Tire Pressure Calculator

Tire pressure affects safety, handling, fuel economy, and tire wear. This calculator determines optimal pressure based on manufacturer recommendations, adjusted for load conditions and temperature changes. Pressure is measured in PSI (pounds per square inch) or Bar.

1. 1

   Enter Vehicle Specs

   Input your vehicle type and recommended tire pressure

2. 2

   Add Load Information

   Indicate if carrying extra passengers or cargo

3. 3

   Account for Temperature

   Enter ambient temperature for pressure adjustment

4. 4

   View Recommendations

   See optimal pressure for front and rear tires

• 1

  Check tire pressure monthly and before long trips

• 2

  Measure pressure when tires are cold (driven less than a mile)

• 3

  Tire pressure drops about 1 PSI for every 10°F temperature drop

• 4

  The door jamb sticker shows correct pressure, not the tire sidewall

• 5

  Underinflation causes poor fuel economy and uneven tire wear

• Using the maximum pressure on the tire sidewall instead of recommended pressure

• Checking pressure after driving when tires are hot (reads high)

• Not adjusting for seasonal temperature changes

• Assuming front and rear pressures should always be the same