| Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
|---|---|---|---|---|---|---|
| 155/70-17 | 0.00 % | 50.00 | 1,000.00 | 25.54 | 4.27 | 108.50 |
| 145/75-17 | +0.08 % | 50.04 | 999.23 | 25.56 | 4.28 | 108.75 |
| 215/50-17 | -0.31 % | 49.85 | 1,003.08 | 25.46 | 4.23 | 107.50 |
| 195/55-17 | -0.39 % | 49.81 | 1,003.85 | 25.44 | 4.22 | 107.25 |
| 165/65-17 | -0.39 % | 49.81 | 1,003.85 | 25.44 | 4.22 | 107.25 |
| 275/40-17 | +0.46 % | 50.23 | 995.38 | 25.66 | 4.33 | 110.00 |
| 305/35-17 | -0.54 % | 49.73 | 1,005.39 | 25.41 | 4.20 | 106.75 |
| 315/35-17 | +0.54 % | 50.27 | 994.61 | 25.68 | 4.34 | 110.25 |
| 245/45-17 | +0.54 % | 50.27 | 994.61 | 25.68 | 4.34 | 110.25 |
| 185/60-17 | +0.77 % | 50.39 | 992.29 | 25.74 | 4.37 | 111.00 |
| 265/40-17 | -0.77 % | 49.61 | 1,007.71 | 25.35 | 4.17 | 106.00 |
| 235/45-17 | -0.85 % | 49.58 | 1,008.48 | 25.33 | 4.16 | 105.75 |
| 175/60-17 | -1.08 % | 49.46 | 1,010.79 | 25.27 | 4.13 | 105.00 |
| 225/50-17 | +1.23 % | 50.62 | 987.67 | 25.86 | 4.43 | 112.50 |
| 205/55-17 | +1.31 % | 50.66 | 986.90 | 25.88 | 4.44 | 112.75 |
| 295/35-17 | -1.62 % | 49.19 | 1,016.18 | 25.13 | 4.06 | 103.25 |
| 325/35-17 | +1.62 % | 50.81 | 983.82 | 25.96 | 4.48 | 113.75 |
| 175/65-17 | +1.62 % | 50.81 | 983.82 | 25.96 | 4.48 | 113.75 |
| 285/40-17 | +1.70 % | 50.85 | 983.05 | 25.98 | 4.49 | 114.00 |
| 205/50-17 | -1.85 % | 49.08 | 1,018.50 | 25.07 | 4.04 | 102.50 |
| 255/45-17 | +1.93 % | 50.96 | 980.73 | 26.04 | 4.52 | 114.75 |
| Ratio: | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Wheel Size 12
|
|||||||||||||
|
Wheel Size 13
|
|||||||||||||
|
Wheel Size 14
|
|||||||||||||
|
Wheel Size 15
|
|||||||||||||
|
Wheel Size 16
|
|||||||||||||
|
Wheel Size 16.5
|
|||||||||||||
|
Wheel Size 17
|
|||||||||||||
| 145 |
145/25-17
d=19.85
w=1.43
-22.27%
|
145/30-17
d=20.43
w=1.71
-20.04%
|
145/35-17
d=21.00
w=2.00
-17.80%
|
145/40-17
d=21.57
w=2.28
-15.57%
|
145/45-17
d=22.14
w=2.57
-13.33%
|
145/50-17
d=22.71
w=2.85
-11.10%
|
145/55-17
d=23.28
w=3.14
-8.86%
|
145/60-17
d=23.85
w=3.43
-6.63%
|
145/65-17
d=24.42
w=3.71
-4.39%
|
145/70-17
d=24.99
w=4.00
-2.16%
|
145/75-17
d=25.56
w=4.28
+0.08%
|
145/80-17
d=26.13
w=4.57
+2.31%
|
145/85-17
d=26.70
w=4.85
+4.55%
|
| 155 |
155/25-17
d=20.05
w=1.53
-21.50%
|
155/30-17
d=20.66
w=1.83
-19.11%
|
155/35-17
d=21.27
w=2.14
-16.72%
|
155/40-17
d=21.88
w=2.44
-14.33%
|
155/45-17
d=22.49
w=2.75
-11.95%
|
155/50-17
d=23.10
w=3.05
-9.56%
|
155/55-17
d=23.71
w=3.36
-7.17%
|
155/60-17
d=24.32
w=3.66
-4.78%
|
155/65-17
d=24.93
w=3.97
-2.39%
|
155/70-17
d=25.54
w=4.27
0.00%
|
155/75-17
d=26.15
w=4.58
+2.39%
|
155/80-17
d=26.76
w=4.88
+4.78%
|
155/85-17
d=27.37
w=5.19
+7.17%
|
| 165 |
165/25-17
d=20.25
w=1.62
-20.73%
|
165/30-17
d=20.90
w=1.95
-18.19%
|
165/35-17
d=21.55
w=2.27
-15.64%
|
165/40-17
d=22.20
w=2.60
-13.10%
|
165/45-17
d=22.85
w=2.92
-10.56%
|
165/50-17
d=23.50
w=3.25
-8.01%
|
165/55-17
d=24.15
w=3.57
-5.47%
|
165/60-17
d=24.80
w=3.90
-2.93%
|
165/65-17
d=25.44
w=4.22
-0.39%
|
165/70-17
d=26.09
w=4.55
+2.16%
|
165/75-17
d=26.74
w=4.87
+4.70%
|
165/80-17
d=27.39
w=5.20
+7.24%
|
165/85-17
d=28.04
w=5.52
+9.79%
|
| 175 |
175/25-17
d=20.44
w=1.72
-19.96%
|
175/30-17
d=21.13
w=2.07
-17.26%
|
175/35-17
d=21.82
w=2.41
-14.57%
|
175/40-17
d=22.51
w=2.76
-11.87%
|
175/45-17
d=23.20
w=3.10
-9.17%
|
175/50-17
d=23.89
w=3.44
-6.47%
|
175/55-17
d=24.58
w=3.79
-3.78%
|
175/60-17
d=25.27
w=4.13
-1.08%
|
175/65-17
d=25.96
w=4.48
+1.62%
|
175/70-17
d=26.65
w=4.82
+4.32%
|
175/75-17
d=27.33
w=5.17
+7.01%
|
175/80-17
d=28.02
w=5.51
+9.71%
|
175/85-17
d=28.71
w=5.86
+12.41%
|
| 185 |
185/25-17
d=20.64
w=1.82
-19.19%
|
185/30-17
d=21.37
w=2.19
-16.34%
|
185/35-17
d=22.10
w=2.55
-13.49%
|
185/40-17
d=22.83
w=2.91
-10.64%
|
185/45-17
d=23.56
w=3.28
-7.78%
|
185/50-17
d=24.28
w=3.64
-4.93%
|
185/55-17
d=25.01
w=4.01
-2.08%
|
185/60-17
d=25.74
w=4.37
+0.77%
|
185/65-17
d=26.47
w=4.73
+3.62%
|
185/70-17
d=27.20
w=5.10
+6.47%
|
185/75-17
d=27.93
w=5.46
+9.32%
|
185/80-17
d=28.65
w=5.83
+12.18%
|
185/85-17
d=29.38
w=6.19
+15.03%
|
| 195 |
195/25-17
d=20.84
w=1.92
-18.42%
|
195/30-17
d=21.61
w=2.30
-15.41%
|
195/35-17
d=22.37
w=2.69
-12.41%
|
195/40-17
d=23.14
w=3.07
-9.40%
|
195/45-17
d=23.91
w=3.45
-6.40%
|
195/50-17
d=24.68
w=3.84
-3.39%
|
195/55-17
d=25.44
w=4.22
-0.39%
|
195/60-17
d=26.21
w=4.61
+2.62%
|
195/65-17
d=26.98
w=4.99
+5.63%
|
195/70-17
d=27.75
w=5.37
+8.63%
|
195/75-17
d=28.52
w=5.76
+11.64%
|
195/80-17
d=29.28
w=6.14
+14.64%
|
195/85-17
d=30.05
w=6.53
+17.65%
|
| 205 |
205/25-17
d=21.04
w=2.02
-17.65%
|
205/30-17
d=21.84
w=2.42
-14.49%
|
205/35-17
d=22.65
w=2.82
-11.33%
|
205/40-17
d=23.46
w=3.23
-8.17%
|
205/45-17
d=24.26
w=3.63
-5.01%
|
205/50-17
d=25.07
w=4.04
-1.85%
|
205/55-17
d=25.88
w=4.44
+1.31%
|
205/60-17
d=26.69
w=4.84
+4.47%
|
205/65-17
d=27.49
w=5.25
+7.63%
|
205/70-17
d=28.30
w=5.65
+10.79%
|
205/75-17
d=29.11
w=6.05
+13.95%
|
205/80-17
d=29.91
w=6.46
+17.11%
|
205/85-17
d=30.72
w=6.86
+20.27%
|
| 215 |
215/25-17
d=21.23
w=2.12
-16.88%
|
215/30-17
d=22.08
w=2.54
-13.56%
|
215/35-17
d=22.93
w=2.96
-10.25%
|
215/40-17
d=23.77
w=3.39
-6.94%
|
215/45-17
d=24.62
w=3.81
-3.62%
|
215/50-17
d=25.46
w=4.23
-0.31%
|
215/55-17
d=26.31
w=4.66
+3.01%
|
215/60-17
d=27.16
w=5.08
+6.32%
|
215/65-17
d=28.00
w=5.50
+9.63%
|
215/70-17
d=28.85
w=5.93
+12.95%
|
215/75-17
d=29.70
w=6.35
+16.26%
|
215/80-17
d=30.54
w=6.77
+19.57%
|
215/85-17
d=31.39
w=7.19
+22.89%
|
| 225 |
225/25-17
d=21.43
w=2.21
-16.11%
|
225/30-17
d=22.31
w=2.66
-12.64%
|
225/35-17
d=23.20
w=3.10
-9.17%
|
225/40-17
d=24.09
w=3.54
-5.70%
|
225/45-17
d=24.97
w=3.99
-2.23%
|
225/50-17
d=25.86
w=4.43
+1.23%
|
225/55-17
d=26.74
w=4.87
+4.70%
|
225/60-17
d=27.63
w=5.31
+8.17%
|
225/65-17
d=28.52
w=5.76
+11.64%
|
225/70-17
d=29.40
w=6.20
+15.10%
|
225/75-17
d=30.29
w=6.64
+18.57%
|
225/80-17
d=31.17
w=7.09
+22.04%
|
225/85-17
d=32.06
w=7.53
+25.51%
|
| 235 |
235/25-17
d=21.63
w=2.31
-15.34%
|
235/30-17
d=22.55
w=2.78
-11.71%
|
235/35-17
d=23.48
w=3.24
-8.09%
|
235/40-17
d=24.40
w=3.70
-4.47%
|
235/45-17
d=25.33
w=4.16
-0.85%
|
235/50-17
d=26.25
w=4.63
+2.77%
|
235/55-17
d=27.18
w=5.09
+6.40%
|
235/60-17
d=28.10
w=5.55
+10.02%
|
235/65-17
d=29.03
w=6.01
+13.64%
|
235/70-17
d=29.95
w=6.48
+17.26%
|
235/75-17
d=30.88
w=6.94
+20.88%
|
235/80-17
d=31.80
w=7.40
+24.51%
|
235/85-17
d=32.73
w=7.86
+28.13%
|
| 245 |
245/25-17
d=21.82
w=2.41
-14.57%
|
245/30-17
d=22.79
w=2.89
-10.79%
|
245/35-17
d=23.75
w=3.38
-7.01%
|
245/40-17
d=24.72
w=3.86
-3.24%
|
245/45-17
d=25.68
w=4.34
+0.54%
|
245/50-17
d=26.65
w=4.82
+4.32%
|
245/55-17
d=27.61
w=5.31
+8.09%
|
245/60-17
d=28.57
w=5.79
+11.87%
|
245/65-17
d=29.54
w=6.27
+15.64%
|
245/70-17
d=30.50
w=6.75
+19.42%
|
245/75-17
d=31.47
w=7.23
+23.20%
|
245/80-17
d=32.43
w=7.72
+26.97%
|
245/85-17
d=33.40
w=8.20
+30.75%
|
| 255 |
255/25-17
d=22.02
w=2.51
-13.79%
|
255/30-17
d=23.02
w=3.01
-9.86%
|
255/35-17
d=24.03
w=3.51
-5.93%
|
255/40-17
d=25.03
w=4.02
-2.00%
|
255/45-17
d=26.04
w=4.52
+1.93%
|
255/50-17
d=27.04
w=5.02
+5.86%
|
255/55-17
d=28.04
w=5.52
+9.79%
|
255/60-17
d=29.05
w=6.02
+13.72%
|
255/65-17
d=30.05
w=6.53
+17.65%
|
255/70-17
d=31.06
w=7.03
+21.58%
|
255/75-17
d=32.06
w=7.53
+25.51%
|
255/80-17
d=33.06
w=8.03
+29.44%
|
255/85-17
d=34.07
w=8.53
+33.37%
|
| 265 |
265/25-17
d=22.22
w=2.61
-13.02%
|
265/30-17
d=23.26
w=3.13
-8.94%
|
265/35-17
d=24.30
w=3.65
-4.86%
|
265/40-17
d=25.35
w=4.17
-0.77%
|
265/45-17
d=26.39
w=4.69
+3.31%
|
265/50-17
d=27.43
w=5.22
+7.40%
|
265/55-17
d=28.48
w=5.74
+11.48%
|
265/60-17
d=29.52
w=6.26
+15.57%
|
265/65-17
d=30.56
w=6.78
+19.65%
|
265/70-17
d=31.61
w=7.30
+23.74%
|
265/75-17
d=32.65
w=7.82
+27.82%
|
265/80-17
d=33.69
w=8.35
+31.91%
|
265/85-17
d=34.74
w=8.87
+35.99%
|
| 275 |
275/25-17
d=22.41
w=2.71
-12.25%
|
275/30-17
d=23.50
w=3.25
-8.01%
|
275/35-17
d=24.58
w=3.79
-3.78%
|
275/40-17
d=25.66
w=4.33
+0.46%
|
275/45-17
d=26.74
w=4.87
+4.70%
|
275/50-17
d=27.83
w=5.41
+8.94%
|
275/55-17
d=28.91
w=5.95
+13.18%
|
275/60-17
d=29.99
w=6.50
+17.42%
|
275/65-17
d=31.07
w=7.04
+21.66%
|
275/70-17
d=32.16
w=7.58
+25.89%
|
275/75-17
d=33.24
w=8.12
+30.13%
|
275/80-17
d=34.32
w=8.66
+34.37%
|
275/85-17
d=35.41
w=9.20
+38.61%
|
| 285 |
285/25-17
d=22.61
w=2.81
-11.48%
|
285/30-17
d=23.73
w=3.37
-7.09%
|
285/35-17
d=24.85
w=3.93
-2.70%
|
285/40-17
d=25.98
w=4.49
+1.70%
|
285/45-17
d=27.10
w=5.05
+6.09%
|
285/50-17
d=28.22
w=5.61
+10.48%
|
285/55-17
d=29.34
w=6.17
+14.87%
|
285/60-17
d=30.46
w=6.73
+19.27%
|
285/65-17
d=31.59
w=7.29
+23.66%
|
285/70-17
d=32.71
w=7.85
+28.05%
|
285/75-17
d=33.83
w=8.42
+32.44%
|
285/80-17
d=34.95
w=8.98
+36.84%
|
285/85-17
d=36.07
w=9.54
+41.23%
|
| 295 |
295/25-17
d=22.81
w=2.90
-10.71%
|
295/30-17
d=23.97
w=3.48
-6.17%
|
295/35-17
d=25.13
w=4.06
-1.62%
|
295/40-17
d=26.29
w=4.65
+2.93%
|
295/45-17
d=27.45
w=5.23
+7.48%
|
295/50-17
d=28.61
w=5.81
+12.02%
|
295/55-17
d=29.78
w=6.39
+16.57%
|
295/60-17
d=30.94
w=6.97
+21.12%
|
295/65-17
d=32.10
w=7.55
+25.66%
|
295/70-17
d=33.26
w=8.13
+30.21%
|
295/75-17
d=34.42
w=8.71
+34.76%
|
295/80-17
d=35.58
w=9.29
+39.30%
|
295/85-17
d=36.74
w=9.87
+43.85%
|
| 305 |
305/25-17
d=23.00
w=3.00
-9.94%
|
305/30-17
d=24.20
w=3.60
-5.24%
|
305/35-17
d=25.41
w=4.20
-0.54%
|
305/40-17
d=26.61
w=4.80
+4.16%
|
305/45-17
d=27.81
w=5.40
+8.86%
|
305/50-17
d=29.01
w=6.00
+13.56%
|
305/55-17
d=30.21
w=6.60
+18.26%
|
305/60-17
d=31.41
w=7.20
+22.97%
|
305/65-17
d=32.61
w=7.81
+27.67%
|
305/70-17
d=33.81
w=8.41
+32.37%
|
305/75-17
d=35.01
w=9.01
+37.07%
|
305/80-17
d=36.21
w=9.61
+41.77%
|
305/85-17
d=37.41
w=10.21
+46.47%
|
| 315 |
315/25-17
d=23.20
w=3.10
-9.17%
|
315/30-17
d=24.44
w=3.72
-4.32%
|
315/35-17
d=25.68
w=4.34
+0.54%
|
315/40-17
d=26.92
w=4.96
+5.39%
|
315/45-17
d=28.16
w=5.58
+10.25%
|
315/50-17
d=29.40
w=6.20
+15.10%
|
315/55-17
d=30.64
w=6.82
+19.96%
|
315/60-17
d=31.88
w=7.44
+24.82%
|
315/65-17
d=33.12
w=8.06
+29.67%
|
315/70-17
d=34.36
w=8.68
+34.53%
|
315/75-17
d=35.60
w=9.30
+39.38%
|
315/80-17
d=36.84
w=9.92
+44.24%
|
315/85-17
d=38.08
w=10.54
+49.09%
|
| 325 |
325/25-17
d=23.40
w=3.20
-8.40%
|
325/30-17
d=24.68
w=3.84
-3.39%
|
325/35-17
d=25.96
w=4.48
+1.62%
|
325/40-17
d=27.24
w=5.12
+6.63%
|
325/45-17
d=28.52
w=5.76
+11.64%
|
325/50-17
d=29.80
w=6.40
+16.65%
|
325/55-17
d=31.07
w=7.04
+21.66%
|
325/60-17
d=32.35
w=7.68
+26.66%
|
325/65-17
d=33.63
w=8.32
+31.67%
|
325/70-17
d=34.91
w=8.96
+36.68%
|
325/75-17
d=36.19
w=9.60
+41.69%
|
325/80-17
d=37.47
w=10.24
+46.70%
|
325/85-17
d=38.75
w=10.88
+51.71%
|
| 335 |
335/25-17
d=23.59
w=3.30
-7.63%
|
335/30-17
d=24.91
w=3.96
-2.47%
|
335/35-17
d=26.23
w=4.62
+2.70%
|
335/40-17
d=27.55
w=5.28
+7.86%
|
335/45-17
d=28.87
w=5.94
+13.02%
|
335/50-17
d=30.19
w=6.59
+18.19%
|
335/55-17
d=31.51
w=7.25
+23.35%
|
335/60-17
d=32.83
w=7.91
+28.51%
|
335/65-17
d=34.15
w=8.57
+33.68%
|
335/70-17
d=35.46
w=9.23
+38.84%
|
335/75-17
d=36.78
w=9.89
+44.00%
|
335/80-17
d=38.10
w=10.55
+49.17%
|
335/85-17
d=39.42
w=11.21
+54.33%
|
|
Wheel Size 18
|
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Wheel Size 19
|
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|
Wheel Size 20
|
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|
Wheel Size 21
|
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The information on this page is intended to be helpful, but there is absolutely no guarantee of its accuracy, safety, or applicability for any particular use. The data is calculated mathematically, not taken from any official or recommended guide.
Please excercise a common sense, follow manufacturer and dealer recommendations, and check with other sources.
Tires are a safety equipment, don't take their selection lightly!