Fuel Cost Calculator

Automotive Tools

Estimate how much a trip will cost in fuel based on your vehicle’s fuel efficiency, distance, and gas price. Supports MPG and km/L, gallons and liters, USD or local currency.

How to Use Fuel Cost Calculator

Enter your travel distance, vehicle fuel efficiency (MPG or km/L), and current fuel price. Choose trip type (one-way or round-trip), select your unit preferences, and get your estimated fuel cost.

Frequently Asked Questions

How do I calculate fuel cost for a trip?

Enter the total distance you’ll travel, your vehicle’s fuel efficiency, and the cost of fuel. The calculator multiplies fuel needed by fuel price to give your total fuel cost.

What’s the difference between MPG and km/L?

MPG (miles per gallon) is commonly used in the US, while km/L (kilometers per liter) is used in many other countries. The calculator supports both for international use.

Can I calculate round-trip costs?

Yes, you can choose between one-way or round-trip. The calculator automatically doubles the distance for round-trips.

If gas cost $3.50 per gallon, how much would it cost to drive 500 miles?

Assume a fuel efficiency of 25 mpg for a typical car, 500 miles ÷ 25 MPG = 20 gallons needed. 20 × $3.50 = $70.00.

Is this calculator accurate?

It gives a very close estimate based on your inputs. Real-world variations (traffic, AC use, etc.) may affect actual fuel usage slightly.

Can I use this for electric vehicles?

Electric vehicles use kWh instead of fuel. This calculator is best for gasoline or diesel-powered vehicles. An EV cost calculator is coming soon.