Stop guessing how much fuel to load. Enter your race length, lap time and fuel per lap: you get the race laps, the fuel to put in and how many pit stops you need. Works for Assetto Corsa, ACC, iRacing, Le Mans Ultimate and any sim that shows fuel per lap.
SimRacing Planner PRO adds fuel mass effect, pit-lane loss, tyres, rain and a 1 vs 2 vs 3-stop comparison. For iRacing, ACC, AC, rFactor 2, AMS2, RaceRoom and Le Mans Ultimate.
One-time payment · 14-day money-back guarantee
Enter lap time, race duration and fuel consumption — Planner PRO calculates the exact fuel load for every pit strategy scenario.
As fuel burns off the car gets lighter and faster. Planner PRO models this per-stint so your lap time predictions are accurate — not just a flat average.
Every pit stop costs time. Planner PRO includes the real pit-lane loss for your track in the strategy calculation, so you only stop when it actually saves time.
Model wet-weather scenarios with different tyre compounds and lap time deltas. See exactly when switching to slicks or wets pays off.
Interactive charts compare 1-stop vs 2-stop vs 3-stop strategies side by side. Pick the fastest option before the race starts, not during it.
No spreadsheets. No manual formulas. Enter your race parameters and Planner PRO outputs the optimal strategy instantly.
Divide the race length by your average lap time and round down, then add one lap, because you finish the lap you are on when the clock runs out. Multiply those laps by your fuel per lap and add at least one extra lap as a safety margin. The free calculator above does it for you. SimRacing Planner PRO goes further, adding fuel mass effect and pit-lane loss time.
As fuel burns off your car gets lighter and progressively faster each lap. Planner PRO accounts for this in per-stint lap time calculations, so strategy reflects real race pace — not a flat average.
It depends on race length, fuel tank size, tyre wear and pit-lane loss time. Planner PRO calculates every possible pit strategy automatically and shows you a comparison chart so you can pick the fastest option.
Yes. You can model wet-weather scenarios with different tyre compounds and adjusted lap time estimates to find the optimal moment to change tyres.
It's a one-time payment of €12.00 with no subscription. You own it permanently and get all future updates included.
One-time payment · No subscription · Works with all Assetto Corsa cars and tracks
Get SimRacing Planner PRO — €12.0014-day money-back guarantee
Prefer to understand the formula and do it manually? We wrote a full guide explaining exactly how to calculate fuel for any race in Assetto Corsa, plus common mistakes and safety margins by race length.
Read the Assetto Corsa Fuel Calculator guide →