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Fuel Cost Calculator
Calculate the total fuel cost and consumption for any trip, in metric (L/100km) or imperial (MPG) units.
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Formula
Metric: Fuel Used = Distance (km) / 100 × L/100km
Imperial: Fuel Used = Distance (miles) / MPG
Total Cost = Fuel Used × Price per UnitFrequently Asked Questions
Liters per 100 kilometers is the standard fuel efficiency metric used in most countries. Lower is better — a value of 6 means your car uses 6 liters to travel 100 km.
Divide 235.214 by the MPG value. For example, 30 MPG ≈ 7.84 L/100km.
Use whatever grade your vehicle requires. Enter the actual price you pay at the pump for the most accurate result.
Authoritative References & Standards
- Transportation Energy Data & Fuel Economy Metrics ↗U.S. Department of Energy
Official fuel economy formulas and driving efficiency guidance.