MPG & Fuel Cost Calculator
Two calculators in one: compute real-world MPG from miles and gallons, then project your annual fuel cost.
Frequently Asked Questions
Why is my real MPG lower than the window sticker?+
EPA estimates assume ideal conditions. Real-world MPG is usually 5–15% lower due to stop-and-go, weather, AC, and driving style.
How do I calculate MPG?+
MPG = miles driven ÷ gallons used. Reset your trip odometer at a fill-up, drive normally, then divide total miles by gallons at your next fill-up.
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