Calculate the fuel cost for any trip based on distance, fuel efficiency, and current gas prices.
| Trip Distance | 500 miles |
| Vehicle Fuel Efficiency | 25 MPG |
| Gas Price per Gallon | $4 |
| Gallons Needed | 20.00 gal |
| Total Fuel Cost | $70 |
| Cost per Mile | $0 |
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Gallons Needed = Distance ÷ MPG
Total Fuel Cost = Gallons × Price per Gallon
Cost per Mile = Total Cost ÷ Distance
Gas cost = (Distance ÷ MPG) × Gas Price per Gallon. For example: 500 miles ÷ 25 MPG = 20 gallons × $3.50/gallon = $70 total fuel cost.
Average MPG varies by vehicle: compact cars 30-40 MPG, sedans 25-35 MPG, SUVs 18-28 MPG, trucks 15-25 MPG. Check your vehicle's EPA rating or use 25 MPG as a reasonable average.
Yes. Fuel efficiency typically decreases at speeds above 50 MPH. Highway driving at 70 MPH uses ~15% more fuel than 55 MPH. City driving with stop-and-go traffic reduces MPG by 10-20% compared to highway.
Keep tires properly inflated (+3% MPG), avoid excess idling, drive steadily at moderate speeds, remove excess weight, maintain your engine, and avoid aggressive acceleration. These changes can improve MPG by 10-25%.
Gas prices fluctuate daily based on crude oil prices, refining costs, distribution, and taxes. Prices vary by location and can differ by $0.50/gallon between states. Use current local prices for accurate estimates.
Average daily commute: 30 miles ÷ 25 MPG = 1.2 gallons × $3.50 = $4.20/day. Weekly: $29.40. Monthly: ~$126. Annual: ~$1,533. Compare this to public transportation or remote work options.
Calculations are for educational purposes only. Consult a qualified financial advisor for personalized advice.