| Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
|---|---|---|---|---|---|---|
| 235/60-17 | 0.00 % | 50.00 | 1,000.00 | 28.10 | 5.55 | 141.00 |
| 255/55-17 | -0.21 % | 49.89 | 1,002.10 | 28.04 | 5.52 | 140.25 |
| 165/85-17 | -0.21 % | 49.89 | 1,002.10 | 28.04 | 5.52 | 140.25 |
| 315/45-17 | +0.21 % | 50.11 | 997.90 | 28.16 | 5.58 | 141.75 |
| 175/80-17 | -0.28 % | 49.86 | 1,002.80 | 28.02 | 5.51 | 140.00 |
| 215/65-17 | -0.35 % | 49.82 | 1,003.50 | 28.00 | 5.50 | 139.75 |
| 285/50-17 | +0.42 % | 50.21 | 995.80 | 28.22 | 5.61 | 142.50 |
| 185/75-17 | -0.63 % | 49.68 | 1,006.30 | 27.93 | 5.46 | 138.75 |
| 205/70-17 | +0.70 % | 50.35 | 993.00 | 28.30 | 5.65 | 143.50 |
| 275/50-17 | -0.98 % | 49.51 | 1,009.81 | 27.83 | 5.41 | 137.50 |
| 305/45-17 | -1.05 % | 49.47 | 1,010.51 | 27.81 | 5.40 | 137.25 |
| 195/70-17 | -1.26 % | 49.37 | 1,012.61 | 27.75 | 5.37 | 136.50 |
| 265/55-17 | +1.33 % | 50.67 | 986.69 | 28.48 | 5.74 | 145.75 |
| 325/45-17 | +1.47 % | 50.74 | 985.29 | 28.52 | 5.76 | 146.25 |
| 225/65-17 | +1.47 % | 50.74 | 985.29 | 28.52 | 5.76 | 146.25 |
| 195/75-17 | +1.47 % | 50.74 | 985.29 | 28.52 | 5.76 | 146.25 |
| 225/60-17 | -1.68 % | 49.16 | 1,016.81 | 27.63 | 5.31 | 135.00 |
| 245/60-17 | +1.68 % | 50.84 | 983.19 | 28.57 | 5.79 | 147.00 |
| 245/55-17 | -1.75 % | 49.12 | 1,017.51 | 27.61 | 5.31 | 134.75 |
| 295/50-17 | +1.82 % | 50.91 | 981.79 | 28.61 | 5.81 | 147.50 |
| 335/40-17 | -1.96 % | 49.02 | 1,019.61 | 27.55 | 5.28 | 134.00 |
| 185/80-17 | +1.96 % | 50.98 | 980.39 | 28.65 | 5.83 | 148.00 |
| 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
-29.35%
|
145/30-17
d=20.43
w=1.71
-27.32%
|
145/35-17
d=21.00
w=2.00
-25.29%
|
145/40-17
d=21.57
w=2.28
-23.26%
|
145/45-17
d=22.14
w=2.57
-21.22%
|
145/50-17
d=22.71
w=2.85
-19.19%
|
145/55-17
d=23.28
w=3.14
-17.16%
|
145/60-17
d=23.85
w=3.43
-15.13%
|
145/65-17
d=24.42
w=3.71
-13.10%
|
145/70-17
d=24.99
w=4.00
-11.07%
|
145/75-17
d=25.56
w=4.28
-9.04%
|
145/80-17
d=26.13
w=4.57
-7.00%
|
145/85-17
d=26.70
w=4.85
-4.97%
|
| 155 |
155/25-17
d=20.05
w=1.53
-28.65%
|
155/30-17
d=20.66
w=1.83
-26.48%
|
155/35-17
d=21.27
w=2.14
-24.31%
|
155/40-17
d=21.88
w=2.44
-22.14%
|
155/45-17
d=22.49
w=2.75
-19.96%
|
155/50-17
d=23.10
w=3.05
-17.79%
|
155/55-17
d=23.71
w=3.36
-15.62%
|
155/60-17
d=24.32
w=3.66
-13.45%
|
155/65-17
d=24.93
w=3.97
-11.28%
|
155/70-17
d=25.54
w=4.27
-9.11%
|
155/75-17
d=26.15
w=4.58
-6.93%
|
155/80-17
d=26.76
w=4.88
-4.76%
|
155/85-17
d=27.37
w=5.19
-2.59%
|
| 165 |
165/25-17
d=20.25
w=1.62
-27.95%
|
165/30-17
d=20.90
w=1.95
-25.64%
|
165/35-17
d=21.55
w=2.27
-23.33%
|
165/40-17
d=22.20
w=2.60
-21.01%
|
165/45-17
d=22.85
w=2.92
-18.70%
|
165/50-17
d=23.50
w=3.25
-16.39%
|
165/55-17
d=24.15
w=3.57
-14.08%
|
165/60-17
d=24.80
w=3.90
-11.77%
|
165/65-17
d=25.44
w=4.22
-9.46%
|
165/70-17
d=26.09
w=4.55
-7.14%
|
165/75-17
d=26.74
w=4.87
-4.83%
|
165/80-17
d=27.39
w=5.20
-2.52%
|
165/85-17
d=28.04
w=5.52
-0.21%
|
| 175 |
175/25-17
d=20.44
w=1.72
-27.25%
|
175/30-17
d=21.13
w=2.07
-24.80%
|
175/35-17
d=21.82
w=2.41
-22.35%
|
175/40-17
d=22.51
w=2.76
-19.89%
|
175/45-17
d=23.20
w=3.10
-17.44%
|
175/50-17
d=23.89
w=3.44
-14.99%
|
175/55-17
d=24.58
w=3.79
-12.54%
|
175/60-17
d=25.27
w=4.13
-10.09%
|
175/65-17
d=25.96
w=4.48
-7.64%
|
175/70-17
d=26.65
w=4.82
-5.18%
|
175/75-17
d=27.33
w=5.17
-2.73%
|
175/80-17
d=28.02
w=5.51
-0.28%
|
175/85-17
d=28.71
w=5.86
+2.17%
|
| 185 |
185/25-17
d=20.64
w=1.82
-26.55%
|
185/30-17
d=21.37
w=2.19
-23.96%
|
185/35-17
d=22.10
w=2.55
-21.36%
|
185/40-17
d=22.83
w=2.91
-18.77%
|
185/45-17
d=23.56
w=3.28
-16.18%
|
185/50-17
d=24.28
w=3.64
-13.59%
|
185/55-17
d=25.01
w=4.01
-11.00%
|
185/60-17
d=25.74
w=4.37
-8.41%
|
185/65-17
d=26.47
w=4.73
-5.81%
|
185/70-17
d=27.20
w=5.10
-3.22%
|
185/75-17
d=27.93
w=5.46
-0.63%
|
185/80-17
d=28.65
w=5.83
+1.96%
|
185/85-17
d=29.38
w=6.19
+4.55%
|
| 195 |
195/25-17
d=20.84
w=1.92
-25.85%
|
195/30-17
d=21.61
w=2.30
-23.12%
|
195/35-17
d=22.37
w=2.69
-20.38%
|
195/40-17
d=23.14
w=3.07
-17.65%
|
195/45-17
d=23.91
w=3.45
-14.92%
|
195/50-17
d=24.68
w=3.84
-12.19%
|
195/55-17
d=25.44
w=4.22
-9.46%
|
195/60-17
d=26.21
w=4.61
-6.72%
|
195/65-17
d=26.98
w=4.99
-3.99%
|
195/70-17
d=27.75
w=5.37
-1.26%
|
195/75-17
d=28.52
w=5.76
+1.47%
|
195/80-17
d=29.28
w=6.14
+4.20%
|
195/85-17
d=30.05
w=6.53
+6.93%
|
| 205 |
205/25-17
d=21.04
w=2.02
-25.15%
|
205/30-17
d=21.84
w=2.42
-22.28%
|
205/35-17
d=22.65
w=2.82
-19.40%
|
205/40-17
d=23.46
w=3.23
-16.53%
|
205/45-17
d=24.26
w=3.63
-13.66%
|
205/50-17
d=25.07
w=4.04
-10.79%
|
205/55-17
d=25.88
w=4.44
-7.92%
|
205/60-17
d=26.69
w=4.84
-5.04%
|
205/65-17
d=27.49
w=5.25
-2.17%
|
205/70-17
d=28.30
w=5.65
+0.70%
|
205/75-17
d=29.11
w=6.05
+3.57%
|
205/80-17
d=29.91
w=6.46
+6.44%
|
205/85-17
d=30.72
w=6.86
+9.32%
|
| 215 |
215/25-17
d=21.23
w=2.12
-24.45%
|
215/30-17
d=22.08
w=2.54
-21.43%
|
215/35-17
d=22.93
w=2.96
-18.42%
|
215/40-17
d=23.77
w=3.39
-15.41%
|
215/45-17
d=24.62
w=3.81
-12.40%
|
215/50-17
d=25.46
w=4.23
-9.39%
|
215/55-17
d=26.31
w=4.66
-6.37%
|
215/60-17
d=27.16
w=5.08
-3.36%
|
215/65-17
d=28.00
w=5.50
-0.35%
|
215/70-17
d=28.85
w=5.93
+2.66%
|
215/75-17
d=29.70
w=6.35
+5.67%
|
215/80-17
d=30.54
w=6.77
+8.69%
|
215/85-17
d=31.39
w=7.19
+11.70%
|
| 225 |
225/25-17
d=21.43
w=2.21
-23.75%
|
225/30-17
d=22.31
w=2.66
-20.59%
|
225/35-17
d=23.20
w=3.10
-17.44%
|
225/40-17
d=24.09
w=3.54
-14.29%
|
225/45-17
d=24.97
w=3.99
-11.14%
|
225/50-17
d=25.86
w=4.43
-7.99%
|
225/55-17
d=26.74
w=4.87
-4.83%
|
225/60-17
d=27.63
w=5.31
-1.68%
|
225/65-17
d=28.52
w=5.76
+1.47%
|
225/70-17
d=29.40
w=6.20
+4.62%
|
225/75-17
d=30.29
w=6.64
+7.78%
|
225/80-17
d=31.17
w=7.09
+10.93%
|
225/85-17
d=32.06
w=7.53
+14.08%
|
| 235 |
235/25-17
d=21.63
w=2.31
-23.05%
|
235/30-17
d=22.55
w=2.78
-19.75%
|
235/35-17
d=23.48
w=3.24
-16.46%
|
235/40-17
d=24.40
w=3.70
-13.17%
|
235/45-17
d=25.33
w=4.16
-9.88%
|
235/50-17
d=26.25
w=4.63
-6.58%
|
235/55-17
d=27.18
w=5.09
-3.29%
|
235/60-17
d=28.10
w=5.55
0.00%
|
235/65-17
d=29.03
w=6.01
+3.29%
|
235/70-17
d=29.95
w=6.48
+6.58%
|
235/75-17
d=30.88
w=6.94
+9.88%
|
235/80-17
d=31.80
w=7.40
+13.17%
|
235/85-17
d=32.73
w=7.86
+16.46%
|
| 245 |
245/25-17
d=21.82
w=2.41
-22.35%
|
245/30-17
d=22.79
w=2.89
-18.91%
|
245/35-17
d=23.75
w=3.38
-15.48%
|
245/40-17
d=24.72
w=3.86
-12.05%
|
245/45-17
d=25.68
w=4.34
-8.62%
|
245/50-17
d=26.65
w=4.82
-5.18%
|
245/55-17
d=27.61
w=5.31
-1.75%
|
245/60-17
d=28.57
w=5.79
+1.68%
|
245/65-17
d=29.54
w=6.27
+5.11%
|
245/70-17
d=30.50
w=6.75
+8.55%
|
245/75-17
d=31.47
w=7.23
+11.98%
|
245/80-17
d=32.43
w=7.72
+15.41%
|
245/85-17
d=33.40
w=8.20
+18.84%
|
| 255 |
255/25-17
d=22.02
w=2.51
-21.64%
|
255/30-17
d=23.02
w=3.01
-18.07%
|
255/35-17
d=24.03
w=3.51
-14.50%
|
255/40-17
d=25.03
w=4.02
-10.93%
|
255/45-17
d=26.04
w=4.52
-7.36%
|
255/50-17
d=27.04
w=5.02
-3.78%
|
255/55-17
d=28.04
w=5.52
-0.21%
|
255/60-17
d=29.05
w=6.02
+3.36%
|
255/65-17
d=30.05
w=6.53
+6.93%
|
255/70-17
d=31.06
w=7.03
+10.51%
|
255/75-17
d=32.06
w=7.53
+14.08%
|
255/80-17
d=33.06
w=8.03
+17.65%
|
255/85-17
d=34.07
w=8.53
+21.22%
|
| 265 |
265/25-17
d=22.22
w=2.61
-20.94%
|
265/30-17
d=23.26
w=3.13
-17.23%
|
265/35-17
d=24.30
w=3.65
-13.52%
|
265/40-17
d=25.35
w=4.17
-9.81%
|
265/45-17
d=26.39
w=4.69
-6.09%
|
265/50-17
d=27.43
w=5.22
-2.38%
|
265/55-17
d=28.48
w=5.74
+1.33%
|
265/60-17
d=29.52
w=6.26
+5.04%
|
265/65-17
d=30.56
w=6.78
+8.76%
|
265/70-17
d=31.61
w=7.30
+12.47%
|
265/75-17
d=32.65
w=7.82
+16.18%
|
265/80-17
d=33.69
w=8.35
+19.89%
|
265/85-17
d=34.74
w=8.87
+23.61%
|
| 275 |
275/25-17
d=22.41
w=2.71
-20.24%
|
275/30-17
d=23.50
w=3.25
-16.39%
|
275/35-17
d=24.58
w=3.79
-12.54%
|
275/40-17
d=25.66
w=4.33
-8.69%
|
275/45-17
d=26.74
w=4.87
-4.83%
|
275/50-17
d=27.83
w=5.41
-0.98%
|
275/55-17
d=28.91
w=5.95
+2.87%
|
275/60-17
d=29.99
w=6.50
+6.72%
|
275/65-17
d=31.07
w=7.04
+10.58%
|
275/70-17
d=32.16
w=7.58
+14.43%
|
275/75-17
d=33.24
w=8.12
+18.28%
|
275/80-17
d=34.32
w=8.66
+22.14%
|
275/85-17
d=35.41
w=9.20
+25.99%
|
| 285 |
285/25-17
d=22.61
w=2.81
-19.54%
|
285/30-17
d=23.73
w=3.37
-15.55%
|
285/35-17
d=24.85
w=3.93
-11.56%
|
285/40-17
d=25.98
w=4.49
-7.57%
|
285/45-17
d=27.10
w=5.05
-3.57%
|
285/50-17
d=28.22
w=5.61
+0.42%
|
285/55-17
d=29.34
w=6.17
+4.41%
|
285/60-17
d=30.46
w=6.73
+8.41%
|
285/65-17
d=31.59
w=7.29
+12.40%
|
285/70-17
d=32.71
w=7.85
+16.39%
|
285/75-17
d=33.83
w=8.42
+20.38%
|
285/80-17
d=34.95
w=8.98
+24.38%
|
285/85-17
d=36.07
w=9.54
+28.37%
|
| 295 |
295/25-17
d=22.81
w=2.90
-18.84%
|
295/30-17
d=23.97
w=3.48
-14.71%
|
295/35-17
d=25.13
w=4.06
-10.58%
|
295/40-17
d=26.29
w=4.65
-6.44%
|
295/45-17
d=27.45
w=5.23
-2.31%
|
295/50-17
d=28.61
w=5.81
+1.82%
|
295/55-17
d=29.78
w=6.39
+5.95%
|
295/60-17
d=30.94
w=6.97
+10.09%
|
295/65-17
d=32.10
w=7.55
+14.22%
|
295/70-17
d=33.26
w=8.13
+18.35%
|
295/75-17
d=34.42
w=8.71
+22.49%
|
295/80-17
d=35.58
w=9.29
+26.62%
|
295/85-17
d=36.74
w=9.87
+30.75%
|
| 305 |
305/25-17
d=23.00
w=3.00
-18.14%
|
305/30-17
d=24.20
w=3.60
-13.87%
|
305/35-17
d=25.41
w=4.20
-9.60%
|
305/40-17
d=26.61
w=4.80
-5.32%
|
305/45-17
d=27.81
w=5.40
-1.05%
|
305/50-17
d=29.01
w=6.00
+3.22%
|
305/55-17
d=30.21
w=6.60
+7.50%
|
305/60-17
d=31.41
w=7.20
+11.77%
|
305/65-17
d=32.61
w=7.81
+16.04%
|
305/70-17
d=33.81
w=8.41
+20.31%
|
305/75-17
d=35.01
w=9.01
+24.59%
|
305/80-17
d=36.21
w=9.61
+28.86%
|
305/85-17
d=37.41
w=10.21
+33.13%
|
| 315 |
315/25-17
d=23.20
w=3.10
-17.44%
|
315/30-17
d=24.44
w=3.72
-13.03%
|
315/35-17
d=25.68
w=4.34
-8.62%
|
315/40-17
d=26.92
w=4.96
-4.20%
|
315/45-17
d=28.16
w=5.58
+0.21%
|
315/50-17
d=29.40
w=6.20
+4.62%
|
315/55-17
d=30.64
w=6.82
+9.04%
|
315/60-17
d=31.88
w=7.44
+13.45%
|
315/65-17
d=33.12
w=8.06
+17.86%
|
315/70-17
d=34.36
w=8.68
+22.28%
|
315/75-17
d=35.60
w=9.30
+26.69%
|
315/80-17
d=36.84
w=9.92
+31.10%
|
315/85-17
d=38.08
w=10.54
+35.51%
|
| 325 |
325/25-17
d=23.40
w=3.20
-16.74%
|
325/30-17
d=24.68
w=3.84
-12.19%
|
325/35-17
d=25.96
w=4.48
-7.64%
|
325/40-17
d=27.24
w=5.12
-3.08%
|
325/45-17
d=28.52
w=5.76
+1.47%
|
325/50-17
d=29.80
w=6.40
+6.02%
|
325/55-17
d=31.07
w=7.04
+10.58%
|
325/60-17
d=32.35
w=7.68
+15.13%
|
325/65-17
d=33.63
w=8.32
+19.68%
|
325/70-17
d=34.91
w=8.96
+24.24%
|
325/75-17
d=36.19
w=9.60
+28.79%
|
325/80-17
d=37.47
w=10.24
+33.34%
|
325/85-17
d=38.75
w=10.88
+37.90%
|
| 335 |
335/25-17
d=23.59
w=3.30
-16.04%
|
335/30-17
d=24.91
w=3.96
-11.35%
|
335/35-17
d=26.23
w=4.62
-6.65%
|
335/40-17
d=27.55
w=5.28
-1.96%
|
335/45-17
d=28.87
w=5.94
+2.73%
|
335/50-17
d=30.19
w=6.59
+7.43%
|
335/55-17
d=31.51
w=7.25
+12.12%
|
335/60-17
d=32.83
w=7.91
+16.81%
|
335/65-17
d=34.15
w=8.57
+21.50%
|
335/70-17
d=35.46
w=9.23
+26.20%
|
335/75-17
d=36.78
w=9.89
+30.89%
|
335/80-17
d=38.10
w=10.55
+35.58%
|
335/85-17
d=39.42
w=11.21
+40.28%
|
|
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!