Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
---|---|---|---|---|---|---|
185/65-14 | 0.00 % | 50.00 | 1,000.00 | 23.47 | 4.73 | 120.25 |
205/65-13 | +0.10 % | 50.05 | 998.99 | 23.49 | 5.25 | 133.25 |
195/55-15 | -0.10 % | 49.95 | 1,001.01 | 23.44 | 4.22 | 107.25 |
185/45-17 | +0.37 % | 50.18 | 996.31 | 23.56 | 3.28 | 83.25 |
185/50-16 | -0.79 % | 49.61 | 1,007.88 | 23.28 | 3.64 | 92.50 |
205/45-16 | -0.87 % | 49.56 | 1,008.72 | 23.26 | 3.63 | 92.25 |
195/50-16 | +0.89 % | 50.44 | 991.11 | 23.68 | 3.84 | 97.50 |
205/60-14 | +0.92 % | 50.46 | 990.77 | 23.69 | 4.84 | 123.00 |
195/60-14 | -1.09 % | 49.45 | 1,010.90 | 23.21 | 4.61 | 117.00 |
185/70-13 | -1.16 % | 49.42 | 1,011.58 | 23.20 | 5.10 | 129.50 |
185/60-15 | +1.16 % | 50.58 | 988.42 | 23.74 | 4.37 | 111.00 |
195/70-13 | +1.19 % | 50.60 | 988.09 | 23.75 | 5.37 | 136.50 |
205/50-15 | -1.69 % | 49.15 | 1,016.94 | 23.07 | 4.04 | 102.50 |
205/55-15 | +1.74 % | 50.87 | 982.55 | 23.88 | 4.44 | 112.75 |
195/45-17 | +1.88 % | 50.94 | 981.21 | 23.91 | 3.45 | 87.75 |
185/55-15 | -1.95 % | 49.03 | 1,019.46 | 23.01 | 4.01 | 101.75 |
Ratio: | 45 | 50 | 55 | 60 | 65 | 70 |
---|---|---|---|---|---|---|
Wheel Size 12
|
||||||
Wheel Size 13
|
||||||
185 |
185/45-13
d=19.56
w=3.28
-16.68%
|
185/50-13
d=20.28
w=3.64
-13.57%
|
185/55-13
d=21.01
w=4.01
-10.47%
|
185/60-13
d=21.74
w=4.37
-7.36%
|
185/65-13
d=22.47
w=4.73
-4.26%
|
185/70-13
d=23.20
w=5.10
-1.16%
|
195 |
195/45-13
d=19.91
w=3.45
-15.17%
|
195/50-13
d=20.68
w=3.84
-11.89%
|
195/55-13
d=21.44
w=4.22
-8.62%
|
195/60-13
d=22.21
w=4.61
-5.35%
|
195/65-13
d=22.98
w=4.99
-2.08%
|
195/70-13
d=23.75
w=5.37
+1.19%
|
205 |
205/45-13
d=20.26
w=3.63
-13.66%
|
205/50-13
d=21.07
w=4.04
-10.22%
|
205/55-13
d=21.88
w=4.44
-6.78%
|
205/60-13
d=22.69
w=4.84
-3.34%
|
205/65-13
d=23.49
w=5.25
+0.10%
|
205/70-13
d=24.30
w=5.65
+3.54%
|
Wheel Size 14
|
||||||
185 |
185/45-14
d=20.56
w=3.28
-12.41%
|
185/50-14
d=21.28
w=3.64
-9.31%
|
185/55-14
d=22.01
w=4.01
-6.21%
|
185/60-14
d=22.74
w=4.37
-3.10%
|
185/65-14
d=23.47
w=4.73
0.00%
|
185/70-14
d=24.20
w=5.10
+3.10%
|
195 |
195/45-14
d=20.91
w=3.45
-10.90%
|
195/50-14
d=21.68
w=3.84
-7.63%
|
195/55-14
d=22.44
w=4.22
-4.36%
|
195/60-14
d=23.21
w=4.61
-1.09%
|
195/65-14
d=23.98
w=4.99
+2.18%
|
195/70-14
d=24.75
w=5.37
+5.45%
|
205 |
205/45-14
d=21.26
w=3.63
-9.39%
|
205/50-14
d=22.07
w=4.04
-5.96%
|
205/55-14
d=22.88
w=4.44
-2.52%
|
205/60-14
d=23.69
w=4.84
+0.92%
|
205/65-14
d=24.49
w=5.25
+4.36%
|
205/70-14
d=25.30
w=5.65
+7.80%
|
Wheel Size 15
|
||||||
185 |
185/45-15
d=21.56
w=3.28
-8.15%
|
185/50-15
d=22.28
w=3.64
-5.05%
|
185/55-15
d=23.01
w=4.01
-1.95%
|
185/60-15
d=23.74
w=4.37
+1.16%
|
185/65-15
d=24.47
w=4.73
+4.26%
|
185/70-15
d=25.20
w=5.10
+7.36%
|
195 |
195/45-15
d=21.91
w=3.45
-6.64%
|
195/50-15
d=22.68
w=3.84
-3.37%
|
195/55-15
d=23.44
w=4.22
-0.10%
|
195/60-15
d=24.21
w=4.61
+3.17%
|
195/65-15
d=24.98
w=4.99
+6.44%
|
195/70-15
d=25.75
w=5.37
+9.71%
|
205 |
205/45-15
d=22.26
w=3.63
-5.13%
|
205/50-15
d=23.07
w=4.04
-1.69%
|
205/55-15
d=23.88
w=4.44
+1.74%
|
205/60-15
d=24.69
w=4.84
+5.18%
|
205/65-15
d=25.49
w=5.25
+8.62%
|
205/70-15
d=26.30
w=5.65
+12.06%
|
Wheel Size 16
|
||||||
185 |
185/45-16
d=22.56
w=3.28
-3.89%
|
185/50-16
d=23.28
w=3.64
-0.79%
|
185/55-16
d=24.01
w=4.01
+2.32%
|
185/60-16
d=24.74
w=4.37
+5.42%
|
185/65-16
d=25.47
w=4.73
+8.52%
|
185/70-16
d=26.20
w=5.10
+11.63%
|
195 |
195/45-16
d=22.91
w=3.45
-2.38%
|
195/50-16
d=23.68
w=3.84
+0.89%
|
195/55-16
d=24.44
w=4.22
+4.16%
|
195/60-16
d=25.21
w=4.61
+7.43%
|
195/65-16
d=25.98
w=4.99
+10.70%
|
195/70-16
d=26.75
w=5.37
+13.97%
|
205 |
205/45-16
d=23.26
w=3.63
-0.87%
|
205/50-16
d=24.07
w=4.04
+2.57%
|
205/55-16
d=24.88
w=4.44
+6.01%
|
205/60-16
d=25.69
w=4.84
+9.44%
|
205/65-16
d=26.49
w=5.25
+12.88%
|
205/70-16
d=27.30
w=5.65
+16.32%
|
Wheel Size 16.5
|
||||||
Wheel Size 17
|
||||||
185 |
185/45-17
d=23.56
w=3.28
+0.37%
|
185/50-17
d=24.28
w=3.64
+3.47%
|
185/55-17
d=25.01
w=4.01
+6.58%
|
185/60-17
d=25.74
w=4.37
+9.68%
|
185/65-17
d=26.47
w=4.73
+12.78%
|
185/70-17
d=27.20
w=5.10
+15.89%
|
195 |
195/45-17
d=23.91
w=3.45
+1.88%
|
195/50-17
d=24.68
w=3.84
+5.15%
|
195/55-17
d=25.44
w=4.22
+8.42%
|
195/60-17
d=26.21
w=4.61
+11.69%
|
195/65-17
d=26.98
w=4.99
+14.96%
|
195/70-17
d=27.75
w=5.37
+18.24%
|
205 |
205/45-17
d=24.26
w=3.63
+3.39%
|
205/50-17
d=25.07
w=4.04
+6.83%
|
205/55-17
d=25.88
w=4.44
+10.27%
|
205/60-17
d=26.69
w=4.84
+13.71%
|
205/65-17
d=27.49
w=5.25
+17.14%
|
205/70-17
d=28.30
w=5.65
+20.58%
|
Wheel Size 18
|
||||||
185 |
185/45-18
d=24.56
w=3.28
+4.63%
|
185/50-18
d=25.28
w=3.64
+7.73%
|
185/55-18
d=26.01
w=4.01
+10.84%
|
185/60-18
d=26.74
w=4.37
+13.94%
|
185/65-18
d=27.47
w=4.73
+17.04%
|
185/70-18
d=28.20
w=5.10
+20.15%
|
195 |
195/45-18
d=24.91
w=3.45
+6.14%
|
195/50-18
d=25.68
w=3.84
+9.41%
|
195/55-18
d=26.44
w=4.22
+12.68%
|
195/60-18
d=27.21
w=4.61
+15.95%
|
195/65-18
d=27.98
w=4.99
+19.22%
|
195/70-18
d=28.75
w=5.37
+22.50%
|
205 |
205/45-18
d=25.26
w=3.63
+7.65%
|
205/50-18
d=26.07
w=4.04
+11.09%
|
205/55-18
d=26.88
w=4.44
+14.53%
|
205/60-18
d=27.69
w=4.84
+17.97%
|
205/65-18
d=28.49
w=5.25
+21.41%
|
205/70-18
d=29.30
w=5.65
+24.84%
|
Wheel Size 19
|
||||||
Wheel Size 20
|
||||||
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!