Fuel Cost Calculator
Quick Tips
Save Money
Plan your route to minimize distance and avoid traffic.
Track Usage
Keep track of fill-ups to monitor your actual MPG over time.
Average Gas Prices
*Prices vary by region
Related Calculators
Calculating Fuel Costs
Fuel Cost Formula
Calculating fuel cost is straightforward: divide the trip distance by your vehicle's fuel efficiency, then multiply by the price per gallon.
Formula (US Units)
Formula (Metric Units)
Factors Affecting Fuel Cost
Vehicle Factors
- Engine size and type
- Vehicle weight
- Tire pressure
- Aerodynamic design
- Maintenance condition
Driving Factors
- Highway vs. city driving
- Driving speed
- Traffic conditions
- Use of A/C or heat
- Cargo weight
Trip Cost Comparison
| Trip | 25 MPG | 35 MPG | 50 MPG |
|---|---|---|---|
| 100 miles | $14.00 | $10.00 | $7.00 |
| 500 miles | $70.00 | $50.00 | $35.00 |
| 1000 miles | $140.00 | $100.00 | $70.00 |
*Based on $3.50/gallon gas price
Money-Saving Tips
- Use gas price apps to find the cheapest nearby stations
- Fill up early in the week (prices often rise toward weekends)
- Consider a fuel rewards credit card for cashback
- Join gas station loyalty programs for discounts
- Plan routes to minimize distance and avoid traffic
Frequently Asked Questions
How do I calculate fuel cost for a trip?
Divide your trip distance by your vehicle's MPG to get gallons needed, then multiply by the price per gallon. Formula: (Distance / MPG) x Price = Fuel Cost. For example, a 300-mile trip at 30 MPG with $3.50 gas costs $35.
What factors affect fuel cost the most?
The biggest factors are distance, vehicle fuel efficiency (MPG), and gas prices. Driving habits also matter - aggressive acceleration, speeding, and excessive idling can reduce MPG by 15-33% and significantly increase costs.
Is it cheaper to drive or fly?
For solo travelers, flying is often cheaper for distances over 300-400 miles. However, driving becomes more economical with multiple passengers since fuel costs are shared. Consider total costs including parking, tolls, and your time.
How can I save money on fuel costs?
Use gas price apps to find cheap stations, fill up early in the week, maintain steady speeds using cruise control, keep tires properly inflated, avoid excessive idling, and consider a fuel rewards credit card for cashback.