Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
---|---|---|---|---|---|---|
215/60-17 | 0.00 % | 50.00 | 1,000.00 | 27.16 | 5.08 | 129.00 |
315/45-16 | +0.01 % | 50.01 | 999.86 | 27.16 | 5.58 | 141.75 |
235/60-16 | -0.20 % | 49.90 | 1,002.03 | 27.10 | 5.55 | 141.00 |
285/50-16 | +0.23 % | 50.12 | 997.68 | 27.22 | 5.61 | 142.50 |
255/55-16 | -0.42 % | 49.79 | 1,004.20 | 27.04 | 5.52 | 140.25 |
165/85-16 | -0.42 % | 49.79 | 1,004.20 | 27.04 | 5.52 | 140.25 |
175/80-16 | -0.49 % | 49.75 | 1,004.93 | 27.02 | 5.51 | 140.00 |
205/70-16 | +0.52 % | 50.26 | 994.78 | 27.30 | 5.65 | 143.50 |
215/65-16 | -0.57 % | 49.72 | 1,005.65 | 27.00 | 5.50 | 139.75 |
185/75-16 | -0.86 % | 49.57 | 1,008.55 | 26.93 | 5.46 | 138.75 |
265/55-16 | +1.17 % | 50.59 | 988.26 | 27.48 | 5.74 | 145.75 |
275/50-16 | -1.22 % | 49.39 | 1,012.18 | 26.83 | 5.41 | 137.50 |
305/45-16 | -1.29 % | 49.35 | 1,012.90 | 26.81 | 5.40 | 137.25 |
325/45-16 | +1.32 % | 50.66 | 986.81 | 27.52 | 5.76 | 146.25 |
225/65-16 | +1.32 % | 50.66 | 986.81 | 27.52 | 5.76 | 146.25 |
195/75-16 | +1.32 % | 50.66 | 986.81 | 27.52 | 5.76 | 146.25 |
195/70-16 | -1.51 % | 49.25 | 1,015.08 | 26.75 | 5.37 | 136.50 |
245/60-16 | +1.54 % | 50.77 | 984.63 | 27.57 | 5.79 | 147.00 |
295/50-16 | +1.68 % | 50.84 | 983.18 | 27.61 | 5.81 | 147.50 |
185/80-16 | +1.83 % | 50.91 | 981.73 | 27.65 | 5.83 | 148.00 |
225/60-16 | -1.94 % | 49.03 | 1,019.43 | 26.63 | 5.31 | 135.00 |
Ratio: | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wheel Size 16
|
|||||||||||||
Wheel Size 17
|
|||||||||||||
145 |
145/25-17
d=19.85
w=1.43
-26.89%
|
145/30-17
d=20.43
w=1.71
-24.79%
|
145/35-17
d=21.00
w=2.00
-22.69%
|
145/40-17
d=21.57
w=2.28
-20.59%
|
145/45-17
d=22.14
w=2.57
-18.48%
|
145/50-17
d=22.71
w=2.85
-16.38%
|
145/55-17
d=23.28
w=3.14
-14.28%
|
145/60-17
d=23.85
w=3.43
-12.18%
|
145/65-17
d=24.42
w=3.71
-10.08%
|
145/70-17
d=24.99
w=4.00
-7.97%
|
145/75-17
d=25.56
w=4.28
-5.87%
|
145/80-17
d=26.13
w=4.57
-3.77%
|
145/85-17
d=26.70
w=4.85
-1.67%
|
155 |
155/25-17
d=20.05
w=1.53
-26.17%
|
155/30-17
d=20.66
w=1.83
-23.92%
|
155/35-17
d=21.27
w=2.14
-21.67%
|
155/40-17
d=21.88
w=2.44
-19.43%
|
155/45-17
d=22.49
w=2.75
-17.18%
|
155/50-17
d=23.10
w=3.05
-14.93%
|
155/55-17
d=23.71
w=3.36
-12.68%
|
155/60-17
d=24.32
w=3.66
-10.44%
|
155/65-17
d=24.93
w=3.97
-8.19%
|
155/70-17
d=25.54
w=4.27
-5.94%
|
155/75-17
d=26.15
w=4.58
-3.70%
|
155/80-17
d=26.76
w=4.88
-1.45%
|
155/85-17
d=27.37
w=5.19
+0.80%
|
165 |
165/25-17
d=20.25
w=1.62
-25.44%
|
165/30-17
d=20.90
w=1.95
-23.05%
|
165/35-17
d=21.55
w=2.27
-20.66%
|
165/40-17
d=22.20
w=2.60
-18.27%
|
165/45-17
d=22.85
w=2.92
-15.87%
|
165/50-17
d=23.50
w=3.25
-13.48%
|
165/55-17
d=24.15
w=3.57
-11.09%
|
165/60-17
d=24.80
w=3.90
-8.70%
|
165/65-17
d=25.44
w=4.22
-6.31%
|
165/70-17
d=26.09
w=4.55
-3.91%
|
165/75-17
d=26.74
w=4.87
-1.52%
|
165/80-17
d=27.39
w=5.20
+0.87%
|
165/85-17
d=28.04
w=5.52
+3.26%
|
175 |
175/25-17
d=20.44
w=1.72
-24.72%
|
175/30-17
d=21.13
w=2.07
-22.18%
|
175/35-17
d=21.82
w=2.41
-19.64%
|
175/40-17
d=22.51
w=2.76
-17.11%
|
175/45-17
d=23.20
w=3.10
-14.57%
|
175/50-17
d=23.89
w=3.44
-12.03%
|
175/55-17
d=24.58
w=3.79
-9.50%
|
175/60-17
d=25.27
w=4.13
-6.96%
|
175/65-17
d=25.96
w=4.48
-4.42%
|
175/70-17
d=26.65
w=4.82
-1.88%
|
175/75-17
d=27.33
w=5.17
+0.65%
|
175/80-17
d=28.02
w=5.51
+3.19%
|
175/85-17
d=28.71
w=5.86
+5.73%
|
185 |
185/25-17
d=20.64
w=1.82
-23.99%
|
185/30-17
d=21.37
w=2.19
-21.31%
|
185/35-17
d=22.10
w=2.55
-18.63%
|
185/40-17
d=22.83
w=2.91
-15.95%
|
185/45-17
d=23.56
w=3.28
-13.26%
|
185/50-17
d=24.28
w=3.64
-10.58%
|
185/55-17
d=25.01
w=4.01
-7.90%
|
185/60-17
d=25.74
w=4.37
-5.22%
|
185/65-17
d=26.47
w=4.73
-2.54%
|
185/70-17
d=27.20
w=5.10
+0.14%
|
185/75-17
d=27.93
w=5.46
+2.83%
|
185/80-17
d=28.65
w=5.83
+5.51%
|
185/85-17
d=29.38
w=6.19
+8.19%
|
195 |
195/25-17
d=20.84
w=1.92
-23.27%
|
195/30-17
d=21.61
w=2.30
-20.44%
|
195/35-17
d=22.37
w=2.69
-17.61%
|
195/40-17
d=23.14
w=3.07
-14.79%
|
195/45-17
d=23.91
w=3.45
-11.96%
|
195/50-17
d=24.68
w=3.84
-9.13%
|
195/55-17
d=25.44
w=4.22
-6.31%
|
195/60-17
d=26.21
w=4.61
-3.48%
|
195/65-17
d=26.98
w=4.99
-0.65%
|
195/70-17
d=27.75
w=5.37
+2.17%
|
195/75-17
d=28.52
w=5.76
+5.00%
|
195/80-17
d=29.28
w=6.14
+7.83%
|
195/85-17
d=30.05
w=6.53
+10.66%
|
205 |
205/25-17
d=21.04
w=2.02
-22.54%
|
205/30-17
d=21.84
w=2.42
-19.57%
|
205/35-17
d=22.65
w=2.82
-16.60%
|
205/40-17
d=23.46
w=3.23
-13.63%
|
205/45-17
d=24.26
w=3.63
-10.66%
|
205/50-17
d=25.07
w=4.04
-7.68%
|
205/55-17
d=25.88
w=4.44
-4.71%
|
205/60-17
d=26.69
w=4.84
-1.74%
|
205/65-17
d=27.49
w=5.25
+1.23%
|
205/70-17
d=28.30
w=5.65
+4.20%
|
205/75-17
d=29.11
w=6.05
+7.18%
|
205/80-17
d=29.91
w=6.46
+10.15%
|
205/85-17
d=30.72
w=6.86
+13.12%
|
215 |
215/25-17
d=21.23
w=2.12
-21.82%
|
215/30-17
d=22.08
w=2.54
-18.70%
|
215/35-17
d=22.93
w=2.96
-15.58%
|
215/40-17
d=23.77
w=3.39
-12.47%
|
215/45-17
d=24.62
w=3.81
-9.35%
|
215/50-17
d=25.46
w=4.23
-6.23%
|
215/55-17
d=26.31
w=4.66
-3.12%
|
215/60-17
d=27.16
w=5.08
0.00%
|
215/65-17
d=28.00
w=5.50
+3.12%
|
215/70-17
d=28.85
w=5.93
+6.23%
|
215/75-17
d=29.70
w=6.35
+9.35%
|
215/80-17
d=30.54
w=6.77
+12.47%
|
215/85-17
d=31.39
w=7.19
+15.58%
|
225 |
225/25-17
d=21.43
w=2.21
-21.09%
|
225/30-17
d=22.31
w=2.66
-17.83%
|
225/35-17
d=23.20
w=3.10
-14.57%
|
225/40-17
d=24.09
w=3.54
-11.31%
|
225/45-17
d=24.97
w=3.99
-8.05%
|
225/50-17
d=25.86
w=4.43
-4.78%
|
225/55-17
d=26.74
w=4.87
-1.52%
|
225/60-17
d=27.63
w=5.31
+1.74%
|
225/65-17
d=28.52
w=5.76
+5.00%
|
225/70-17
d=29.40
w=6.20
+8.26%
|
225/75-17
d=30.29
w=6.64
+11.53%
|
225/80-17
d=31.17
w=7.09
+14.79%
|
225/85-17
d=32.06
w=7.53
+18.05%
|
235 |
235/25-17
d=21.63
w=2.31
-20.37%
|
235/30-17
d=22.55
w=2.78
-16.96%
|
235/35-17
d=23.48
w=3.24
-13.55%
|
235/40-17
d=24.40
w=3.70
-10.15%
|
235/45-17
d=25.33
w=4.16
-6.74%
|
235/50-17
d=26.25
w=4.63
-3.33%
|
235/55-17
d=27.18
w=5.09
+0.07%
|
235/60-17
d=28.10
w=5.55
+3.48%
|
235/65-17
d=29.03
w=6.01
+6.89%
|
235/70-17
d=29.95
w=6.48
+10.29%
|
235/75-17
d=30.88
w=6.94
+13.70%
|
235/80-17
d=31.80
w=7.40
+17.11%
|
235/85-17
d=32.73
w=7.86
+20.51%
|
245 |
245/25-17
d=21.82
w=2.41
-19.64%
|
245/30-17
d=22.79
w=2.89
-16.09%
|
245/35-17
d=23.75
w=3.38
-12.54%
|
245/40-17
d=24.72
w=3.86
-8.99%
|
245/45-17
d=25.68
w=4.34
-5.44%
|
245/50-17
d=26.65
w=4.82
-1.88%
|
245/55-17
d=27.61
w=5.31
+1.67%
|
245/60-17
d=28.57
w=5.79
+5.22%
|
245/65-17
d=29.54
w=6.27
+8.77%
|
245/70-17
d=30.50
w=6.75
+12.32%
|
245/75-17
d=31.47
w=7.23
+15.87%
|
245/80-17
d=32.43
w=7.72
+19.43%
|
245/85-17
d=33.40
w=8.20
+22.98%
|
255 |
255/25-17
d=22.02
w=2.51
-18.92%
|
255/30-17
d=23.02
w=3.01
-15.22%
|
255/35-17
d=24.03
w=3.51
-11.53%
|
255/40-17
d=25.03
w=4.02
-7.83%
|
255/45-17
d=26.04
w=4.52
-4.13%
|
255/50-17
d=27.04
w=5.02
-0.43%
|
255/55-17
d=28.04
w=5.52
+3.26%
|
255/60-17
d=29.05
w=6.02
+6.96%
|
255/65-17
d=30.05
w=6.53
+10.66%
|
255/70-17
d=31.06
w=7.03
+14.35%
|
255/75-17
d=32.06
w=7.53
+18.05%
|
255/80-17
d=33.06
w=8.03
+21.75%
|
255/85-17
d=34.07
w=8.53
+25.44%
|
265 |
265/25-17
d=22.22
w=2.61
-18.19%
|
265/30-17
d=23.26
w=3.13
-14.35%
|
265/35-17
d=24.30
w=3.65
-10.51%
|
265/40-17
d=25.35
w=4.17
-6.67%
|
265/45-17
d=26.39
w=4.69
-2.83%
|
265/50-17
d=27.43
w=5.22
+1.01%
|
265/55-17
d=28.48
w=5.74
+4.86%
|
265/60-17
d=29.52
w=6.26
+8.70%
|
265/65-17
d=30.56
w=6.78
+12.54%
|
265/70-17
d=31.61
w=7.30
+16.38%
|
265/75-17
d=32.65
w=7.82
+20.22%
|
265/80-17
d=33.69
w=8.35
+24.06%
|
265/85-17
d=34.74
w=8.87
+27.91%
|
275 |
275/25-17
d=22.41
w=2.71
-17.47%
|
275/30-17
d=23.50
w=3.25
-13.48%
|
275/35-17
d=24.58
w=3.79
-9.50%
|
275/40-17
d=25.66
w=4.33
-5.51%
|
275/45-17
d=26.74
w=4.87
-1.52%
|
275/50-17
d=27.83
w=5.41
+2.46%
|
275/55-17
d=28.91
w=5.95
+6.45%
|
275/60-17
d=29.99
w=6.50
+10.44%
|
275/65-17
d=31.07
w=7.04
+14.42%
|
275/70-17
d=32.16
w=7.58
+18.41%
|
275/75-17
d=33.24
w=8.12
+22.40%
|
275/80-17
d=34.32
w=8.66
+26.38%
|
275/85-17
d=35.41
w=9.20
+30.37%
|
285 |
285/25-17
d=22.61
w=2.81
-16.74%
|
285/30-17
d=23.73
w=3.37
-12.61%
|
285/35-17
d=24.85
w=3.93
-8.48%
|
285/40-17
d=25.98
w=4.49
-4.35%
|
285/45-17
d=27.10
w=5.05
-0.22%
|
285/50-17
d=28.22
w=5.61
+3.91%
|
285/55-17
d=29.34
w=6.17
+8.05%
|
285/60-17
d=30.46
w=6.73
+12.18%
|
285/65-17
d=31.59
w=7.29
+16.31%
|
285/70-17
d=32.71
w=7.85
+20.44%
|
285/75-17
d=33.83
w=8.42
+24.57%
|
285/80-17
d=34.95
w=8.98
+28.70%
|
285/85-17
d=36.07
w=9.54
+32.84%
|
295 |
295/25-17
d=22.81
w=2.90
-16.02%
|
295/30-17
d=23.97
w=3.48
-11.74%
|
295/35-17
d=25.13
w=4.06
-7.47%
|
295/40-17
d=26.29
w=4.65
-3.19%
|
295/45-17
d=27.45
w=5.23
+1.09%
|
295/50-17
d=28.61
w=5.81
+5.36%
|
295/55-17
d=29.78
w=6.39
+9.64%
|
295/60-17
d=30.94
w=6.97
+13.92%
|
295/65-17
d=32.10
w=7.55
+18.19%
|
295/70-17
d=33.26
w=8.13
+22.47%
|
295/75-17
d=34.42
w=8.71
+26.75%
|
295/80-17
d=35.58
w=9.29
+31.02%
|
295/85-17
d=36.74
w=9.87
+35.30%
|
305 |
305/25-17
d=23.00
w=3.00
-15.29%
|
305/30-17
d=24.20
w=3.60
-10.87%
|
305/35-17
d=25.41
w=4.20
-6.45%
|
305/40-17
d=26.61
w=4.80
-2.03%
|
305/45-17
d=27.81
w=5.40
+2.39%
|
305/50-17
d=29.01
w=6.00
+6.81%
|
305/55-17
d=30.21
w=6.60
+11.24%
|
305/60-17
d=31.41
w=7.20
+15.66%
|
305/65-17
d=32.61
w=7.81
+20.08%
|
305/70-17
d=33.81
w=8.41
+24.50%
|
305/75-17
d=35.01
w=9.01
+28.92%
|
305/80-17
d=36.21
w=9.61
+33.34%
|
305/85-17
d=37.41
w=10.21
+37.76%
|
315 |
315/25-17
d=23.20
w=3.10
-14.57%
|
315/30-17
d=24.44
w=3.72
-10.00%
|
315/35-17
d=25.68
w=4.34
-5.44%
|
315/40-17
d=26.92
w=4.96
-0.87%
|
315/45-17
d=28.16
w=5.58
+3.70%
|
315/50-17
d=29.40
w=6.20
+8.26%
|
315/55-17
d=30.64
w=6.82
+12.83%
|
315/60-17
d=31.88
w=7.44
+17.40%
|
315/65-17
d=33.12
w=8.06
+21.96%
|
315/70-17
d=34.36
w=8.68
+26.53%
|
315/75-17
d=35.60
w=9.30
+31.10%
|
315/80-17
d=36.84
w=9.92
+35.66%
|
315/85-17
d=38.08
w=10.54
+40.23%
|
325 |
325/25-17
d=23.40
w=3.20
-13.84%
|
325/30-17
d=24.68
w=3.84
-9.13%
|
325/35-17
d=25.96
w=4.48
-4.42%
|
325/40-17
d=27.24
w=5.12
+0.29%
|
325/45-17
d=28.52
w=5.76
+5.00%
|
325/50-17
d=29.80
w=6.40
+9.71%
|
325/55-17
d=31.07
w=7.04
+14.42%
|
325/60-17
d=32.35
w=7.68
+19.14%
|
325/65-17
d=33.63
w=8.32
+23.85%
|
325/70-17
d=34.91
w=8.96
+28.56%
|
325/75-17
d=36.19
w=9.60
+33.27%
|
325/80-17
d=37.47
w=10.24
+37.98%
|
325/85-17
d=38.75
w=10.88
+42.69%
|
335 |
335/25-17
d=23.59
w=3.30
-13.12%
|
335/30-17
d=24.91
w=3.96
-8.26%
|
335/35-17
d=26.23
w=4.62
-3.41%
|
335/40-17
d=27.55
w=5.28
+1.45%
|
335/45-17
d=28.87
w=5.94
+6.31%
|
335/50-17
d=30.19
w=6.59
+11.16%
|
335/55-17
d=31.51
w=7.25
+16.02%
|
335/60-17
d=32.83
w=7.91
+20.88%
|
335/65-17
d=34.15
w=8.57
+25.73%
|
335/70-17
d=35.46
w=9.23
+30.59%
|
335/75-17
d=36.78
w=9.89
+35.45%
|
335/80-17
d=38.10
w=10.55
+40.30%
|
335/85-17
d=39.42
w=11.21
+45.16%
|
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!