimates depend on the entered consumption and race-length assumptions. Recorded time-slip comparisons describe past passes.