Auto Racing
Calculator inputs
Enter your race-car data, then select Calculate.
Race Fuel Strategy & Pit Stop Calculator
Plan race fuel, stint length, pit-stop count, pit windows, and finish reserve from fuel burn per lap and usable tank capacity.
Race setup results—Calculated from the values entered above.
Max laps per full tank—
Fuel stops—
Pit after lap(s)—
Estimated pit + refuel time—
Formula
Total fuel = fuel/lap × (race laps + reserve laps)
Maximum full stint = floor(usable tank ÷ fuel/lap)
How to use it
Use the same fuel unit for burn, tank capacity, and refueling rate. Reserve laps add a safety margin beyond the scheduled race distance. The calculator builds a simple stint plan and estimates stationary/refueling time.
Understanding the result
The longest stint is limited by usable tank capacity. The suggested pit laps are planning windows; cautions, safety cars, traffic, weather, minimum stop times, and series rules can change the optimal strategy.
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.