Auto Racing
Calculator inputs
Enter your race-car data, then select Calculate.
Race Corner Weight & Weight Distribution Calculator
Calculate total race weight, front/rear and left/right balance, individual corner percentages, and cross weight from four wheel scales.
Race setup results—Calculated from the values entered above.
Front / Rear—
Left / Right—
Cross weight (RF + LR)—
Cross vs target—
Formula
Cross % = (Right Front + Left Rear) ÷ Total × 100
Front, rear, left, right, and individual corner percentages are each calculated from the four scale readings.
How to use it
Scale the car in race-ready condition using the procedure appropriate for your series and setup method. Enter all four wheel weights. If you have a cross-weight target, enter it to see the difference from the current setup.
Understanding the result
Cross weight is only one setup measurement. Ride heights, tire pressures, driver weight, fuel load, spring platforms, sway bars, and track direction can all matter. Record the conditions each time you scale the car.
Important: Racing setup is vehicle-, tire-, track-, and rules-dependent. Treat calculated values as planning targets, not guaranteed safe settings.
Motorsports Learning & Resources
Continue learning with engineering, sanctioning, safety, and race-technology resources.
National Motorsport AcademyOnline motorsport engineering degrees and industry-led training.Purdue Motorsports EngineeringMotorsports engineering education, projects, and career pathways.SAE International – Vehicle DynamicsEngineering fundamentals for acceleration, braking, handling, steering, and suspension.Formula SAEStudent race-car engineering competition information and technical resources.OptimumGVehicle dynamics education, software, seminars, and engineering resources.Racecar EngineeringTechnical motorsport articles covering race-car design and technology.SCCASports Car Club of America competition, events, rules, and driver resources.NASA Pro RacingNational Auto Sport Association racing, time trial, HPDE, and competition resources.FIAInternational motorsport regulations, safety, and technical information.High Performance AcademyPractical performance-car tuning, wiring, data, suspension, and motorsport training.