Gas Cost Calculator
Figure out how much gas a trip will cost, and what each person owes if you split it.
Fuel cost$52.23
- Per person
- $52.23
- Gallons used
- 16.1
- Cost per mile
- $0.12
Fuel cost for a 450-mile trip
At $3.25 a gallon, one way:
| Fuel economy | Fuel cost | Per mile |
|---|---|---|
| 20 mpg | $73.13 | $0.16 |
| 25 mpg | $58.50 | $0.13 |
| 30 mpg | $48.75 | $0.11 |
| 35 mpg | $41.79 | $0.09 |
| 40 mpg | $36.56 | $0.08 |
| 50 mpg | $29.25 | $0.07 |
How it works
Gallons = miles ÷ mpg. Cost = gallons × price per gallon.
Tips
- Highway mpg is usually better than city mpg. Use the one that matches your trip.
- Gas prices vary by state. Check prices along your route.
Frequently asked questions
How do I find my car's real mpg?
Fill the tank, reset the trip meter, drive, then divide miles driven by gallons needed to refill.