Gas Mileage Calculator

Gas Mileage Calculator

Calculate your vehicle's fuel economy from distance traveled and fuel consumed, with optional trip cost analysis.

Capabilities

• Dual metrics: Shows MPG, L/100km, and km/L regardless of input units.
• Trip cost: With fuel price, calculates total cost and cost per mile/km.
• Unit flexibility: Input distance in miles or km, fuel in gallons or liters.

Gotchas

• Distance and fuel must be positive: Zero or negative values are rejected.
• Fuel price is per unit: If you input gallons, the price is per gallon. If liters, per liter.
• Precision: Results rounded to 2 decimal places.