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Motorsport Fuel Window Planner

Plan motorsport fuel windows from current fuel, fuel burn, reserve, tank capacity, and refuelling stops.

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Fuel window planner

Motorsport Fuel Window Planner

Enter current fuel, fuel burn per lap, reserve, and refuelling stops to see safe pit windows and projected finish fuel.

Race conditions

Key results

Current-fuel safe limit

Pit lap 44

Reserve risk

Fuel needed to finish

113.8 L

44 Laps

Extra fuel needed

41.8 L

Fuel added (L)

Projected finish fuel

34.2 L

Safe

Refuel + pit time

79.8s

70 L Fuel added (L)

Refuelling plan

Enter current fuel, fuel burn per lap, reserve, and refuelling stops to see safe pit windows and projected finish fuel.

Pit lapFuel added (L)NoteRemove

Lap-by-lap fuel flow

FromToLapsStart fuelFuel before stopFuel added (L)Fuel after stopStatus
18341672 L32.8 L42 L74.8 LSafe
34481474.8 L40.5 L28 L68.5 LSafe
48621468.5 L34.2 L0 L34.2 LSafe

Tips

  • Use a conservative fuel-burn number based on recent long runs.
  • Reserve should include the in-lap after the flag and any scrutineering fuel requirement.
  • If fuel after a stop exceeds tank capacity, reduce the planned fuel add or move the stop.

How to calculate a motorsport fuel window

Enter total laps, current lap, current fuel, burn per lap, reserve fuel, and refuelling stops. The tool estimates the latest safe pit lap, fuel shortage, stint flow, and projected finish fuel.

Usage notes

  • Enter total laps, current lap, current fuel, and fuel burn per lap.
  • Add reserve fuel, tank capacity, pit loss, and planned refuelling stops.
  • Review the safe fuel limit, shortage, refuelling time, and finish fuel.

Frequently asked questions

Is this a substitute for team telemetry?expand_more

No. Use it as a planning helper and confirm final numbers with your team data, track conditions, and regulations.

Can I use it for no-refuel races?expand_more

Yes. Leave the stop list empty and it will show whether the current fuel can reach the finish with reserve.

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