P275/40R18 Tire Pressure Chart

Corresponding tire load capacity at specified tire inflation pressures for P275/40R18 tires.

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Tire Size 26 psi 29 psi 32 psi 35 psi 36 psi 38 psi 41 psi 42 psi
P275/40R18 (94 LL) 1290 lbs 1356 lbs 1422 lbs 1477 lbs (94 LL)
P275/40R18 (99 SL) 1312 lbs 1433 lbs 1543 lbs 1653 lbs 1709 lbs (99 SL)
Tire Size 26 psi 29 psi 32 psi 35 psi 36 psi 38 psi 41 psi 42 psi
P275/40R18 (94 LL) 1290 lbs 1356 lbs 1422 lbs 1477 lbs (94 LL)
P275/40R18 (99 SL) 1312 lbs 1433 lbs 1543 lbs 1653 lbs 1709 lbs (99 SL)

P275/40R18 is an P-Metric tire.

Use our tire pressure calculator to calculate proper tire inflation for replacement tires to match the original equipment tire load capacity on your vehicle.

P275/40R18 94 LL is a Light Load tire with a load index of 94 and a maximum tire load capacity of 1477 lbs @ 35 psi, capable of supporting up to 1477 pounds or 670 kilograms when inflated to its maximum air pressure of 35 pounds per square inch (psi) or 241 kilopascals (kPa).

P275/40R18 99 SL is a Standard Load tire with a load index of 99 and a maximum tire load capacity of 1709 lbs @ 36 psi, capable of supporting up to 1709 pounds or 775 kilograms when inflated to its maximum air pressure of 36 pounds per square inch (psi) or 248 kilopascals (kPa).

All listed 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. Always refer to vehicle owner's manual for recommended tire pressure settings. Never overinflate or overload a tire beyond its maximum capabilities listed on sidewall.

Tires with P275/40R18 tire size

2 tire models are available in P275/40R18 tire size. Click on tire model to check its inflation and load capacity values.

Replacement tire sizes compatible with P275/40R18 tire

P275/40R18 tire can be replaced with 101 compatible tire sizes. Click on tire size to see its load and inflation table.