Tire Size Chart - Terrain Tailor

Welcome to Terrain Tailor’s tire cover fitment section. View the details below to find the right fit for your spare tire.

Terrain Tailor Tire Cover Sizing Chart

DIAMETER

INCH

68.6

71.1

73.6

76.2

81.3

86.3

TIRE WIDTH

INCH

30.5

35.5

38.1

48.2

To measure your tire for a proper tire cover fitting, follow these steps:

Gather Your Tools: You’ll need a measuring tape or ruler and a piece of paper and a pen to note down the measurements.
Locate the Spare Tire: Ensure your vehicle is on a level surface, and locate the tire for which you want to find the correct size.
Measure the Diameter: Measure the diameter of the tire from one side of the tread to the other, crossing through the center of the tire. Note this measurement in inches.
Measure the Depth: Measure the depth of the tire’s sidewall from the edge of the rim to the outermost part of the tire’s sidewall. Note this measurement as well.
Record the Size: Typically, tire sizes are represented in a series of numbers on the sidewall (e.g., P215/65R15). Write down this size as it might prove useful if you’re uncertain of your measurement.
Reference Charts: When choosing a tire cover, make sure to reference our fitting chart to the left or the common tire size chart found below to get an exact measurement.

Remember, tire covers should fit snugly but not be overly tight. If in doubt, it’s usually better to choose a slightly larger size to ensure a proper fit.

Tire Size Calculator

Inch Calculator

COMMON TIRE SIZE CHART

205/75R15 = 27.1×8.1
215/75R15 = 27.7×8.5
225/70R15 = 27.4×8.9
255/60R15 = 27×10
295/55R15 = 27.8X11.6
325/50R15 = 27.8×12.8
E78-15 = 27×6.5

155/90R16 = 27X6.1
195/75R16 = 27.5×7.7
205/70R16 = 27.3×8.1
215/65R16 = 27×8.5
215/70R16 = 27.9×8.5
225/65R16 = 27.5×8.9
235/60R16 = 27.1×9.3
295/50R16 = 27.6×11.6
355/40R16 = 27.2X14

145/90R17 = 27.3X5.7
165/80R17 = 27.4X6.5
215/60R17 = 27.2×8.5
225/60R17 = 27.6×8.9
235/55R17 = 27.2×9.3
245/55R17 = 27.6×9.6
255/50R17 = 27×10
275/50R17 = 27.8X10.8
305/45R17 = 27.8X12
345/40R17 = 27.9×13.6

145/80R18 = 27.1X5.7
145/85R18 = 27.7X5.7
215/55R18 = 27.3×8.5
225/55R18 = 27.7×8.9
235/50R18 = 27.3×9.3
245/50R18 = 27.6×9.6
255/45R18 = 27×10
265/45R18 = 27.4×10.4
275/45R18 = 27.7×10.8
285/40R18 = 27×11.2
295/40R18 = 27.3×11.6
305/40R18 = 27.6X12
315/40R18 = 27.9×12.4
325/35R18 = 27×12.8
345/35R18 = 27.5×13.6

155/70R19 = 27.5×6.1
175/60R19 = 27.3×6.9
225/45R19 = 27×8.9
235/45R19 = 27.3×9.3
245/45R19 = 27.7×9.6
255/40R19 = 27×10
265/40R19 = 27.3×10.4
275/40R19 = 27.7×10.8
295/35R19 = 27.1×11.6
305/35R19 = 27.4X12
315/35R19 = 27.7×12.4
345/30R19 = 27.1×13.6
355/30R19 = 27.4×14

155/60R20 = 27.3×6.1
155/65R20 = 27.9X6.1
165/60R20 = 27.8X6.5
175/55R20 = 27.6×6.9
195/50R20 = 27.7×7.7
215/45R20 = 27.6×8.5
225/40R20 = 27.1X8.9
235/40R20 = 27.4×9.3
245/40R20 = 27.7×9.6
255/35R20 = 27×10
265/35R20 = 27.3×10.4
275/35R20 = 27.6×10.8
285/35R20 = 27.9×11.2
295/30R20 = 27×11.6
305/30R20 = 27.2×12
315/30R20 = 27.4×12.4
325/30R20 = 27.7×12.8
335/30R20 = 27.9×13.2

225/75R15 = 28.3×8.9
235/70R15 = 28×9.3
235/75R15 = 28.9×9.3
245/70R15 = 28.5X9.6
255/65R15 = 28.1×10
275/60R15 = 28×10.8

195/80R16 = 28.3×7.7
205/75R16 = 28.1X8.1
205/80R16 = 28.9×8.1
215/75R16 = 28.7×8.5
225/70R16 = 28.4×8.9
235/65R16 = 28×9.3
255/60R16 = 28×10

155/90R17 = 28X6.1
165/90R17 = 28.7X6.5
215/65R17 = 28×8.5
215/70R17 = 28.9×8.5
225/65R17 = 28.5×8.9
235/60R17 = 28.1×9.3
245/60R17 = 28.6X9.6
255/55R17 = 28×10
275/55R17 = 28.9×10.8

155/85R18 = 28.4X6.1
225/60R18 = 28.6×8.9
235/55R18 = 28.2×9.3
245/55R18 = 28.6×9.6
255/50R18 = 28×10
265/50R18 = 28.4X10.4
285/45R18 = 28.1×11.2
295/45R18 = 28.5×11.6
305/45R18 = 28.8X12

145/80R19 = 28.1X5.7
155/80R19 = 28.8X6.1
225/55R19 = 28.7×8.9
235/50R19 = 28.3×9.3
245/50R19 = 28.6×9.6
255/45R19 = 28×10
265/45R19 = 28.4X10.4
275/45R19 = 28.7×10.8
285/40R19 = 28×11.2
295/40R19 = 28.3X11.6
315/40R19 = 28.9×12.4
345/35R19 = 28.5×13.6

225/45R20 = 28X8.9
235/45R20 = 28.3×9.3
245/45R20 = 28.7×9.6
255/40R20 = 28×10
265/40R20 = 28.3×10.4
275/40R20 = 28.7×10.8
295/35R20 = 28.1×11.6
305/35R20 = 28.4×12
315/35R20 = 28.7×12.4
345/30R20 = 28.1×13.6

245/40R21 = 28.7×9.6
255/35R21 = 28X10
265/35R21 = 28.3×10.4
275/35R21 = 28.6×10.8
285/35R21 = 28.9×11.2
295/30R21 = 28×11.6
305/30R21 = 28.2×12
315/30R21 = 28.4X12.4
325/30R21 = 28.7×12.8
355/25R21 = 28×14

255/30R22 = 28×10
265/30R22 = 28.3×10.4
275/30R22 = 28.5X10.8
285/30R22 = 28.7×11.2
305/25R22 = 28×12
315/25R22 = 28.2×12.4
335/25R22 = 28.6×13.2

215/85R15 = 29.4X8.5
255/70R15 = 29.1×10
265/70R15 = 29.6×10.4
315/60R15 = 29.9×12.4
7R15 = 29.5×7.7

225/75R16 = 29.3×8.9
235/70R16 = 29×9.3
235/75R16 = 29.9×9.3
245/70R16 = 29.5×9.6
255/65R16 = 29.1×10
275/60R16 = 29X10.8
285/60R16 = 29.5X11.2

175/90R17 = 29.4X6.9
225/70R17 = 29.4×8.9
235/65R17 = 29×9.3
245/65R17 = 29.5×9.6
255/60R17 = 29×10
265/60R17 = 29.5×10.4

155/90R18 = 29X6.1
165/90R18 = 29.7X6.5
225/65R18 = 29.5X8.9
235/60R18 = 29.1×9.3
245/60R18 = 29.6×9.6
255/55R18 = 29×10
265/55R18 = 29.5X10.4
275/55R18 = 29.9×10.8
285/50R18 = 29.2×11.2
325/45R18 = 29.5X12.8

235/55R19 = 29.2×9.3
245/55R19 = 29.6×9.6
255/50R19 = 29×10
265/50R19 = 29.4×10.4
275/50R19 = 29.8X10.8
285/45R19 = 29.1×11.2
295/45R19 = 29.5×11.6

235/50R20 = 29.3X9.3
245/50R20 = 29.6×9.6
255/45R20 = 29×10
265/45R20 = 29.4×10.4
275/45R20 = 29.7×10.8
285/40R20 = 29×11.2
295/40R20 = 29.3×11.6
305/40R20 = 29.6X12
325/35R20 = 29X12.8

245/45R21 = 29.7X9.6
255/40R21 = 29X10
265/40R21 = 29.3×10.4
275/40R21 = 29.7×10.8
295/35R21 = 29.1×11.6
305/35R21 = 29.4X12
315/35R21 = 29.7X12.4

255/35R22 = 29×10
265/35R22 = 29.3×10.4
275/35R22 = 29.6X10.8
285/35R22 = 29.9×11.2
295/30R22 = 29×11.6
305/30R22 = 29.2×12
315/30R22 = 29.4X12.4

255/75R15 = 30.1×10
265/75R15 = 30.6×10.4
295/65R15 = 30.1×11.6

215/85R16 = 30.4×8.5
235/80R16 = 30.8×9.3
245/75R16 = 30.5×9.6
255/70R16 = 30.1×10
265/70R16 = 30.6×10.4
285/65R16 = 30.6X11.2

225/75R17 = 30.3×8.9
235/70R17 = 30×9.3
235/75R17 = 30.9×9.3
245/70R17 = 30.5×9.6
255/65R17 = 30.1×10
265/65R17 = 30.6×10.4
275/60R17 = 30×10.8
285/60R17 = 30.5X11.2

175/90R18 = 30.4X6.9
235/65R18 = 30×9.3
245/65R18 = 30.5×9.6
255/60R18 = 30×10
265/60R18 = 30.5×10.4
285/55R18 = 30.3×11.2

165/90R19 = 30.7X6.5
175/80R19 = 30X6.9
255/55R19 = 30×10
265/55R19 = 30.5×10.4
275/55R19 = 30.9×10.8

235/55R20 = 30.2×9.3
255/50R20 = 30×10
265/50R20 = 30.4×10.4
275/50R20 = 30.8×10.8
285/45R20 = 30.1X11.2
295/45R20 = 30.5×11.6
305/45R20 = 30.8×12

265/45R21 = 30.4×10.4
275/45R21 = 30.7×10.8
285/40R21 = 30X11.2
295/40R21 = 30.3×11.6
315/40R21 = 30.9X12.4

255/40R22 = 30X10
265/40R22 = 30.3×10.4
275/40R22 = 30.7×10.8
295/35R22 = 30.1X11.6
305/35R22 = 30.4X12
315/35R22 = 30.7X12.4

1X10.5R15
31X11R15
31X11.5R15
31X12.5R15
31X13R15
31X13.5R15
31X14.5R15
31X16.5R15
31X18R15
31X18.5R15
31X9.5R15

225/85R16 = 31.1X8.9
235/85R16 = 31.7×9.3
265/75R16 = 31.6×10.4
275/70R16 = 31.2×10.8
285/70R16 = 31.7×11.2
31X10.5R16
31X11R16
31X11.5R16
31X12.5R16
7.5R16 = 31.8×8.7

235/80R17 = 31.8×9.3
245/75R17 = 31.5×9.6
255/70R17 = 31.1×10
265/70R17 = 31.6×10.4
275/65R17 = 31.1×10.8
285/65R17 = 31.6×11.2
31X10.5R17

235/70R18 = 31X9.3
255/65R18 = 31.1×10
265/65R18 = 31.6×10.4
275/60R18 = 31×10.8
285/60R18 = 31.5×11.2

235/65R19 = 31X9.3
255/60R19 = 31×10

245/60R20 = 31.6×9.6
255/55R20 = 31×10
275/55R20 = 31.9×10.8
285/50R20 = 31.2×11.2
295/50R20 = 31.6×11.6
31X18R20

255/50R21 = 31×10
275/50R21 = 31.8X10.8
285/45R21 = 31.1×11.2
325/40R21 = 31.2X12.8

255/45R22 = 31X10
265/45R22 = 31.4X10.4
275/45R22 = 31.7×10.8
285/40R22 = 31×11.2
295/40R22 = 31.3×11.6
305/40R22 = 31.6×12
325/35R22 = 31X12.8

32X10.5R15
32X11.5R15
32X14R15
32X16R15
32X17.5R15
32X18.5R15
32X9.5R15

265/80R16 = 32.7X10.4
285/75R16 = 32.8×11.2
305/70R16 = 32.8×12
32X10R16
32X11.5R16
32X9R16

235/85R17 = 32.7X9.3
255/75R17 = 32.1×10
275/70R17 = 32.2×10.8
285/70R17 = 32.7×11.2
305/65R17 = 32.6×12
32X10.5R17
32X11.5R17

255/70R18 = 32.1×10
265/70R18 = 32.6×10.4
275/65R18 = 32.1×10.8
285/65R18 = 32.6×11.2
305/60R18 = 32.4×12

265/60R20 = 32.5×10.4
285/55R20 = 32.3×11.2
295/55R20 = 32.8X11.6
305/50R20 = 32×12
315/50R20 = 32.4×12.4
325/50R20 = 32.8×12.8

275/50R22 = 32.8×10.8
285/45R22 = 32.1×11.2
305/45R22 = 32.8×12

285/40R23 = 32×11.2
305/40R23 = 32.6×12
325/35R23 = 32X12.8

295/35R24 = 32.1×11.6
305/35R24 = 32.4×12
315/35R24 = 32.7×12.4
405/25R24 = 32×15.9

33X10.5R15
33X11.5R15
33X12.5R15
33X13R15
33X13.5R15
33X14R15
33X14.5R15
33X15.5R15
33X16.5R15
33X19.5R15
33X21.5R15
33X9R15
33X9.5R15

255/85R16 = 33.1×10
295/75R16 = 33.4×11.6
33X10.5R16
33X11.5R16
33X12.5R16
33X13R16
33X13.5R16
33X14R16
33X14.5R16
33X9.5R16
33.5X16.5R16

255/80R17 = 33.1×10
285/75R17 = 33.8×11.2
295/70R17 = 33.3×11.6
305/70R17 = 33.8×12
33X10.5R17
33X12.5R17
33X13R17
33X13.5R17
33X9.5R17

275/70R18 = 33.2×10.8
285/70R18 = 33.7×11.2
295/65R18 = 33.1×11.6
305/65R18 = 33.6×12
325/60R18 = 33.4×12.8
33X10.5R18
33X11.5R18
33X12.5R18
33X13R18
33X13.5R18

275/60R20 = 33×10.8
285/60R20 = 33.5×11.2
295/60R20 = 33.9X11.6
305/55R20 = 33.2×12
33X11.5R20
33X12R20
33X12.5R20
33X13.5R20

285/50R22 = 33.2×11.2
33X12.5R22
33X14.5R22
355/40R22 = 33.2X14

285/40R24 = 33×11.2
295/40R24 = 33.3×11.6

295/30R26 = 33×11.6
305/30R26 = 33.2×12

295/25R28 = 33.8×11.6

34X10.5R15
34X12.5R15
34X9.5R15

315/75R16 = 34.6×12.4
34X10.5R16
34X12.5R16
34X13.5R16
34X9R16
34.5X17R16

275/80R17 = 34.3X10.8
315/70R17 = 34.4×12.4
325/70R17 = 34.9×12.8
34X10.5R17

285/75R18 = 34.8×11.2
295/70R18 = 34.3X11.6
305/70R18 = 34.8×12
325/65R18 = 34.6×12.8
34X12.5R18

275/65R20 = 34.1×10.8
285/65R20 = 34.6×11.2
305/60R20 = 34.4×12
315/60R20 = 34.9×12.4
355/50R20 = 34X14

285/55R22 = 34.3X11.2
295/55R22 = 34.8X11.6
305/50R22 = 34×12
325/50R22 = 34.8×12.8

385/35R24 = 34.6×15.2