How Fuel Cost Is Calculated
Fuel cost depends on three main factors: the distance you're traveling, your vehicle's fuel efficiency (measured in miles per gallon), and the current price of fuel. By dividing the trip distance by your MPG, you get the gallons needed. Multiply by the fuel price to get your total cost.
If you're splitting costs with passengers, the per-person cost makes ride-sharing significantly cheaper than driving alone. This calculator also provides round-trip estimates so you can budget for the full journey.
Fuel Cost Formulas
Fuel Cost Comparison by Vehicle
| Vehicle Type | MPG | 500 mi Cost | 1000 mi Cost |
|---|---|---|---|
| Compact Car (35 MPG) | 35 | $50.00 | $100.00 |
| Sedan (28 MPG) | 28 | $62.50 | $125.00 |
| SUV (22 MPG) | 22 | $79.55 | $159.09 |
| Truck (18 MPG) | 18 | $97.22 | $194.44 |
| Hybrid (50 MPG) | 50 | $35.00 | $70.00 |
Frequently Asked Questions
How can I reduce my fuel costs?
Drive at moderate speeds (55-65 mph is optimal for most cars), avoid rapid acceleration, keep tires properly inflated, remove excess weight, and use cruise control on highways. Regular maintenance also keeps your engine running efficiently.
Should I use regular or premium gas?
Use the octane level recommended in your owner's manual. Most cars run fine on regular (87 octane). Using premium when not required does not improve performance or fuel economy, it just costs more.
Is it cheaper to fly or drive?
For solo travelers, flying is often cheaper for trips over 300 miles. For families or groups, driving becomes more economical since fuel costs are shared but airline tickets multiply per person.