Fuel Cost Calculator

Free fuel cost calculator for road trips and daily commutes. Enter distance and fuel efficiency to calculate total fuel needed and cost. Plan multi-stop trips, estimate annual fuel expenses, compare fuel efficiency levels, and calculate CO2 emissions. Supports US and metric units.

Distance (miles)

Fuel Efficiency (MPG)

Fuel Price (per gallon)

Round Trip (2x distance)Multi-Stop Trip Planner

Enter distance, fuel efficiency, and fuel price above to calculate your trip cost.

Annual Commute Cost Estimator

Enter your one-way commute distance. Round trip is calculated automatically.

One-Way Distance (miles)

Frequency

Common Fuel Prices Reference

Approximate averages. Prices vary by location and time.

Click a price to use it. Values are automatically converted to your selected unit system.

How to Use Fuel Cost Calculator

1Enter trip distance, fuel efficiency, and fuel price.
2Toggle round trip if needed.
3View total fuel needed, cost, and cost per mile/km.
4Add multiple stops for a complete trip plan.

Frequently Asked Questions

How do I calculate fuel cost for a trip?▾

Divide the trip distance by your vehicle's fuel efficiency (MPG or km/L), then multiply by the fuel price per gallon or liter.

What is good fuel efficiency?▾

For cars, 25-30 MPG (8-9 L/100km) is average. Hybrids achieve 40-60 MPG, and EVs equivalent exceeds 100 MPGe.

How much CO2 does driving produce?▾

Burning one gallon of gasoline produces approximately 8.89 kg of CO2. A 30 MPG car emits about 296g CO2 per mile.

About Fuel Cost Calculator

NexTool's Fuel Cost Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.