Fuel Cost Calculator

Calculate total fuel expense for road trips or annual driving based on gas price, distance, and vehicle fuel economy (MPG or L/100km).

How to use this calculator

1. Select unit system.
2. Enter trip distance, MPG, and gas price.
3. Read trip cost and annual gas expense.

Formula & method

Fuel Cost Formula

Cost = (Distance / MPG) × Gas Price

Fuel expenditure math.

Example

150 mi / 28 MPG = 5.36 gal × $3.50 = $18.75.

Key insights

• Driving 65 mph uses 15% less gas than 75 mph.

How to interpret your result

Trip Cost

Fuel money needed for trip.

Frequently asked questions

MPG to L/100km?

235.215 / MPG = L/100km.

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