Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
---|---|---|---|---|---|---|
165/35-20 | +0.18 % | 50.09 | 998.23 | 24.55 | 2.27 | 57.75 |
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 |
195/30-20 | +0.42 % | 50.21 | 995.82 | 24.61 | 2.30 | 58.50 |
185/30-20 | -0.55 % | 49.73 | 1,005.46 | 24.37 | 2.19 | 55.50 |
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 |
175/35-20 | +1.30 % | 50.65 | 986.99 | 24.82 | 2.41 | 61.25 |
205/30-20 | +1.38 % | 50.69 | 986.18 | 24.84 | 2.42 | 61.50 |
175/30-20 | -1.51 % | 49.24 | 1,015.10 | 24.13 | 2.07 | 52.50 |
205/55-16 | +1.53 % | 50.76 | 984.74 | 24.88 | 4.44 | 112.75 |
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 |
205/25-20 | -1.91 % | 49.04 | 1,019.12 | 24.04 | 2.02 | 51.25 |
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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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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165 |
165/25-20
d=23.25
w=1.62
-5.13%
|
165/30-20
d=23.90
w=1.95
-2.47%
|
165/35-20
d=24.55
w=2.27
+0.18%
|
165/40-20
d=25.20
w=2.60
+2.83%
|
165/45-20
d=25.85
w=2.92
+5.48%
|
165/50-20
d=26.50
w=3.25
+8.13%
|
165/55-20
d=27.15
w=3.57
+10.78%
|
165/60-20
d=27.80
w=3.90
+13.43%
|
165/65-20
d=28.44
w=4.22
+16.08%
|
165/70-20
d=29.09
w=4.55
+18.73%
|
165/75-20
d=29.74
w=4.87
+21.38%
|
165/80-20
d=30.39
w=5.20
+24.04%
|
165/85-20
d=31.04
w=5.52
+26.69%
|
175 |
175/25-20
d=23.44
w=1.72
-4.32%
|
175/30-20
d=24.13
w=2.07
-1.51%
|
175/35-20
d=24.82
w=2.41
+1.30%
|
175/40-20
d=25.51
w=2.76
+4.11%
|
175/45-20
d=26.20
w=3.10
+6.92%
|
175/50-20
d=26.89
w=3.44
+9.74%
|
175/55-20
d=27.58
w=3.79
+12.55%
|
175/60-20
d=28.27
w=4.13
+15.36%
|
175/65-20
d=28.96
w=4.48
+18.17%
|
175/70-20
d=29.65
w=4.82
+20.98%
|
175/75-20
d=30.33
w=5.17
+23.79%
|
175/80-20
d=31.02
w=5.51
+26.61%
|
175/85-20
d=31.71
w=5.86
+29.42%
|
185 |
185/25-20
d=23.64
w=1.82
-3.52%
|
185/30-20
d=24.37
w=2.19
-0.55%
|
185/35-20
d=25.10
w=2.55
+2.43%
|
185/40-20
d=25.83
w=2.91
+5.40%
|
185/45-20
d=26.56
w=3.28
+8.37%
|
185/50-20
d=27.28
w=3.64
+11.34%
|
185/55-20
d=28.01
w=4.01
+14.32%
|
185/60-20
d=28.74
w=4.37
+17.29%
|
185/65-20
d=29.47
w=4.73
+20.26%
|
185/70-20
d=30.20
w=5.10
+23.23%
|
185/75-20
d=30.93
w=5.46
+26.21%
|
185/80-20
d=31.65
w=5.83
+29.18%
|
185/85-20
d=32.38
w=6.19
+32.15%
|
195 |
195/25-20
d=23.84
w=1.92
-2.72%
|
195/30-20
d=24.61
w=2.30
+0.42%
|
195/35-20
d=25.37
w=2.69
+3.55%
|
195/40-20
d=26.14
w=3.07
+6.68%
|
195/45-20
d=26.91
w=3.45
+9.82%
|
195/50-20
d=27.68
w=3.84
+12.95%
|
195/55-20
d=28.44
w=4.22
+16.08%
|
195/60-20
d=29.21
w=4.61
+19.22%
|
195/65-20
d=29.98
w=4.99
+22.35%
|
195/70-20
d=30.75
w=5.37
+25.48%
|
195/75-20
d=31.52
w=5.76
+28.62%
|
195/80-20
d=32.28
w=6.14
+31.75%
|
195/85-20
d=33.05
w=6.53
+34.88%
|
205 |
205/25-20
d=24.04
w=2.02
-1.91%
|
205/30-20
d=24.84
w=2.42
+1.38%
|
205/35-20
d=25.65
w=2.82
+4.68%
|
205/40-20
d=26.46
w=3.23
+7.97%
|
205/45-20
d=27.26
w=3.63
+11.26%
|
205/50-20
d=28.07
w=4.04
+14.56%
|
205/55-20
d=28.88
w=4.44
+17.85%
|
205/60-20
d=29.69
w=4.84
+21.14%
|
205/65-20
d=30.49
w=5.25
+24.44%
|
205/70-20
d=31.30
w=5.65
+27.73%
|
205/75-20
d=32.11
w=6.05
+31.03%
|
205/80-20
d=32.91
w=6.46
+34.32%
|
205/85-20
d=33.72
w=6.86
+37.61%
|
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!