How do I calculate the fuel cost of a trip?

Multiply trip distance (km) × consumption (l/100km) / 100 × fuel price ($/l). Example: 300 km × 6 l/100km / 100 × $1.75/l = $31.50.

What is the average fuel consumption of a car?

Gasoline cars typically use 5–9 l/100km in city driving and 4–7 l/100km on the highway. Diesel cars consume about 10–20 % less. Hybrids use 3–6 l/100km and full electric cars 15–25 kWh/100km.

Is an electric car cheaper to drive than a gasoline car?

Usually yes. Electricity typically costs 15–25 cents/kWh and an electric car uses 15–25 kWh/100km, so the cost is 2.25–$6.25/100km. A gasoline car at 6 l/100km × $1.75/l = $10.50/100km. The saving can be 4–$8/100km.

How do I reduce my car fuel costs?

Anticipatory driving (avoid unnecessary acceleration and braking), correct tire pressure (under-inflation increases consumption by 3–5 %), removing extra cargo, considered use of air conditioning and keeping motorway speed below 110 km/h have the greatest effect on consumption.

Fuel Cost Calculator

Name: Fuel Cost Calculator
Author: Miikka

Calculate the cost of any drive based on distance, fuel consumption and current fuel price.

By Miikka · CalcBrew · Updated Sep 16, 2026

Fuel economy (mpg): 33.6 mpg

Fuel price ($/gal): 3.50 $/gal

Distance (miles): 200 mi

Miles per month: 1,000 mi/month

$20.83

Trip 200 mi

$10.42

$/100 mi

$104.16

Monthly cost (1000 mi)

$1,249.92

Annual cost

Compare fuel types: 1000 mi/month

Type	$/month	$/year
Gasoline 34 mpg	$104.16	$1,249.92
Diesel 39 mpg	$96.93	$1,163.19
Electric 29 kWh/100 mi	$49.25	$590.95
Electric, cheap power (12¢/kWh)	$34.76	$417.14

Prices are indicative. Check current fuel prices at your local station.

The fuel cost calculator estimates what a trip's fuel will cost for a given distance and consumption. It's useful for planning commutes, holiday drives and the cost of shared rides.

How the calculator works and what it’s for▾

How fuel cost is calculated

Fuel use is found by multiplying the distance by the car's consumption per hundred kilometres. Multiply that by the price per litre and you get the cost of the trip.

A longer distance or higher consumption raises the cost in direct proportion.

What you enter and get

You enter the trip distance, the car's average consumption and the price of fuel. The result is an estimate of the fuel needed and the total cost of the journey.

Who it helps

The calculator helps commuters, holiday planners and anyone splitting a carpool. It makes it easy to share fuel costs between passengers or compare the price of different routes.

Tips for a sharper estimate

Use your car's real average consumption from the trip computer, since it reflects your driving better than the manufacturer's figure. Remember that motorway driving, city traffic and a heavy load all affect consumption noticeably.

🔄 Reviewed June 2026

Frequently asked questions

Cite this calculator

APACalcBrew. (2026). Fuel Cost Calculator. https://calcbrew.com/fuel-cost-calculator

MLA“Fuel Cost Calculator.” CalcBrew, 2026, calcbrew.com/fuel-cost-calculator.

Link to https://calcbrew.com/fuel-cost-calculator. Results are estimates; cite the underlying formula or data source for academic work.

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