315/30R21 Tire Pressure Chart

Corresponding tire load capacity at specified tire inflation pressures for 315/30R21 tires.

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Tire Size 26 psi 29 psi 32 psi 35 psi 36 psi 38 psi 41 psi 42 psi
315/30R21 (102 SL) 1435 lbs 1567 lbs 1695 lbs 1821 lbs 1874 lbs (102 SL)
315/30R21 (105 XL) 1387 lbs 1515 lbs 1638 lbs 1759 lbs 1801 lbs 1881 lbs 1997 lbs 2039 lbs (105 XL)
Tire Size 26 psi 29 psi 32 psi 35 psi 36 psi 38 psi 41 psi 42 psi
315/30R21 102 SL 1435 lbs 1567 lbs 1695 lbs 1821 lbs 1874 lbs (102 SL)
315/30R21 105 XL 1387 lbs 1515 lbs 1638 lbs 1759 lbs 1801 lbs 1881 lbs 1997 lbs 2039 lbs (105 XL)

315/30R21 is an 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.

315/30R21 102 SL is a Standard Load tire with a load index of 102 and a maximum tire load capacity of 1874 lbs @ 36 psi, capable of supporting up to 1874 pounds or 850 kilograms when inflated to its maximum air pressure of 36 pounds per square inch (psi) or 248 kilopascals (kPa).

315/30R21 105 XL is an Extra Load tire with a load index of 105 and a maximum tire load capacity of 2039 lbs @ 42 psi, capable of supporting up to 2039 pounds or 925 kilograms when inflated to its maximum air pressure of 42 pounds per square inch (psi) or 290 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 315/30R21 tire size

8 tire models are available in 315/30R21 tire size. Click on tire model to check its inflation and load capacity values.

Vehicles with 315/30R21 tire size

315/30R21 tire size is used for original equipment tires on 6 vehicles. Click on vehicle model to find its recommended tire pressure for 315/30R21 tires.

Replacement tire sizes compatible with 315/30R21 tire

315/30R21 tire can be replaced with 27 compatible tire sizes. Click on tire size to see its load and inflation table.