Assetto Corsa Fuel Calculator
Use your practice data to estimate total fuel, safety margin, and a basic pit strategy for both timed and lap races.
For timed races, lap time is required. For lap-limited races, it can be left empty.
Why fuel planning matters in Assetto Corsa
In Assetto Corsa, pace and consistency are only part of race performance. Fuel planning is just as important. If you run too little fuel, you risk coasting to a stop on the final lap. If you run too much, you carry unnecessary weight that slows braking, corner entry, and tire life.
A good fuel plan balances three things: enough fuel to safely finish, minimal extra mass, and a pit strategy that matches your tank size and race format. This page gives you a practical calculator plus a method you can repeat every event.
How this fuel calculator works
The calculator uses the same basic math most sim racers apply manually:
- Total laps = planned race laps (or estimated timed-race laps) + extra laps.
- Base fuel = total laps × liters per lap.
- Fuel target = base fuel × (1 + safety margin).
- Fuel to add = fuel target − starting fuel (never below zero).
If you enter tank capacity, it also estimates minimum pit stops and a simple fuel-per-stint target.
Timed race logic
For timed races, lap count depends on average lap pace. The tool divides race time by lap time, rounds up, and can optionally add one extra lap because many sessions continue until the leader completes the lap after the timer hits zero.
Lap-limited race logic
If you enter planned laps, the calculator uses that directly. This is usually more accurate for fixed-lap championships.
How to collect accurate data in practice
Better inputs produce better fuel strategy. Use this quick routine before qualifying or race start:
- Run 4–6 consecutive clean laps at expected race pace, not hotlap pace.
- Note average lap time and average fuel burn per lap from your app/telemetry.
- Repeat with race setup (same aero, tire compound, brake ducts, and engine map).
- If weather mods or track temp are dynamic, include a larger safety margin.
Many fuel mistakes happen when drivers use qualifying laps to estimate race consumption. Drafting, traffic, and lift-and-coast all change real race usage.
Example scenarios
Scenario 1: 20-lap sprint race
- Fuel per lap: 2.60 L
- Planned laps: 20
- Extra laps: 1
- Margin: 5%
Base fuel = 21 × 2.60 = 54.6 L. With margin, target is 57.33 L. Start near 58 L for a safe finish.
Scenario 2: 45-minute race with pit stop
- Average lap: 1:50.000
- Fuel per lap: 3.10 L
- Race duration: 45 min
- Extra lap enabled + 1 manual extra lap
- Tank: 65 L
The tool estimates race laps, calculates total target fuel, and then checks if 65 L can finish without stopping. If not, it returns minimum pit stops and suggested fuel per stint.
Pit strategy and tank size
Tank capacity determines whether one-stop or no-stop is possible. In Assetto Corsa races with refueling enabled, the fastest strategy is not always “fewest stops.” Sometimes a short-fill strategy keeps car weight lower and improves lap time enough to offset pit lane loss.
Use this calculator as a baseline, then refine with stint simulations:
- Compare full-tank pace versus short-fill pace.
- Estimate pit lane time loss on your track/server rules.
- Test tire wear overlap with fuel stints.
Common fuel planning mistakes
- Ignoring the final timed-race lap: often causes last-lap fuel starvation.
- No safety margin: small mistakes, battles, or pace changes can invalidate perfect math.
- Using one-lap data: always average multiple laps.
- Forgetting formation/out laps: these laps still burn fuel.
- Not accounting for setup changes: wing, gear ratio, and map changes alter consumption.
Recommended safety margin by race type
- Short sprint (10–20 min): 3–5%
- Medium race (20–45 min): 5–7%
- Endurance / changing conditions: 7–10%
If you are new to fuel strategy, start with 7% and reduce as your confidence and consistency improve.
FAQ
Does this work for Assetto Corsa Competizione too?
The core math is the same, but this page is tuned for Assetto Corsa usage. ACC has different race rules and telemetry flows, so always verify in-session.
Should I calculate with race pace or qualifying pace?
Use race pace. Qualifying pace usually overstates fuel burn and understates total laps in traffic scenarios.
What if I entered both laps and race minutes?
The calculator prioritizes planned laps. Remove lap count if you want a timed-race estimate.
With a repeatable process and this calculator, your fuel strategy becomes predictable and stress-free—so you can focus on consistency, tire management, and racecraft.