Fuel cost for a 650 km round trip
A complete metric example using kilometres, L/100 km, price per litre, and a round-trip multiplier.
Open exampleWorked trip totals
Follow the arithmetic from road to receipt
Two realistic examples show metric and US inputs, round trips, volume, and cost.
A 300-mile road trip at 30 US MPG
A complete example using miles, US MPG, and a price per US gallon.
Open example