| Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
|---|---|---|---|---|---|---|
| 245/50-17 | 0.00 % | 50.00 | 1,000.00 | 26.65 | 4.82 | 122.50 |
| 175/70-17 | 0.00 % | 50.00 | 1,000.00 | 26.65 | 4.82 | 122.50 |
| 205/60-17 | +0.15 % | 50.07 | 998.52 | 26.69 | 4.84 | 123.00 |
| 305/40-17 | -0.15 % | 49.93 | 1,001.48 | 26.61 | 4.80 | 122.00 |
| 145/85-17 | +0.22 % | 50.11 | 997.78 | 26.70 | 4.85 | 123.25 |
| 275/45-17 | +0.37 % | 50.18 | 996.31 | 26.74 | 4.87 | 123.75 |
| 225/55-17 | +0.37 % | 50.18 | 996.31 | 26.74 | 4.87 | 123.75 |
| 165/75-17 | +0.37 % | 50.18 | 996.31 | 26.74 | 4.87 | 123.75 |
| 155/80-17 | +0.44 % | 50.22 | 995.57 | 26.76 | 4.88 | 124.00 |
| 185/65-17 | -0.66 % | 49.67 | 1,006.65 | 26.47 | 4.73 | 120.25 |
| 265/45-17 | -0.96 % | 49.52 | 1,009.60 | 26.39 | 4.69 | 119.25 |
| 315/40-17 | +1.03 % | 50.52 | 989.66 | 26.92 | 4.96 | 126.00 |
| 195/65-17 | +1.26 % | 50.63 | 987.44 | 26.98 | 4.99 | 126.75 |
| 215/55-17 | -1.26 % | 49.37 | 1,012.56 | 26.31 | 4.66 | 118.25 |
| 295/40-17 | -1.33 % | 49.34 | 1,013.30 | 26.29 | 4.65 | 118.00 |
| 255/50-17 | +1.48 % | 50.74 | 985.22 | 27.04 | 5.02 | 127.50 |
| 235/50-17 | -1.48 % | 49.26 | 1,014.78 | 26.25 | 4.63 | 117.50 |
| 335/35-17 | -1.55 % | 49.22 | 1,015.51 | 26.23 | 4.62 | 117.25 |
| 195/60-17 | -1.63 % | 49.19 | 1,016.25 | 26.21 | 4.61 | 117.00 |
| 285/45-17 | +1.70 % | 50.85 | 983.01 | 27.10 | 5.05 | 128.25 |
| 155/75-17 | -1.85 % | 49.08 | 1,018.47 | 26.15 | 4.58 | 116.25 |
| 215/60-17 | +1.92 % | 50.96 | 980.79 | 27.16 | 5.08 | 129.00 |
| 145/80-17 | -1.92 % | 49.04 | 1,019.21 | 26.13 | 4.57 | 116.00 |
| 235/55-17 | +1.99 % | 51.00 | 980.05 | 27.18 | 5.09 | 129.25 |
| 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
-25.49%
|
145/30-17
d=20.43
w=1.71
-23.35%
|
145/35-17
d=21.00
w=2.00
-21.20%
|
145/40-17
d=21.57
w=2.28
-19.06%
|
145/45-17
d=22.14
w=2.57
-16.92%
|
145/50-17
d=22.71
w=2.85
-14.78%
|
145/55-17
d=23.28
w=3.14
-12.63%
|
145/60-17
d=23.85
w=3.43
-10.49%
|
145/65-17
d=24.42
w=3.71
-8.35%
|
145/70-17
d=24.99
w=4.00
-6.21%
|
145/75-17
d=25.56
w=4.28
-4.06%
|
145/80-17
d=26.13
w=4.57
-1.92%
|
145/85-17
d=26.70
w=4.85
+0.22%
|
| 155 |
155/25-17
d=20.05
w=1.53
-24.75%
|
155/30-17
d=20.66
w=1.83
-22.46%
|
155/35-17
d=21.27
w=2.14
-20.17%
|
155/40-17
d=21.88
w=2.44
-17.88%
|
155/45-17
d=22.49
w=2.75
-15.59%
|
155/50-17
d=23.10
w=3.05
-13.30%
|
155/55-17
d=23.71
w=3.36
-11.01%
|
155/60-17
d=24.32
w=3.66
-8.72%
|
155/65-17
d=24.93
w=3.97
-6.43%
|
155/70-17
d=25.54
w=4.27
-4.14%
|
155/75-17
d=26.15
w=4.58
-1.85%
|
155/80-17
d=26.76
w=4.88
+0.44%
|
155/85-17
d=27.37
w=5.19
+2.73%
|
| 165 |
165/25-17
d=20.25
w=1.62
-24.01%
|
165/30-17
d=20.90
w=1.95
-21.57%
|
165/35-17
d=21.55
w=2.27
-19.13%
|
165/40-17
d=22.20
w=2.60
-16.70%
|
165/45-17
d=22.85
w=2.92
-14.26%
|
165/50-17
d=23.50
w=3.25
-11.82%
|
165/55-17
d=24.15
w=3.57
-9.38%
|
165/60-17
d=24.80
w=3.90
-6.94%
|
165/65-17
d=25.44
w=4.22
-4.51%
|
165/70-17
d=26.09
w=4.55
-2.07%
|
165/75-17
d=26.74
w=4.87
+0.37%
|
165/80-17
d=27.39
w=5.20
+2.81%
|
165/85-17
d=28.04
w=5.52
+5.25%
|
| 175 |
175/25-17
d=20.44
w=1.72
-23.27%
|
175/30-17
d=21.13
w=2.07
-20.69%
|
175/35-17
d=21.82
w=2.41
-18.10%
|
175/40-17
d=22.51
w=2.76
-15.51%
|
175/45-17
d=23.20
w=3.10
-12.93%
|
175/50-17
d=23.89
w=3.44
-10.34%
|
175/55-17
d=24.58
w=3.79
-7.76%
|
175/60-17
d=25.27
w=4.13
-5.17%
|
175/65-17
d=25.96
w=4.48
-2.59%
|
175/70-17
d=26.65
w=4.82
0.00%
|
175/75-17
d=27.33
w=5.17
+2.59%
|
175/80-17
d=28.02
w=5.51
+5.17%
|
175/85-17
d=28.71
w=5.86
+7.76%
|
| 185 |
185/25-17
d=20.64
w=1.82
-22.53%
|
185/30-17
d=21.37
w=2.19
-19.80%
|
185/35-17
d=22.10
w=2.55
-17.07%
|
185/40-17
d=22.83
w=2.91
-14.33%
|
185/45-17
d=23.56
w=3.28
-11.60%
|
185/50-17
d=24.28
w=3.64
-8.87%
|
185/55-17
d=25.01
w=4.01
-6.13%
|
185/60-17
d=25.74
w=4.37
-3.40%
|
185/65-17
d=26.47
w=4.73
-0.66%
|
185/70-17
d=27.20
w=5.10
+2.07%
|
185/75-17
d=27.93
w=5.46
+4.80%
|
185/80-17
d=28.65
w=5.83
+7.54%
|
185/85-17
d=29.38
w=6.19
+10.27%
|
| 195 |
195/25-17
d=20.84
w=1.92
-21.79%
|
195/30-17
d=21.61
w=2.30
-18.91%
|
195/35-17
d=22.37
w=2.69
-16.03%
|
195/40-17
d=23.14
w=3.07
-13.15%
|
195/45-17
d=23.91
w=3.45
-10.27%
|
195/50-17
d=24.68
w=3.84
-7.39%
|
195/55-17
d=25.44
w=4.22
-4.51%
|
195/60-17
d=26.21
w=4.61
-1.63%
|
195/65-17
d=26.98
w=4.99
+1.26%
|
195/70-17
d=27.75
w=5.37
+4.14%
|
195/75-17
d=28.52
w=5.76
+7.02%
|
195/80-17
d=29.28
w=6.14
+9.90%
|
195/85-17
d=30.05
w=6.53
+12.78%
|
| 205 |
205/25-17
d=21.04
w=2.02
-21.05%
|
205/30-17
d=21.84
w=2.42
-18.03%
|
205/35-17
d=22.65
w=2.82
-15.00%
|
205/40-17
d=23.46
w=3.23
-11.97%
|
205/45-17
d=24.26
w=3.63
-8.94%
|
205/50-17
d=25.07
w=4.04
-5.91%
|
205/55-17
d=25.88
w=4.44
-2.88%
|
205/60-17
d=26.69
w=4.84
+0.15%
|
205/65-17
d=27.49
w=5.25
+3.18%
|
205/70-17
d=28.30
w=5.65
+6.21%
|
205/75-17
d=29.11
w=6.05
+9.23%
|
205/80-17
d=29.91
w=6.46
+12.26%
|
205/85-17
d=30.72
w=6.86
+15.29%
|
| 215 |
215/25-17
d=21.23
w=2.12
-20.32%
|
215/30-17
d=22.08
w=2.54
-17.14%
|
215/35-17
d=22.93
w=2.96
-13.96%
|
215/40-17
d=23.77
w=3.39
-10.79%
|
215/45-17
d=24.62
w=3.81
-7.61%
|
215/50-17
d=25.46
w=4.23
-4.43%
|
215/55-17
d=26.31
w=4.66
-1.26%
|
215/60-17
d=27.16
w=5.08
+1.92%
|
215/65-17
d=28.00
w=5.50
+5.10%
|
215/70-17
d=28.85
w=5.93
+8.27%
|
215/75-17
d=29.70
w=6.35
+11.45%
|
215/80-17
d=30.54
w=6.77
+14.63%
|
215/85-17
d=31.39
w=7.19
+17.80%
|
| 225 |
225/25-17
d=21.43
w=2.21
-19.58%
|
225/30-17
d=22.31
w=2.66
-16.25%
|
225/35-17
d=23.20
w=3.10
-12.93%
|
225/40-17
d=24.09
w=3.54
-9.60%
|
225/45-17
d=24.97
w=3.99
-6.28%
|
225/50-17
d=25.86
w=4.43
-2.96%
|
225/55-17
d=26.74
w=4.87
+0.37%
|
225/60-17
d=27.63
w=5.31
+3.69%
|
225/65-17
d=28.52
w=5.76
+7.02%
|
225/70-17
d=29.40
w=6.20
+10.34%
|
225/75-17
d=30.29
w=6.64
+13.67%
|
225/80-17
d=31.17
w=7.09
+16.99%
|
225/85-17
d=32.06
w=7.53
+20.32%
|
| 235 |
235/25-17
d=21.63
w=2.31
-18.84%
|
235/30-17
d=22.55
w=2.78
-15.37%
|
235/35-17
d=23.48
w=3.24
-11.89%
|
235/40-17
d=24.40
w=3.70
-8.42%
|
235/45-17
d=25.33
w=4.16
-4.95%
|
235/50-17
d=26.25
w=4.63
-1.48%
|
235/55-17
d=27.18
w=5.09
+1.99%
|
235/60-17
d=28.10
w=5.55
+5.47%
|
235/65-17
d=29.03
w=6.01
+8.94%
|
235/70-17
d=29.95
w=6.48
+12.41%
|
235/75-17
d=30.88
w=6.94
+15.88%
|
235/80-17
d=31.80
w=7.40
+19.36%
|
235/85-17
d=32.73
w=7.86
+22.83%
|
| 245 |
245/25-17
d=21.82
w=2.41
-18.10%
|
245/30-17
d=22.79
w=2.89
-14.48%
|
245/35-17
d=23.75
w=3.38
-10.86%
|
245/40-17
d=24.72
w=3.86
-7.24%
|
245/45-17
d=25.68
w=4.34
-3.62%
|
245/50-17
d=26.65
w=4.82
0.00%
|
245/55-17
d=27.61
w=5.31
+3.62%
|
245/60-17
d=28.57
w=5.79
+7.24%
|
245/65-17
d=29.54
w=6.27
+10.86%
|
245/70-17
d=30.50
w=6.75
+14.48%
|
245/75-17
d=31.47
w=7.23
+18.10%
|
245/80-17
d=32.43
w=7.72
+21.72%
|
245/85-17
d=33.40
w=8.20
+25.34%
|
| 255 |
255/25-17
d=22.02
w=2.51
-17.36%
|
255/30-17
d=23.02
w=3.01
-13.59%
|
255/35-17
d=24.03
w=3.51
-9.83%
|
255/40-17
d=25.03
w=4.02
-6.06%
|
255/45-17
d=26.04
w=4.52
-2.29%
|
255/50-17
d=27.04
w=5.02
+1.48%
|
255/55-17
d=28.04
w=5.52
+5.25%
|
255/60-17
d=29.05
w=6.02
+9.01%
|
255/65-17
d=30.05
w=6.53
+12.78%
|
255/70-17
d=31.06
w=7.03
+16.55%
|
255/75-17
d=32.06
w=7.53
+20.32%
|
255/80-17
d=33.06
w=8.03
+24.08%
|
255/85-17
d=34.07
w=8.53
+27.85%
|
| 265 |
265/25-17
d=22.22
w=2.61
-16.62%
|
265/30-17
d=23.26
w=3.13
-12.71%
|
265/35-17
d=24.30
w=3.65
-8.79%
|
265/40-17
d=25.35
w=4.17
-4.88%
|
265/45-17
d=26.39
w=4.69
-0.96%
|
265/50-17
d=27.43
w=5.22
+2.96%
|
265/55-17
d=28.48
w=5.74
+6.87%
|
265/60-17
d=29.52
w=6.26
+10.79%
|
265/65-17
d=30.56
w=6.78
+14.70%
|
265/70-17
d=31.61
w=7.30
+18.62%
|
265/75-17
d=32.65
w=7.82
+22.53%
|
265/80-17
d=33.69
w=8.35
+26.45%
|
265/85-17
d=34.74
w=8.87
+30.36%
|
| 275 |
275/25-17
d=22.41
w=2.71
-15.88%
|
275/30-17
d=23.50
w=3.25
-11.82%
|
275/35-17
d=24.58
w=3.79
-7.76%
|
275/40-17
d=25.66
w=4.33
-3.69%
|
275/45-17
d=26.74
w=4.87
+0.37%
|
275/50-17
d=27.83
w=5.41
+4.43%
|
275/55-17
d=28.91
w=5.95
+8.50%
|
275/60-17
d=29.99
w=6.50
+12.56%
|
275/65-17
d=31.07
w=7.04
+16.62%
|
275/70-17
d=32.16
w=7.58
+20.69%
|
275/75-17
d=33.24
w=8.12
+24.75%
|
275/80-17
d=34.32
w=8.66
+28.81%
|
275/85-17
d=35.41
w=9.20
+32.88%
|
| 285 |
285/25-17
d=22.61
w=2.81
-15.14%
|
285/30-17
d=23.73
w=3.37
-10.93%
|
285/35-17
d=24.85
w=3.93
-6.72%
|
285/40-17
d=25.98
w=4.49
-2.51%
|
285/45-17
d=27.10
w=5.05
+1.70%
|
285/50-17
d=28.22
w=5.61
+5.91%
|
285/55-17
d=29.34
w=6.17
+10.12%
|
285/60-17
d=30.46
w=6.73
+14.33%
|
285/65-17
d=31.59
w=7.29
+18.54%
|
285/70-17
d=32.71
w=7.85
+22.75%
|
285/75-17
d=33.83
w=8.42
+26.97%
|
285/80-17
d=34.95
w=8.98
+31.18%
|
285/85-17
d=36.07
w=9.54
+35.39%
|
| 295 |
295/25-17
d=22.81
w=2.90
-14.41%
|
295/30-17
d=23.97
w=3.48
-10.05%
|
295/35-17
d=25.13
w=4.06
-5.69%
|
295/40-17
d=26.29
w=4.65
-1.33%
|
295/45-17
d=27.45
w=5.23
+3.03%
|
295/50-17
d=28.61
w=5.81
+7.39%
|
295/55-17
d=29.78
w=6.39
+11.75%
|
295/60-17
d=30.94
w=6.97
+16.11%
|
295/65-17
d=32.10
w=7.55
+20.46%
|
295/70-17
d=33.26
w=8.13
+24.82%
|
295/75-17
d=34.42
w=8.71
+29.18%
|
295/80-17
d=35.58
w=9.29
+33.54%
|
295/85-17
d=36.74
w=9.87
+37.90%
|
| 305 |
305/25-17
d=23.00
w=3.00
-13.67%
|
305/30-17
d=24.20
w=3.60
-9.16%
|
305/35-17
d=25.41
w=4.20
-4.65%
|
305/40-17
d=26.61
w=4.80
-0.15%
|
305/45-17
d=27.81
w=5.40
+4.36%
|
305/50-17
d=29.01
w=6.00
+8.87%
|
305/55-17
d=30.21
w=6.60
+13.37%
|
305/60-17
d=31.41
w=7.20
+17.88%
|
305/65-17
d=32.61
w=7.81
+22.38%
|
305/70-17
d=33.81
w=8.41
+26.89%
|
305/75-17
d=35.01
w=9.01
+31.40%
|
305/80-17
d=36.21
w=9.61
+35.90%
|
305/85-17
d=37.41
w=10.21
+40.41%
|
| 315 |
315/25-17
d=23.20
w=3.10
-12.93%
|
315/30-17
d=24.44
w=3.72
-8.27%
|
315/35-17
d=25.68
w=4.34
-3.62%
|
315/40-17
d=26.92
w=4.96
+1.03%
|
315/45-17
d=28.16
w=5.58
+5.69%
|
315/50-17
d=29.40
w=6.20
+10.34%
|
315/55-17
d=30.64
w=6.82
+15.00%
|
315/60-17
d=31.88
w=7.44
+19.65%
|
315/65-17
d=33.12
w=8.06
+24.31%
|
315/70-17
d=34.36
w=8.68
+28.96%
|
315/75-17
d=35.60
w=9.30
+33.61%
|
315/80-17
d=36.84
w=9.92
+38.27%
|
315/85-17
d=38.08
w=10.54
+42.92%
|
| 325 |
325/25-17
d=23.40
w=3.20
-12.19%
|
325/30-17
d=24.68
w=3.84
-7.39%
|
325/35-17
d=25.96
w=4.48
-2.59%
|
325/40-17
d=27.24
w=5.12
+2.22%
|
325/45-17
d=28.52
w=5.76
+7.02%
|
325/50-17
d=29.80
w=6.40
+11.82%
|
325/55-17
d=31.07
w=7.04
+16.62%
|
325/60-17
d=32.35
w=7.68
+21.42%
|
325/65-17
d=33.63
w=8.32
+26.23%
|
325/70-17
d=34.91
w=8.96
+31.03%
|
325/75-17
d=36.19
w=9.60
+35.83%
|
325/80-17
d=37.47
w=10.24
+40.63%
|
325/85-17
d=38.75
w=10.88
+45.43%
|
| 335 |
335/25-17
d=23.59
w=3.30
-11.45%
|
335/30-17
d=24.91
w=3.96
-6.50%
|
335/35-17
d=26.23
w=4.62
-1.55%
|
335/40-17
d=27.55
w=5.28
+3.40%
|
335/45-17
d=28.87
w=5.94
+8.35%
|
335/50-17
d=30.19
w=6.59
+13.30%
|
335/55-17
d=31.51
w=7.25
+18.25%
|
335/60-17
d=32.83
w=7.91
+23.20%
|
335/65-17
d=34.15
w=8.57
+28.15%
|
335/70-17
d=35.46
w=9.23
+33.10%
|
335/75-17
d=36.78
w=9.89
+38.05%
|
335/80-17
d=38.10
w=10.55
+43.00%
|
335/85-17
d=39.42
w=11.21
+47.95%
|
|
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!