Fuel Cost Calculator
How much will that road trip cost in gas? Enter your distance, fuel efficiency, and gas price — get an instant fuel cost estimate.
⛽ Total Fuel Cost
$—
— of fuel · — per person
Fuel Used
—
gallons
Cost per Mile
—
per mile
Efficiency
—
MPG
💡 What this means
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🚗 Want to save on gas?
🔧 See top-rated fuel-saving gadgets on Amazon →📌 5 Tips to Cut Your Fuel Costs
- ✓ Check tire pressure monthly. Under-inflated tires lower fuel efficiency by ~0.2% per 1 PSI drop. Proper pressure can improve MPG by up to 3% — that's $50-100/year for most drivers.
- ✓ Drive smoothly. Aggressive acceleration and hard braking waste fuel. Smooth driving saves up to 30% on highway and 40% in stop-and-go traffic. Use cruise control on long highway stretches.
- ✓ Remove excess weight. Every 100 lbs of extra weight reduces MPG by ~1%. Clear out the trunk, remove roof racks when not in use — a roof box can cut fuel economy by 10-25% at highway speeds.
- ✓ Combine trips. A warm engine runs more efficiently than a cold one. Combining errands into one trip instead of three separate ones saves fuel, time, and wear on your engine.
- ✓ Compare vehicles before buying. Upgrading from 20 MPG to 30 MPG saves ~$875/year at 15,000 miles and $3.50/gal. Use the calculator to compare two vehicles side-by-side before your next purchase.
Disclaimer: This calculator provides fuel cost estimates for planning purposes only. Actual fuel consumption varies with driving conditions, terrain, weather, load, and vehicle condition. Always carry extra fuel budget for long trips. Prices shown are based on your input — verify current local fuel prices for the most accurate estimate.
Related Tools
Fuel is just one piece of the car-ownership puzzle. These calculators cover the rest — from the full cost of owning a car to depreciation, loan payments, and whether to lease or buy.
- Car Ownership Cost Calculator — fuel is only part of it; see insurance, maintenance, depreciation, and financing too.
- Car Depreciation Calculator — the biggest hidden cost of car ownership. See how much your vehicle loses per year.
- Auto Car Payment Calculator — your monthly car loan payment, including interest and total cost of financing.
- Road Trip Cost Calculator — the full picture: fuel, food, lodging, tolls, and entertainment for your entire trip.
- Should I Buy or Lease? — factor fuel economy into the buy-vs-lease decision and see the 5-year total cost.