Sim Racing Fuel Calculator
Calculate exactly how much fuel you need for any race. Supports sprint races, endurance events, and multi-stint strategy planning for iRacing, ACC, F1, and all major simulators.
Standard Fuel Calculator
Results
Advanced Multi-Stint Calculator
Stints
Results
How to Find Your Fuel Consumption Data
Accurate fuel calculations start with accurate data. Here's how to gather the information you need for each sim:
iRacing
Check the fuel usage in the F4 black box during practice. Run at least 5 laps at race pace to get an accurate average.
Assetto Corsa Competizione
Use the MFD (Multi-Function Display) to view fuel consumption. The "Fuel to End" calculation updates in real-time.
Gran Turismo 7
Check the post-race summary or use the HUD fuel gauge. Note that fuel consumption varies significantly with driving style.
F1 24/25
The MFD shows fuel usage per lap. Remember that fuel saving modes can reduce consumption by up to 30%.
rFactor 2
Enable the fuel display in the HUD settings. Most telemetry apps also track fuel consumption automatically.
Automobilista 2
Check the in-car display or use the pause menu telemetry. Fuel usage is shown per lap after completing a lap.
Tips for Accurate Data
- Use race pace, not qualifying pace: You'll use more fuel when pushing for a fast lap. Gather data at a sustainable race pace.
- Account for traffic: Racing in a pack with dirty air and overtaking uses more fuel than running alone.
- Consider track conditions: Wet tracks, temperature changes, and track evolution can all affect fuel consumption.
- Run multiple laps: A single lap isn't reliable. Average your consumption over at least 5-10 laps.
Typical Fuel Consumption by Car Class
Use these benchmarks as a starting point, but always verify with your own testing:
| Car Class | Typical Consumption | Notes |
|---|---|---|
| GT3 | 2.5 - 4.0 L/lap | Varies by track length and car model |
| GT4 | 2.0 - 3.0 L/lap | Generally more fuel efficient than GT3 |
| LMP2 / Hypercar | 3.5 - 5.5 L/lap | High consumption but large tanks |
| Formula Cars | 1.5 - 2.5 L/lap | Depends heavily on engine mode |
| Touring Cars | 2.0 - 3.5 L/lap | TCR and BTCC style vehicles |
| Road Cars / Street | 1.5 - 3.0 L/lap | Wide range depending on vehicle |
Fuel Strategy Tips
Why Add Extra Fuel?
Our calculator adds a 2-lap buffer to your fuel load. Here's why this matters:
- Formation laps: Many races include formation or pace laps that consume fuel but aren't counted in the race distance.
- Safety car periods: Extended safety cars mean extra laps at reduced pace but still burning fuel.
- Calculation margin: Small errors in lap time or consumption estimates can add up over a long race.
- Pushing on final laps: If you're battling for position, you might use more fuel than your conservative estimate.
Multi-Stint Strategy
For endurance races, consider these factors when planning your stints:
- Tire degradation: Tires typically last 45-90 minutes depending on the car and track. Plan fuel stops around tire changes.
- Undercut vs overcut: Pitting early (undercut) or late (overcut) relative to competitors can gain track position.
- Fuel weight: A full tank is heavy and slows you down. Some strategies use short-fueling to gain pace early in a stint.
- Pit window: In endurance races, there's often an optimal pit window. Use this calculator to plan your stops.
Common Mistakes to Avoid
- Using qualifying pace: Qualifying laps use significantly more fuel than race pace. Always use race data.
- Ignoring traffic: Solo practice doesn't account for the extra fuel used when racing in a pack.
- Forgetting the out lap: Your out lap after a pit stop uses fuel but might not be at full race pace.
- Not accounting for conditions: Night sessions, rain, and temperature changes all affect consumption.
Calculator inspired by SimRacingCockpit.gg
Level Up Your Sim Racing Setup
Fuel strategy gets you to the finish line — but the right hardware gets you there faster. If you're running endurance races, your pedals and rig matter more than you think.
You've Nailed the Fuel. Now Nail the Braking.
Fuel strategy gets you to the finish — but brake feel gets you there faster. Our hydraulic sim racing pedals give you real pressure modulation so you can trail-brake with confidence, not guesswork. Pure hydraulic. No load cells.
