Trip fuel cost calculator
How much fuel the trip uses and what it will cost.
Fuel cost
Driving 280 mi uses 10 gal: $35.00 of fuel.
How this is calculated →- Fuel10 gal
- Total distance280 mi
- Cost per mile$0.13
How it works
Gallons = distance ÷ mpg; cost = gallons × price per gallon. Example: 280 miles at 28 mpg use 10 gallons; at $3.50 a gallon, $35.
Real economy changes with speed, traffic, load, air conditioning and terrain. Use your car's highway mpg for road trips.
Frequently asked questions
How do I find my car's real mpg?
Fill the tank, reset the trip meter, drive, fill up again: miles driven ÷ gallons added = mpg.
Are tolls included?
No. The calculator shows fuel only; add tolls and parking separately.
How can I use less fuel on a trip?
Keep a steady speed, check tire pressure and avoid carrying extra weight; at highway speeds, economy drops as speed rises.