Calculate trip fuel costs with vehicle presets, round-trip toggle, passenger split, and side-by-side vehicle comparison.
What is Fuel Cost Calculator?
Enter your trip distance, fuel efficiency, and gas price to instantly see your total fuel cost, gallons needed, cost per mile, and CO₂ emissions. Choose from vehicle type presets, toggle round-trip, split costs among passengers, and compare costs across different vehicle types — all with real-time animated results.
How to Use
Select a vehicle type or enter custom fuel efficiency
Set your trip distance with the slider
Enter current gas price
Toggle round-trip and split among passengers
Frequently Asked Questions
How is CO₂ calculated?
We use the EPA estimate of 8.887 kg of CO₂ per gallon of gasoline burned.
Can I switch between miles and kilometers?
Yes, use the unit toggle at the top to switch between imperial (miles/gallons) and metric (km/liters). All values convert automatically.
Related Tools
🚗 Auto Loan Calculator — Calculate monthly car payments with down payment, trade-in value, sales tax, and flexible loan terms.
💰 Tip Calculator — Calculate tips and split bills instantly. Adjust tip percentage with a slider and divide among any number of p
⚡ Electricity Cost Calculator — Calculate electricity costs and CO₂ impact for any appliance or your whole household. 9-country localization,
🎂 Age Calculator — Free age computation tool — calculate age from date of birth in years, months, days, hours, and minutes with f
% Percentage Calculator — Calculate percentages instantly — find X% of Y, percentage change, increase/decrease by %, and what percent X