Fuel Calculator: The Cost of Low Air Pressure

Underinflated tires reduce fuel efficiency, causing you to spend more time and money at the gas pump.

Fill in the fields below to calculate the cost of low tire pressure, and figure out just how much you can save.


The US Department of Energy estimates that gas mileage can be lowered by 0.4% for every one pound per square inch (psi) drop in the pressure of all four tires. This may not seem significant, but think about the rapid rate at which the associated fuel cost increases as you rack up mileage.

It doesn’t take a long time to check the air pressure in your tires. Adding this task to your routine once a month or every other time you get gas can help save you money, and not only on fuel. Keeping your tires properly inflated will help to ensure you get the longest possible life from their tread, reducing how often you’ll need to replace them.

*Calculations based on US Department of Energy gas consumption estimates and assumption that underinflation value persists unchanged throughout the year.

Visit your local store for a free air pressure check! Our expert staff can help you maintain proper tire pressure, allowing you to save gas, money, and unnecessary wear on your tires.

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