Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
---|---|---|---|---|---|---|
185/65-15 | -0.14 % | 49.93 | 1,001.45 | 24.47 | 4.73 | 120.25 |
195/55-16 | -0.24 % | 49.88 | 1,002.41 | 24.44 | 4.22 | 107.25 |
165/65-16 | -0.24 % | 49.88 | 1,002.41 | 24.44 | 4.22 | 107.25 |
175/70-15 | +0.58 % | 50.29 | 994.22 | 24.65 | 4.82 | 122.50 |
205/60-15 | +0.74 % | 50.37 | 992.61 | 24.69 | 4.84 | 123.00 |
175/60-16 | -0.96 % | 49.52 | 1,009.64 | 24.27 | 4.13 | 105.00 |
185/60-16 | +0.96 % | 50.48 | 990.36 | 24.74 | 4.37 | 111.00 |
165/75-15 | +0.98 % | 50.49 | 990.20 | 24.74 | 4.87 | 123.75 |
195/60-15 | -1.19 % | 49.41 | 1,011.89 | 24.21 | 4.61 | 117.00 |
205/55-16 | +1.53 % | 50.76 | 984.74 | 24.88 | 4.44 | 112.75 |
165/70-15 | -1.67 % | 49.16 | 1,016.71 | 24.09 | 4.55 | 115.50 |
205/50-16 | -1.77 % | 49.12 | 1,017.67 | 24.07 | 4.04 | 102.50 |
175/65-16 | +1.85 % | 50.92 | 981.52 | 24.96 | 4.48 | 113.75 |
195/65-15 | +1.94 % | 50.97 | 980.56 | 24.98 | 4.99 | 126.75 |
Ratio: | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wheel Size 12
|
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Wheel Size 13
|
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Wheel Size 14
|
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Wheel Size 15
|
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165 |
165/25-15
d=18.25
w=1.62
-25.53%
|
165/30-15
d=18.90
w=1.95
-22.88%
|
165/35-15
d=19.55
w=2.27
-20.23%
|
165/40-15
d=20.20
w=2.60
-17.58%
|
165/45-15
d=20.85
w=2.92
-14.93%
|
165/50-15
d=21.50
w=3.25
-12.28%
|
165/55-15
d=22.15
w=3.57
-9.62%
|
165/60-15
d=22.80
w=3.90
-6.97%
|
165/65-15
d=23.44
w=4.22
-4.32%
|
165/70-15
d=24.09
w=4.55
-1.67%
|
165/75-15
d=24.74
w=4.87
+0.98%
|
165/80-15
d=25.39
w=5.20
+3.63%
|
165/85-15
d=26.04
w=5.52
+6.28%
|
175 |
175/25-15
d=18.44
w=1.72
-24.73%
|
175/30-15
d=19.13
w=2.07
-21.92%
|
175/35-15
d=19.82
w=2.41
-19.10%
|
175/40-15
d=20.51
w=2.76
-16.29%
|
175/45-15
d=21.20
w=3.10
-13.48%
|
175/50-15
d=21.89
w=3.44
-10.67%
|
175/55-15
d=22.58
w=3.79
-7.86%
|
175/60-15
d=23.27
w=4.13
-5.04%
|
175/65-15
d=23.96
w=4.48
-2.23%
|
175/70-15
d=24.65
w=4.82
+0.58%
|
175/75-15
d=25.33
w=5.17
+3.39%
|
175/80-15
d=26.02
w=5.51
+6.20%
|
175/85-15
d=26.71
w=5.86
+9.01%
|
185 |
185/25-15
d=18.64
w=1.82
-23.92%
|
185/30-15
d=19.37
w=2.19
-20.95%
|
185/35-15
d=20.10
w=2.55
-17.98%
|
185/40-15
d=20.83
w=2.91
-15.01%
|
185/45-15
d=21.56
w=3.28
-12.03%
|
185/50-15
d=22.28
w=3.64
-9.06%
|
185/55-15
d=23.01
w=4.01
-6.09%
|
185/60-15
d=23.74
w=4.37
-3.12%
|
185/65-15
d=24.47
w=4.73
-0.14%
|
185/70-15
d=25.20
w=5.10
+2.83%
|
185/75-15
d=25.93
w=5.46
+5.80%
|
185/80-15
d=26.65
w=5.83
+8.77%
|
185/85-15
d=27.38
w=6.19
+11.74%
|
195 |
195/25-15
d=18.84
w=1.92
-23.12%
|
195/30-15
d=19.61
w=2.30
-19.99%
|
195/35-15
d=20.37
w=2.69
-16.85%
|
195/40-15
d=21.14
w=3.07
-13.72%
|
195/45-15
d=21.91
w=3.45
-10.59%
|
195/50-15
d=22.68
w=3.84
-7.46%
|
195/55-15
d=23.44
w=4.22
-4.32%
|
195/60-15
d=24.21
w=4.61
-1.19%
|
195/65-15
d=24.98
w=4.99
+1.94%
|
195/70-15
d=25.75
w=5.37
+5.08%
|
195/75-15
d=26.52
w=5.76
+8.21%
|
195/80-15
d=27.28
w=6.14
+11.34%
|
195/85-15
d=28.05
w=6.53
+14.48%
|
205 |
205/25-15
d=19.04
w=2.02
-22.32%
|
205/30-15
d=19.84
w=2.42
-19.02%
|
205/35-15
d=20.65
w=2.82
-15.73%
|
205/40-15
d=21.46
w=3.23
-12.44%
|
205/45-15
d=22.26
w=3.63
-9.14%
|
205/50-15
d=23.07
w=4.04
-5.85%
|
205/55-15
d=23.88
w=4.44
-2.55%
|
205/60-15
d=24.69
w=4.84
+0.74%
|
205/65-15
d=25.49
w=5.25
+4.03%
|
205/70-15
d=26.30
w=5.65
+7.33%
|
205/75-15
d=27.11
w=6.05
+10.62%
|
205/80-15
d=27.91
w=6.46
+13.91%
|
205/85-15
d=28.72
w=6.86
+17.21%
|
Wheel Size 16
|
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165 |
165/25-16
d=19.25
w=1.62
-21.45%
|
165/30-16
d=19.90
w=1.95
-18.80%
|
165/35-16
d=20.55
w=2.27
-16.15%
|
165/40-16
d=21.20
w=2.60
-13.50%
|
165/45-16
d=21.85
w=2.92
-10.85%
|
165/50-16
d=22.50
w=3.25
-8.19%
|
165/55-16
d=23.15
w=3.57
-5.54%
|
165/60-16
d=23.80
w=3.90
-2.89%
|
165/65-16
d=24.44
w=4.22
-0.24%
|
165/70-16
d=25.09
w=4.55
+2.41%
|
165/75-16
d=25.74
w=4.87
+5.06%
|
165/80-16
d=26.39
w=5.20
+7.71%
|
165/85-16
d=27.04
w=5.52
+10.36%
|
175 |
175/25-16
d=19.44
w=1.72
-20.65%
|
175/30-16
d=20.13
w=2.07
-17.83%
|
175/35-16
d=20.82
w=2.41
-15.02%
|
175/40-16
d=21.51
w=2.76
-12.21%
|
175/45-16
d=22.20
w=3.10
-9.40%
|
175/50-16
d=22.89
w=3.44
-6.59%
|
175/55-16
d=23.58
w=3.79
-3.78%
|
175/60-16
d=24.27
w=4.13
-0.96%
|
175/65-16
d=24.96
w=4.48
+1.85%
|
175/70-16
d=25.65
w=4.82
+4.66%
|
175/75-16
d=26.33
w=5.17
+7.47%
|
175/80-16
d=27.02
w=5.51
+10.28%
|
175/85-16
d=27.71
w=5.86
+13.09%
|
185 |
185/25-16
d=19.64
w=1.82
-19.84%
|
185/30-16
d=20.37
w=2.19
-16.87%
|
185/35-16
d=21.10
w=2.55
-13.90%
|
185/40-16
d=21.83
w=2.91
-10.93%
|
185/45-16
d=22.56
w=3.28
-7.95%
|
185/50-16
d=23.28
w=3.64
-4.98%
|
185/55-16
d=24.01
w=4.01
-2.01%
|
185/60-16
d=24.74
w=4.37
+0.96%
|
185/65-16
d=25.47
w=4.73
+3.94%
|
185/70-16
d=26.20
w=5.10
+6.91%
|
185/75-16
d=26.93
w=5.46
+9.88%
|
185/80-16
d=27.65
w=5.83
+12.85%
|
185/85-16
d=28.38
w=6.19
+15.83%
|
195 |
195/25-16
d=19.84
w=1.92
-19.04%
|
195/30-16
d=20.61
w=2.30
-15.91%
|
195/35-16
d=21.37
w=2.69
-12.77%
|
195/40-16
d=22.14
w=3.07
-9.64%
|
195/45-16
d=22.91
w=3.45
-6.51%
|
195/50-16
d=23.68
w=3.84
-3.37%
|
195/55-16
d=24.44
w=4.22
-0.24%
|
195/60-16
d=25.21
w=4.61
+2.89%
|
195/65-16
d=25.98
w=4.99
+6.03%
|
195/70-16
d=26.75
w=5.37
+9.16%
|
195/75-16
d=27.52
w=5.76
+12.29%
|
195/80-16
d=28.28
w=6.14
+15.42%
|
195/85-16
d=29.05
w=6.53
+18.56%
|
205 |
205/25-16
d=20.04
w=2.02
-18.24%
|
205/30-16
d=20.84
w=2.42
-14.94%
|
205/35-16
d=21.65
w=2.82
-11.65%
|
205/40-16
d=22.46
w=3.23
-8.35%
|
205/45-16
d=23.26
w=3.63
-5.06%
|
205/50-16
d=24.07
w=4.04
-1.77%
|
205/55-16
d=24.88
w=4.44
+1.53%
|
205/60-16
d=25.69
w=4.84
+4.82%
|
205/65-16
d=26.49
w=5.25
+8.11%
|
205/70-16
d=27.30
w=5.65
+11.41%
|
205/75-16
d=28.11
w=6.05
+14.70%
|
205/80-16
d=28.91
w=6.46
+17.99%
|
205/85-16
d=29.72
w=6.86
+21.29%
|
Wheel Size 16.5
|
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Wheel Size 17
|
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Wheel Size 18
|
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Wheel Size 19
|
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Wheel Size 20
|
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Wheel Size 21
|
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!