275/40R18 Tire Pressure Chart

275/40R18 tire pressure chart with maximum tire load capacity at specified tire inflation levels for 275/40R18 tires. Apply the chart below to find corresponding tire inflation and load capacity levels to ensure proper application for your vehicle. Learn how to apply tire load inflation tables when replacing original equipment tires with optional or plus tire sizes.

Tire Size Load Index Load Range 26 psi 27 psi 28 psi 29 psi 30 psi 31 psi 32 psi 33 psi 34 psi 35 psi 36 psi 37 psi 38 psi 39 psi 40 psi 41 psi 42 psi
275/40R18
99 SL
99 SL 1312 lbs 1345 lbs 1367 lbs 1433 lbs 1488 lbs 1510 lbs 1543 lbs 1598 lbs 1620 lbs 1653 lbs 1709 lbs Show Specs

All Tire Sizes | Metric Tire Load Inflation Table

Tire pressure for similar tire sizes

Tire models with 275/40R18 tire size