| Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
|---|---|---|---|---|---|---|
| 205/50-17 | 0.00 % | 50.00 | 1,000.00 | 25.07 | 4.04 | 102.50 |
| 255/40-17 | -0.16 % | 49.92 | 1,001.57 | 25.03 | 4.02 | 102.00 |
| 185/55-17 | -0.24 % | 49.88 | 1,002.36 | 25.01 | 4.01 | 101.75 |
| 295/35-17 | +0.24 % | 50.12 | 997.64 | 25.13 | 4.06 | 103.25 |
| 145/70-17 | -0.31 % | 49.84 | 1,003.14 | 24.99 | 4.00 | 101.50 |
| 225/45-17 | -0.39 % | 49.80 | 1,003.93 | 24.97 | 3.99 | 101.25 |
| 155/65-17 | -0.55 % | 49.73 | 1,005.50 | 24.93 | 3.97 | 100.75 |
| 335/30-17 | -0.63 % | 49.69 | 1,006.28 | 24.91 | 3.96 | 100.50 |
| 175/60-17 | +0.79 % | 50.39 | 992.15 | 25.27 | 4.13 | 105.00 |
| 285/35-17 | -0.86 % | 49.57 | 1,008.64 | 24.85 | 3.93 | 99.75 |
| 235/45-17 | +1.02 % | 50.51 | 989.79 | 25.33 | 4.16 | 105.75 |
| 165/60-17 | -1.10 % | 49.45 | 1,010.99 | 24.80 | 3.90 | 99.00 |
| 265/40-17 | +1.10 % | 50.55 | 989.01 | 25.35 | 4.17 | 106.00 |
| 305/35-17 | +1.33 % | 50.67 | 986.65 | 25.41 | 4.20 | 106.75 |
| 245/40-17 | -1.41 % | 49.29 | 1,014.13 | 24.72 | 3.86 | 98.00 |
| 195/55-17 | +1.49 % | 50.75 | 985.08 | 25.44 | 4.22 | 107.25 |
| 165/65-17 | +1.49 % | 50.75 | 985.08 | 25.44 | 4.22 | 107.25 |
| 325/30-17 | -1.57 % | 49.21 | 1,015.70 | 24.68 | 3.84 | 97.50 |
| 195/50-17 | -1.57 % | 49.21 | 1,015.70 | 24.68 | 3.84 | 97.50 |
| 215/50-17 | +1.57 % | 50.79 | 984.30 | 25.46 | 4.23 | 107.50 |
| 215/45-17 | -1.81 % | 49.10 | 1,018.06 | 24.62 | 3.81 | 96.75 |
| 155/70-17 | +1.88 % | 50.94 | 981.16 | 25.54 | 4.27 | 108.50 |
| 275/35-17 | -1.96 % | 49.02 | 1,019.63 | 24.58 | 3.79 | 96.25 |
| 175/55-17 | -1.96 % | 49.02 | 1,019.63 | 24.58 | 3.79 | 96.25 |
| 145/75-17 | +1.96 % | 50.98 | 980.37 | 25.56 | 4.28 | 108.75 |
| 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
-20.81%
|
145/30-17
d=20.43
w=1.71
-18.53%
|
145/35-17
d=21.00
w=2.00
-16.25%
|
145/40-17
d=21.57
w=2.28
-13.98%
|
145/45-17
d=22.14
w=2.57
-11.70%
|
145/50-17
d=22.71
w=2.85
-9.42%
|
145/55-17
d=23.28
w=3.14
-7.15%
|
145/60-17
d=23.85
w=3.43
-4.87%
|
145/65-17
d=24.42
w=3.71
-2.59%
|
145/70-17
d=24.99
w=4.00
-0.31%
|
145/75-17
d=25.56
w=4.28
+1.96%
|
145/80-17
d=26.13
w=4.57
+4.24%
|
145/85-17
d=26.70
w=4.85
+6.52%
|
| 155 |
155/25-17
d=20.05
w=1.53
-20.02%
|
155/30-17
d=20.66
w=1.83
-17.59%
|
155/35-17
d=21.27
w=2.14
-15.15%
|
155/40-17
d=21.88
w=2.44
-12.72%
|
155/45-17
d=22.49
w=2.75
-10.29%
|
155/50-17
d=23.10
w=3.05
-7.85%
|
155/55-17
d=23.71
w=3.36
-5.42%
|
155/60-17
d=24.32
w=3.66
-2.98%
|
155/65-17
d=24.93
w=3.97
-0.55%
|
155/70-17
d=25.54
w=4.27
+1.88%
|
155/75-17
d=26.15
w=4.58
+4.32%
|
155/80-17
d=26.76
w=4.88
+6.75%
|
155/85-17
d=27.37
w=5.19
+9.19%
|
| 165 |
165/25-17
d=20.25
w=1.62
-19.24%
|
165/30-17
d=20.90
w=1.95
-16.65%
|
165/35-17
d=21.55
w=2.27
-14.05%
|
165/40-17
d=22.20
w=2.60
-11.46%
|
165/45-17
d=22.85
w=2.92
-8.87%
|
165/50-17
d=23.50
w=3.25
-6.28%
|
165/55-17
d=24.15
w=3.57
-3.69%
|
165/60-17
d=24.80
w=3.90
-1.10%
|
165/65-17
d=25.44
w=4.22
+1.49%
|
165/70-17
d=26.09
w=4.55
+4.08%
|
165/75-17
d=26.74
w=4.87
+6.67%
|
165/80-17
d=27.39
w=5.20
+9.27%
|
165/85-17
d=28.04
w=5.52
+11.86%
|
| 175 |
175/25-17
d=20.44
w=1.72
-18.45%
|
175/30-17
d=21.13
w=2.07
-15.70%
|
175/35-17
d=21.82
w=2.41
-12.96%
|
175/40-17
d=22.51
w=2.76
-10.21%
|
175/45-17
d=23.20
w=3.10
-7.46%
|
175/50-17
d=23.89
w=3.44
-4.71%
|
175/55-17
d=24.58
w=3.79
-1.96%
|
175/60-17
d=25.27
w=4.13
+0.79%
|
175/65-17
d=25.96
w=4.48
+3.53%
|
175/70-17
d=26.65
w=4.82
+6.28%
|
175/75-17
d=27.33
w=5.17
+9.03%
|
175/80-17
d=28.02
w=5.51
+11.78%
|
175/85-17
d=28.71
w=5.86
+14.53%
|
| 185 |
185/25-17
d=20.64
w=1.82
-17.67%
|
185/30-17
d=21.37
w=2.19
-14.76%
|
185/35-17
d=22.10
w=2.55
-11.86%
|
185/40-17
d=22.83
w=2.91
-8.95%
|
185/45-17
d=23.56
w=3.28
-6.05%
|
185/50-17
d=24.28
w=3.64
-3.14%
|
185/55-17
d=25.01
w=4.01
-0.24%
|
185/60-17
d=25.74
w=4.37
+2.67%
|
185/65-17
d=26.47
w=4.73
+5.57%
|
185/70-17
d=27.20
w=5.10
+8.48%
|
185/75-17
d=27.93
w=5.46
+11.39%
|
185/80-17
d=28.65
w=5.83
+14.29%
|
185/85-17
d=29.38
w=6.19
+17.20%
|
| 195 |
195/25-17
d=20.84
w=1.92
-16.88%
|
195/30-17
d=21.61
w=2.30
-13.82%
|
195/35-17
d=22.37
w=2.69
-10.76%
|
195/40-17
d=23.14
w=3.07
-7.69%
|
195/45-17
d=23.91
w=3.45
-4.63%
|
195/50-17
d=24.68
w=3.84
-1.57%
|
195/55-17
d=25.44
w=4.22
+1.49%
|
195/60-17
d=26.21
w=4.61
+4.55%
|
195/65-17
d=26.98
w=4.99
+7.62%
|
195/70-17
d=27.75
w=5.37
+10.68%
|
195/75-17
d=28.52
w=5.76
+13.74%
|
195/80-17
d=29.28
w=6.14
+16.80%
|
195/85-17
d=30.05
w=6.53
+19.86%
|
| 205 |
205/25-17
d=21.04
w=2.02
-16.10%
|
205/30-17
d=21.84
w=2.42
-12.88%
|
205/35-17
d=22.65
w=2.82
-9.66%
|
205/40-17
d=23.46
w=3.23
-6.44%
|
205/45-17
d=24.26
w=3.63
-3.22%
|
205/50-17
d=25.07
w=4.04
0.00%
|
205/55-17
d=25.88
w=4.44
+3.22%
|
205/60-17
d=26.69
w=4.84
+6.44%
|
205/65-17
d=27.49
w=5.25
+9.66%
|
205/70-17
d=28.30
w=5.65
+12.88%
|
205/75-17
d=29.11
w=6.05
+16.10%
|
205/80-17
d=29.91
w=6.46
+19.32%
|
205/85-17
d=30.72
w=6.86
+22.53%
|
| 215 |
215/25-17
d=21.23
w=2.12
-15.31%
|
215/30-17
d=22.08
w=2.54
-11.93%
|
215/35-17
d=22.93
w=2.96
-8.56%
|
215/40-17
d=23.77
w=3.39
-5.18%
|
215/45-17
d=24.62
w=3.81
-1.81%
|
215/50-17
d=25.46
w=4.23
+1.57%
|
215/55-17
d=26.31
w=4.66
+4.95%
|
215/60-17
d=27.16
w=5.08
+8.32%
|
215/65-17
d=28.00
w=5.50
+11.70%
|
215/70-17
d=28.85
w=5.93
+15.08%
|
215/75-17
d=29.70
w=6.35
+18.45%
|
215/80-17
d=30.54
w=6.77
+21.83%
|
215/85-17
d=31.39
w=7.19
+25.20%
|
| 225 |
225/25-17
d=21.43
w=2.21
-14.53%
|
225/30-17
d=22.31
w=2.66
-10.99%
|
225/35-17
d=23.20
w=3.10
-7.46%
|
225/40-17
d=24.09
w=3.54
-3.93%
|
225/45-17
d=24.97
w=3.99
-0.39%
|
225/50-17
d=25.86
w=4.43
+3.14%
|
225/55-17
d=26.74
w=4.87
+6.67%
|
225/60-17
d=27.63
w=5.31
+10.21%
|
225/65-17
d=28.52
w=5.76
+13.74%
|
225/70-17
d=29.40
w=6.20
+17.27%
|
225/75-17
d=30.29
w=6.64
+20.81%
|
225/80-17
d=31.17
w=7.09
+24.34%
|
225/85-17
d=32.06
w=7.53
+27.87%
|
| 235 |
235/25-17
d=21.63
w=2.31
-13.74%
|
235/30-17
d=22.55
w=2.78
-10.05%
|
235/35-17
d=23.48
w=3.24
-6.36%
|
235/40-17
d=24.40
w=3.70
-2.67%
|
235/45-17
d=25.33
w=4.16
+1.02%
|
235/50-17
d=26.25
w=4.63
+4.71%
|
235/55-17
d=27.18
w=5.09
+8.40%
|
235/60-17
d=28.10
w=5.55
+12.09%
|
235/65-17
d=29.03
w=6.01
+15.78%
|
235/70-17
d=29.95
w=6.48
+19.47%
|
235/75-17
d=30.88
w=6.94
+23.16%
|
235/80-17
d=31.80
w=7.40
+26.85%
|
235/85-17
d=32.73
w=7.86
+30.54%
|
| 245 |
245/25-17
d=21.82
w=2.41
-12.96%
|
245/30-17
d=22.79
w=2.89
-9.11%
|
245/35-17
d=23.75
w=3.38
-5.26%
|
245/40-17
d=24.72
w=3.86
-1.41%
|
245/45-17
d=25.68
w=4.34
+2.43%
|
245/50-17
d=26.65
w=4.82
+6.28%
|
245/55-17
d=27.61
w=5.31
+10.13%
|
245/60-17
d=28.57
w=5.79
+13.98%
|
245/65-17
d=29.54
w=6.27
+17.82%
|
245/70-17
d=30.50
w=6.75
+21.67%
|
245/75-17
d=31.47
w=7.23
+25.52%
|
245/80-17
d=32.43
w=7.72
+29.37%
|
245/85-17
d=33.40
w=8.20
+33.21%
|
| 255 |
255/25-17
d=22.02
w=2.51
-12.17%
|
255/30-17
d=23.02
w=3.01
-8.17%
|
255/35-17
d=24.03
w=3.51
-4.16%
|
255/40-17
d=25.03
w=4.02
-0.16%
|
255/45-17
d=26.04
w=4.52
+3.85%
|
255/50-17
d=27.04
w=5.02
+7.85%
|
255/55-17
d=28.04
w=5.52
+11.86%
|
255/60-17
d=29.05
w=6.02
+15.86%
|
255/65-17
d=30.05
w=6.53
+19.86%
|
255/70-17
d=31.06
w=7.03
+23.87%
|
255/75-17
d=32.06
w=7.53
+27.87%
|
255/80-17
d=33.06
w=8.03
+31.88%
|
255/85-17
d=34.07
w=8.53
+35.88%
|
| 265 |
265/25-17
d=22.22
w=2.61
-11.39%
|
265/30-17
d=23.26
w=3.13
-7.22%
|
265/35-17
d=24.30
w=3.65
-3.06%
|
265/40-17
d=25.35
w=4.17
+1.10%
|
265/45-17
d=26.39
w=4.69
+5.26%
|
265/50-17
d=27.43
w=5.22
+9.42%
|
265/55-17
d=28.48
w=5.74
+13.58%
|
265/60-17
d=29.52
w=6.26
+17.74%
|
265/65-17
d=30.56
w=6.78
+21.91%
|
265/70-17
d=31.61
w=7.30
+26.07%
|
265/75-17
d=32.65
w=7.82
+30.23%
|
265/80-17
d=33.69
w=8.35
+34.39%
|
265/85-17
d=34.74
w=8.87
+38.55%
|
| 275 |
275/25-17
d=22.41
w=2.71
-10.60%
|
275/30-17
d=23.50
w=3.25
-6.28%
|
275/35-17
d=24.58
w=3.79
-1.96%
|
275/40-17
d=25.66
w=4.33
+2.36%
|
275/45-17
d=26.74
w=4.87
+6.67%
|
275/50-17
d=27.83
w=5.41
+10.99%
|
275/55-17
d=28.91
w=5.95
+15.31%
|
275/60-17
d=29.99
w=6.50
+19.63%
|
275/65-17
d=31.07
w=7.04
+23.95%
|
275/70-17
d=32.16
w=7.58
+28.27%
|
275/75-17
d=33.24
w=8.12
+32.58%
|
275/80-17
d=34.32
w=8.66
+36.90%
|
275/85-17
d=35.41
w=9.20
+41.22%
|
| 285 |
285/25-17
d=22.61
w=2.81
-9.81%
|
285/30-17
d=23.73
w=3.37
-5.34%
|
285/35-17
d=24.85
w=3.93
-0.86%
|
285/40-17
d=25.98
w=4.49
+3.61%
|
285/45-17
d=27.10
w=5.05
+8.09%
|
285/50-17
d=28.22
w=5.61
+12.56%
|
285/55-17
d=29.34
w=6.17
+17.04%
|
285/60-17
d=30.46
w=6.73
+21.51%
|
285/65-17
d=31.59
w=7.29
+25.99%
|
285/70-17
d=32.71
w=7.85
+30.46%
|
285/75-17
d=33.83
w=8.42
+34.94%
|
285/80-17
d=34.95
w=8.98
+39.42%
|
285/85-17
d=36.07
w=9.54
+43.89%
|
| 295 |
295/25-17
d=22.81
w=2.90
-9.03%
|
295/30-17
d=23.97
w=3.48
-4.40%
|
295/35-17
d=25.13
w=4.06
+0.24%
|
295/40-17
d=26.29
w=4.65
+4.87%
|
295/45-17
d=27.45
w=5.23
+9.50%
|
295/50-17
d=28.61
w=5.81
+14.13%
|
295/55-17
d=29.78
w=6.39
+18.77%
|
295/60-17
d=30.94
w=6.97
+23.40%
|
295/65-17
d=32.10
w=7.55
+28.03%
|
295/70-17
d=33.26
w=8.13
+32.66%
|
295/75-17
d=34.42
w=8.71
+37.30%
|
295/80-17
d=35.58
w=9.29
+41.93%
|
295/85-17
d=36.74
w=9.87
+46.56%
|
| 305 |
305/25-17
d=23.00
w=3.00
-8.24%
|
305/30-17
d=24.20
w=3.60
-3.45%
|
305/35-17
d=25.41
w=4.20
+1.33%
|
305/40-17
d=26.61
w=4.80
+6.12%
|
305/45-17
d=27.81
w=5.40
+10.91%
|
305/50-17
d=29.01
w=6.00
+15.70%
|
305/55-17
d=30.21
w=6.60
+20.49%
|
305/60-17
d=31.41
w=7.20
+25.28%
|
305/65-17
d=32.61
w=7.81
+30.07%
|
305/70-17
d=33.81
w=8.41
+34.86%
|
305/75-17
d=35.01
w=9.01
+39.65%
|
305/80-17
d=36.21
w=9.61
+44.44%
|
305/85-17
d=37.41
w=10.21
+49.23%
|
| 315 |
315/25-17
d=23.20
w=3.10
-7.46%
|
315/30-17
d=24.44
w=3.72
-2.51%
|
315/35-17
d=25.68
w=4.34
+2.43%
|
315/40-17
d=26.92
w=4.96
+7.38%
|
315/45-17
d=28.16
w=5.58
+12.33%
|
315/50-17
d=29.40
w=6.20
+17.27%
|
315/55-17
d=30.64
w=6.82
+22.22%
|
315/60-17
d=31.88
w=7.44
+27.17%
|
315/65-17
d=33.12
w=8.06
+32.11%
|
315/70-17
d=34.36
w=8.68
+37.06%
|
315/75-17
d=35.60
w=9.30
+42.01%
|
315/80-17
d=36.84
w=9.92
+46.95%
|
315/85-17
d=38.08
w=10.54
+51.90%
|
| 325 |
325/25-17
d=23.40
w=3.20
-6.67%
|
325/30-17
d=24.68
w=3.84
-1.57%
|
325/35-17
d=25.96
w=4.48
+3.53%
|
325/40-17
d=27.24
w=5.12
+8.64%
|
325/45-17
d=28.52
w=5.76
+13.74%
|
325/50-17
d=29.80
w=6.40
+18.84%
|
325/55-17
d=31.07
w=7.04
+23.95%
|
325/60-17
d=32.35
w=7.68
+29.05%
|
325/65-17
d=33.63
w=8.32
+34.16%
|
325/70-17
d=34.91
w=8.96
+39.26%
|
325/75-17
d=36.19
w=9.60
+44.36%
|
325/80-17
d=37.47
w=10.24
+49.47%
|
325/85-17
d=38.75
w=10.88
+54.57%
|
| 335 |
335/25-17
d=23.59
w=3.30
-5.89%
|
335/30-17
d=24.91
w=3.96
-0.63%
|
335/35-17
d=26.23
w=4.62
+4.63%
|
335/40-17
d=27.55
w=5.28
+9.89%
|
335/45-17
d=28.87
w=5.94
+15.15%
|
335/50-17
d=30.19
w=6.59
+20.41%
|
335/55-17
d=31.51
w=7.25
+25.68%
|
335/60-17
d=32.83
w=7.91
+30.94%
|
335/65-17
d=34.15
w=8.57
+36.20%
|
335/70-17
d=35.46
w=9.23
+41.46%
|
335/75-17
d=36.78
w=9.89
+46.72%
|
335/80-17
d=38.10
w=10.55
+51.98%
|
335/85-17
d=39.42
w=11.21
+57.24%
|
|
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!