Automotive CalculatorsPrivate by design
Octane Rating Cost Difference Calculator
Enter your annual mileage, MPG, and gas prices to calculate the extra annual cost of using premium instead of regular gas.
How to use this tool
- 1Enter your annual miles driven.
- 2Enter your vehicle's MPG.
- 3Enter the premium and regular gas prices.
- 4See the extra annual cost.
Frequently asked questions
Does premium gas improve performance in any car?+
Only in engines specifically designed to require or recommend it (check your owner's manual) — in a car designed for regular gas, premium typically provides no measurable benefit.
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