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Diameter Comparison of Light Truck Tire Sizes


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Tire diameters provided are typical for the tire size. However, different tread designs and molded tread depths can result in slightly different overall tire diameters.

Approx. Tire Diameter
(in Inches)
P-Metric and European Metric LT-Metric Light Truck
82-series and 80-series 75-series and 70-series 65-series and 60-series 55-series and lower
85-series and 80-series 75-series and 70-series 65-series and 60-series 55-series and lower
Flotation Numeric
42







42x14.50R17LT
40







40x13.50R20LT








40x13.50R18LT








40x13.50R17LT
38-1/2







38.5x14.50R20LT
38




LT395/70R16 LT395/65R18
38x14.00R24LT








38x15.50R20LT








38x15.50R18LT








38x15.50R15LT
37



LT325/80R16


37x14.00R24LT








37x13.50R22LT








37x13.50R20LT








37x13.50R18LT








37x13.50R17LT








37x12.50R17LT
36





LT375/60R18
36x15.50R20LT








36x15.50R15LT
35




LT305/70R18 LT285/65R20
35x13.50R20LT





LT285/75R18 LT325/65R18


34-1/2




LT315/70R17 LT275/65R20
35X12.50R20LT





LT315/75R16

35x12.50R18LT








35x12.50R17LT








35X12.50R15LT
34




LT305/70R17



33-1/2



LT255/85R16 LT275/70R18 LT285/60R20 LT305/55R20

33




LT285/70R17 LT325/60R18 LT325/50R20 33x12.50R20LT





LT305/70R16 LT305/65R17 LT375/50R18 33x12.50R18LT





LT285/75R16 LT295/65R18 LT375/55R16 33x12.50R17LT








33x15.50R15LT
32-1/2




LT275/70R17 LT305/60R18 LT375/55R16 33X12.50R16.5LT





LT255/75R17 LT275/65R18







LT315/70R15

33X12.50R15LT
32




LT265/70R17
LT345/55R17






LT245/75R17








LT265/75R16



31-1/2
265/70R17 285/60R18
LT235/85R16 LT265/75R16

32X11.50R15LT 7.50R16LT

265/75R16







31
275/70R16
285/55R18 LT215/85R16 LT245/70R17
LT345/55R16






LT245/75R16



30-1/2
265/70R16 285/60R17

LT285/70R15 LT325/60R15
31X10.50R16.5LT 9.50R16.5LT

265/75R15 265/65R17




31X11.50R15LT








31X10.50R15LT
30
255/70R16 275/60R17








255/65R17






29-1/2
245/70R16 265/60R17

LT225/75R16 LT285/60R16 LT315/55R16 30X9.50R15LT 8.75R16.5LT

265/70R15 245/65R17





7.00R15LT
29 205R16 235/70R16 255/60R17 255/55R18
LT235/75R15



205/80R16 255/70R15 255/65R16







235/75R15







28-1/2
225/70R16


LT225/75R15

29X9.50R15LT 8.00R16.5LT

245/70R15








225/75R15







28
215/70R16 275/60R15 255/55R17

LT245/65R15


27-1/2
225/70R15


LT215/75R15




215/75R15







27
205/75R15 255/60R15 255/50R17
LT205/75R15





225/60R16 305/50R15







215/65R16






26-1/2
225/70R14 245/60R15 295/50R15
LT195/75R15

27X8.50R14LT

195/75R15







26 185R14 195/70R15 235/60R15







215/70R14 215/65R15







205/75R14







25-1/2
205/70R14 225/60R15







195/75R14








Verify tire specifications and dimensions of tires by viewing the SPECS page of tires you are interested in. While this chart can't guarantee a specific tire will fit your vehicle, it can give you an idea of the available tire sizes with the same approximate overall diameter. Make sure to see Light Truck Fitment Formula for more info on important things to consider when selecting truck tire sizes. Always verify that the load capacity of the new tire is sufficient for your vehicle.

The approximate width of metric sized tires can be converted into inches by dividing the branded Section Width in millimeters by 25.4; for example LT285/60R16 285 ÷ 25.4 = 11.2"

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