Free Fuel Cost Calculator
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Fuel Cost Calculator

Calculate how much your trip, commute, or road trip will cost in fuel. Supports MPG, L/100km, and km/L with real-time results.

Input

Result

$14.00

estimated trip fuel cost

Fuel needed 4.00 gal
Cost per mile $0.14
Distance 100 mi

Common Trip Estimates

Based on your fuel efficiency and price

How to Use the Fuel Cost Calculator

Enter your trip distance, your vehicle's fuel efficiency (MPG or L/100km), and the current fuel price. The calculator instantly shows your total fuel cost along with cost-per-mile breakdowns and estimates for common trip distances.

Understanding Fuel Efficiency

Fuel efficiency measures how far a vehicle can travel on a given amount of fuel. In the US, it's measured in miles per gallon (MPG) — higher is better. In most other countries, liters per 100 kilometers (L/100km) is standard — lower is better. Toggle between units at the top of the calculator.

Average Fuel Costs by Vehicle Type

  • Compact car — 30-40 MPG, ~$0.09-$0.12/mile
  • Midsize sedan — 25-35 MPG, ~$0.10-$0.14/mile
  • SUV — 20-28 MPG, ~$0.13-$0.18/mile
  • Pickup truck — 15-22 MPG, ~$0.16-$0.23/mile
  • Hybrid — 45-60 MPG, ~$0.06-$0.08/mile

Tips for Saving on Fuel

Maintain steady highway speeds (55-65 mph is the sweet spot), keep tires inflated to spec, remove roof racks when not in use, combine errands to reduce cold starts, and compare gas prices at nearby stations. Small changes add up — improving from 25 to 30 MPG saves over $200/year at 12,000 miles.

Frequently Asked Questions

How do I calculate fuel cost for a trip?

Divide your trip distance by your vehicle's fuel efficiency (miles per gallon or liters per 100 km), then multiply by the current fuel price. Our calculator does this instantly — enter distance, efficiency, and price to get your total cost.

What is the average fuel cost per mile?

At $3.50/gallon with a 25 MPG vehicle, fuel costs about $0.14 per mile. This varies significantly based on fuel prices in your area and your vehicle's efficiency. Use our calculator with your specific values for an accurate estimate.

How much does it cost to drive 1,000 miles?

With a 25 MPG vehicle and gas at $3.50/gallon, driving 1,000 miles costs about $140. With a 30 MPG vehicle, it drops to $117. Enter your exact figures in the calculator above for a precise number.

How do I convert between MPG and L/100km?

To convert MPG to L/100km, divide 235.215 by the MPG value. For example, 25 MPG equals about 9.4 L/100km. Our calculator handles both units automatically — just toggle between imperial and metric.

How can I reduce my fuel costs?

Drive at steady speeds, keep tires properly inflated, reduce idling, remove excess weight, and use cruise control on highways. Regular maintenance also helps. Compare your current costs with a more efficient vehicle using our EV vs Gas comparison tool.