P235/55R18 Tire Pressure
Discover the load limits at various inflation pressures for P235/55R18 tires to ensure your vehicle's tires are properly inflated for a safe and comfortable drive.
P235/55R18 is a P-Metric tire that comes in a Standard Load (SL) range and an Extra Load (XL) range.
Standard load (SL) size has a load index of 99 with a maximum load capacity of 1709 lbs at 36 psi, capable of supporting up to 1709 pounds when inflated to its maximum air pressure of 36 pounds per square inch.
Extra load (XL) size has a load index of 102 with a maximum load capacity of 1874 lbs at 42 psi, capable of supporting up to 1874 pounds when inflated to its maximum air pressure of 42 pounds per square inch.
P235/55R18 Tire Pressure Chart
| Tire Size | Load Index | Load Range | 26 psi | 29 psi | 32 psi | 35 psi | 36 psi | 38 psi | 41 psi | 42 psi |
|---|---|---|---|---|---|---|---|---|---|---|
| P235/55R18 | 99 | SL | 1499 lbs | 1576 lbs | 1653 lbs | 1709 lbs | 1738 lbs (99 SL) | |||
| P235/55R18 | 102 | XL | 1499 lbs | 1576 lbs | 1653 lbs | 1709 lbs | 1738 lbs | 1797 lbs | 1874 lbs | 1874 lbs (102 XL) |
Use the tire pressure calculator to determine proper inflation for new tire size when replacing P235/55R18 tires.
All listed guides, data and/or calculations are for informational purposes only. TirePressure.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information.