| Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
|---|---|---|---|---|---|---|
| 215/45-18 | 0.00 % | 50.00 | 1,000.00 | 25.62 | 3.81 | 96.75 |
| 285/25-20 | -0.03 % | 49.98 | 1,000.31 | 25.61 | 2.81 | 71.25 |
| 205/35-20 | +0.12 % | 50.06 | 998.77 | 25.65 | 2.82 | 71.75 |
| 275/35-18 | -0.15 % | 49.92 | 1,001.54 | 25.58 | 3.79 | 96.25 |
| 175/55-18 | -0.15 % | 49.92 | 1,001.54 | 25.58 | 3.79 | 96.25 |
| 325/30-18 | +0.23 % | 50.12 | 997.69 | 25.68 | 3.84 | 97.50 |
| 195/50-18 | +0.23 % | 50.12 | 997.69 | 25.68 | 3.84 | 97.50 |
| 235/30-20 | -0.26 % | 49.87 | 1,002.61 | 25.55 | 2.78 | 70.50 |
| 145/50-20 | +0.35 % | 50.18 | 996.47 | 25.71 | 2.85 | 72.50 |
| 245/40-18 | +0.38 % | 50.19 | 996.16 | 25.72 | 3.86 | 98.00 |
| 175/40-20 | -0.41 % | 49.79 | 1,004.15 | 25.51 | 2.76 | 70.00 |
| 155/45-20 | -0.49 % | 49.75 | 1,004.92 | 25.49 | 2.75 | 69.75 |
| 245/30-20 | +0.66 % | 50.33 | 993.39 | 25.79 | 2.89 | 73.50 |
| 165/60-18 | +0.69 % | 50.35 | 993.08 | 25.80 | 3.90 | 99.00 |
| 315/30-18 | -0.69 % | 49.65 | 1,006.92 | 25.44 | 3.72 | 94.50 |
| 295/25-20 | +0.74 % | 50.37 | 992.62 | 25.81 | 2.90 | 73.75 |
| 145/65-18 | -0.77 % | 49.62 | 1,007.68 | 25.42 | 3.71 | 94.25 |
| 275/25-20 | -0.80 % | 49.60 | 1,007.99 | 25.41 | 2.71 | 68.75 |
| 185/40-20 | +0.81 % | 50.41 | 991.85 | 25.83 | 2.91 | 74.00 |
| 235/40-18 | -0.85 % | 49.58 | 1,008.45 | 25.40 | 3.70 | 94.00 |
| 165/45-20 | +0.89 % | 50.45 | 991.09 | 25.85 | 2.92 | 74.25 |
| 285/35-18 | +0.92 % | 50.46 | 990.78 | 25.85 | 3.93 | 99.75 |
| 195/35-20 | -0.95 % | 49.52 | 1,009.53 | 25.37 | 2.69 | 68.25 |
| 335/30-18 | +1.15 % | 50.58 | 988.47 | 25.91 | 3.96 | 100.50 |
| 155/60-18 | -1.15 % | 49.42 | 1,011.53 | 25.32 | 3.66 | 93.00 |
| 225/30-20 | -1.18 % | 49.41 | 1,011.83 | 25.31 | 2.66 | 67.50 |
| 215/35-20 | +1.20 % | 50.60 | 988.01 | 25.93 | 2.96 | 75.25 |
| 155/65-18 | +1.23 % | 50.61 | 987.71 | 25.93 | 3.97 | 100.75 |
| 265/35-18 | -1.23 % | 49.39 | 1,012.29 | 25.30 | 3.65 | 92.75 |
| 185/50-18 | -1.31 % | 49.35 | 1,013.06 | 25.28 | 3.64 | 92.50 |
| 225/45-18 | +1.38 % | 50.69 | 986.17 | 25.97 | 3.99 | 101.25 |
| 205/45-18 | -1.38 % | 49.31 | 1,013.83 | 25.26 | 3.63 | 92.25 |
| 145/70-18 | +1.46 % | 50.73 | 985.40 | 25.99 | 4.00 | 101.50 |
| 305/25-20 | +1.51 % | 50.75 | 984.94 | 26.00 | 3.00 | 76.25 |
| 185/55-18 | +1.54 % | 50.77 | 984.63 | 26.01 | 4.01 | 101.75 |
| 265/25-20 | -1.57 % | 49.22 | 1,015.68 | 25.22 | 2.61 | 66.25 |
| 255/30-20 | +1.58 % | 50.79 | 984.17 | 26.02 | 3.01 | 76.50 |
| 255/40-18 | +1.61 % | 50.81 | 983.86 | 26.03 | 4.02 | 102.00 |
| 305/30-18 | -1.61 % | 49.19 | 1,016.14 | 25.20 | 3.60 | 91.50 |
| 165/40-20 | -1.64 % | 49.18 | 1,016.44 | 25.20 | 2.60 | 66.00 |
| 205/50-18 | +1.77 % | 50.88 | 982.33 | 26.07 | 4.04 | 102.50 |
| 165/55-18 | -1.84 % | 49.08 | 1,018.44 | 25.15 | 3.57 | 90.75 |
| 145/45-20 | -1.87 % | 49.06 | 1,018.75 | 25.14 | 2.57 | 65.25 |
| 155/50-20 | +1.89 % | 50.95 | 981.10 | 26.10 | 3.05 | 77.50 |
| 295/35-18 | +2.00 % | 51.00 | 980.02 | 26.13 | 4.06 | 103.25 |
| 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
|
|||||||||||||
|
Wheel Size 18
|
|||||||||||||
| 145 |
145/25-18
d=20.85
w=1.43
-18.60%
|
145/30-18
d=21.43
w=1.71
-16.37%
|
145/35-18
d=22.00
w=2.00
-14.14%
|
145/40-18
d=22.57
w=2.28
-11.91%
|
145/45-18
d=23.14
w=2.57
-9.68%
|
145/50-18
d=23.71
w=2.85
-7.45%
|
145/55-18
d=24.28
w=3.14
-5.23%
|
145/60-18
d=24.85
w=3.43
-3.00%
|
145/65-18
d=25.42
w=3.71
-0.77%
|
145/70-18
d=25.99
w=4.00
+1.46%
|
145/75-18
d=26.56
w=4.28
+3.69%
|
145/80-18
d=27.13
w=4.57
+5.92%
|
145/85-18
d=27.70
w=4.85
+8.15%
|
| 155 |
155/25-18
d=21.05
w=1.53
-17.83%
|
155/30-18
d=21.66
w=1.83
-15.44%
|
155/35-18
d=22.27
w=2.14
-13.06%
|
155/40-18
d=22.88
w=2.44
-10.68%
|
155/45-18
d=23.49
w=2.75
-8.30%
|
155/50-18
d=24.10
w=3.05
-5.92%
|
155/55-18
d=24.71
w=3.36
-3.53%
|
155/60-18
d=25.32
w=3.66
-1.15%
|
155/65-18
d=25.93
w=3.97
+1.23%
|
155/70-18
d=26.54
w=4.27
+3.61%
|
155/75-18
d=27.15
w=4.58
+5.99%
|
155/80-18
d=27.76
w=4.88
+8.38%
|
155/85-18
d=28.37
w=5.19
+10.76%
|
| 165 |
165/25-18
d=21.25
w=1.62
-17.06%
|
165/30-18
d=21.90
w=1.95
-14.52%
|
165/35-18
d=22.55
w=2.27
-11.99%
|
165/40-18
d=23.20
w=2.60
-9.45%
|
165/45-18
d=23.85
w=2.92
-6.92%
|
165/50-18
d=24.50
w=3.25
-4.38%
|
165/55-18
d=25.15
w=3.57
-1.84%
|
165/60-18
d=25.80
w=3.90
+0.69%
|
165/65-18
d=26.44
w=4.22
+3.23%
|
165/70-18
d=27.09
w=4.55
+5.76%
|
165/75-18
d=27.74
w=4.87
+8.30%
|
165/80-18
d=28.39
w=5.20
+10.83%
|
165/85-18
d=29.04
w=5.52
+13.37%
|
| 175 |
175/25-18
d=21.44
w=1.72
-16.29%
|
175/30-18
d=22.13
w=2.07
-13.60%
|
175/35-18
d=22.82
w=2.41
-10.91%
|
175/40-18
d=23.51
w=2.76
-8.22%
|
175/45-18
d=24.20
w=3.10
-5.53%
|
175/50-18
d=24.89
w=3.44
-2.84%
|
175/55-18
d=25.58
w=3.79
-0.15%
|
175/60-18
d=26.27
w=4.13
+2.54%
|
175/65-18
d=26.96
w=4.48
+5.23%
|
175/70-18
d=27.65
w=4.82
+7.91%
|
175/75-18
d=28.33
w=5.17
+10.60%
|
175/80-18
d=29.02
w=5.51
+13.29%
|
175/85-18
d=29.71
w=5.86
+15.98%
|
| 185 |
185/25-18
d=21.64
w=1.82
-15.52%
|
185/30-18
d=22.37
w=2.19
-12.68%
|
185/35-18
d=23.10
w=2.55
-9.84%
|
185/40-18
d=23.83
w=2.91
-6.99%
|
185/45-18
d=24.56
w=3.28
-4.15%
|
185/50-18
d=25.28
w=3.64
-1.31%
|
185/55-18
d=26.01
w=4.01
+1.54%
|
185/60-18
d=26.74
w=4.37
+4.38%
|
185/65-18
d=27.47
w=4.73
+7.22%
|
185/70-18
d=28.20
w=5.10
+10.07%
|
185/75-18
d=28.93
w=5.46
+12.91%
|
185/80-18
d=29.65
w=5.83
+15.75%
|
185/85-18
d=30.38
w=6.19
+18.60%
|
| 195 |
195/25-18
d=21.84
w=1.92
-14.75%
|
195/30-18
d=22.61
w=2.30
-11.76%
|
195/35-18
d=23.37
w=2.69
-8.76%
|
195/40-18
d=24.14
w=3.07
-5.76%
|
195/45-18
d=24.91
w=3.45
-2.77%
|
195/50-18
d=25.68
w=3.84
+0.23%
|
195/55-18
d=26.44
w=4.22
+3.23%
|
195/60-18
d=27.21
w=4.61
+6.22%
|
195/65-18
d=27.98
w=4.99
+9.22%
|
195/70-18
d=28.75
w=5.37
+12.22%
|
195/75-18
d=29.52
w=5.76
+15.21%
|
195/80-18
d=30.28
w=6.14
+18.21%
|
195/85-18
d=31.05
w=6.53
+21.21%
|
| 205 |
205/25-18
d=22.04
w=2.02
-13.98%
|
205/30-18
d=22.84
w=2.42
-10.83%
|
205/35-18
d=23.65
w=2.82
-7.68%
|
205/40-18
d=24.46
w=3.23
-4.53%
|
205/45-18
d=25.26
w=3.63
-1.38%
|
205/50-18
d=26.07
w=4.04
+1.77%
|
205/55-18
d=26.88
w=4.44
+4.92%
|
205/60-18
d=27.69
w=4.84
+8.07%
|
205/65-18
d=28.49
w=5.25
+11.22%
|
205/70-18
d=29.30
w=5.65
+14.37%
|
205/75-18
d=30.11
w=6.05
+17.52%
|
205/80-18
d=30.91
w=6.46
+20.67%
|
205/85-18
d=31.72
w=6.86
+23.82%
|
| 215 |
215/25-18
d=22.23
w=2.12
-13.22%
|
215/30-18
d=23.08
w=2.54
-9.91%
|
215/35-18
d=23.93
w=2.96
-6.61%
|
215/40-18
d=24.77
w=3.39
-3.30%
|
215/45-18
d=25.62
w=3.81
0.00%
|
215/50-18
d=26.46
w=4.23
+3.30%
|
215/55-18
d=27.31
w=4.66
+6.61%
|
215/60-18
d=28.16
w=5.08
+9.91%
|
215/65-18
d=29.00
w=5.50
+13.22%
|
215/70-18
d=29.85
w=5.93
+16.52%
|
215/75-18
d=30.70
w=6.35
+19.82%
|
215/80-18
d=31.54
w=6.77
+23.13%
|
215/85-18
d=32.39
w=7.19
+26.43%
|
| 225 |
225/25-18
d=22.43
w=2.21
-12.45%
|
225/30-18
d=23.31
w=2.66
-8.99%
|
225/35-18
d=24.20
w=3.10
-5.53%
|
225/40-18
d=25.09
w=3.54
-2.07%
|
225/45-18
d=25.97
w=3.99
+1.38%
|
225/50-18
d=26.86
w=4.43
+4.84%
|
225/55-18
d=27.74
w=4.87
+8.30%
|
225/60-18
d=28.63
w=5.31
+11.76%
|
225/65-18
d=29.52
w=5.76
+15.21%
|
225/70-18
d=30.40
w=6.20
+18.67%
|
225/75-18
d=31.29
w=6.64
+22.13%
|
225/80-18
d=32.17
w=7.09
+25.59%
|
225/85-18
d=33.06
w=7.53
+29.05%
|
| 235 |
235/25-18
d=22.63
w=2.31
-11.68%
|
235/30-18
d=23.55
w=2.78
-8.07%
|
235/35-18
d=24.48
w=3.24
-4.46%
|
235/40-18
d=25.40
w=3.70
-0.85%
|
235/45-18
d=26.33
w=4.16
+2.77%
|
235/50-18
d=27.25
w=4.63
+6.38%
|
235/55-18
d=28.18
w=5.09
+9.99%
|
235/60-18
d=29.10
w=5.55
+13.60%
|
235/65-18
d=30.03
w=6.01
+17.21%
|
235/70-18
d=30.95
w=6.48
+20.82%
|
235/75-18
d=31.88
w=6.94
+24.44%
|
235/80-18
d=32.80
w=7.40
+28.05%
|
235/85-18
d=33.73
w=7.86
+31.66%
|
| 245 |
245/25-18
d=22.82
w=2.41
-10.91%
|
245/30-18
d=23.79
w=2.89
-7.15%
|
245/35-18
d=24.75
w=3.38
-3.38%
|
245/40-18
d=25.72
w=3.86
+0.38%
|
245/45-18
d=26.68
w=4.34
+4.15%
|
245/50-18
d=27.65
w=4.82
+7.91%
|
245/55-18
d=28.61
w=5.31
+11.68%
|
245/60-18
d=29.57
w=5.79
+15.44%
|
245/65-18
d=30.54
w=6.27
+19.21%
|
245/70-18
d=31.50
w=6.75
+22.98%
|
245/75-18
d=32.47
w=7.23
+26.74%
|
245/80-18
d=33.43
w=7.72
+30.51%
|
245/85-18
d=34.40
w=8.20
+34.27%
|
| 255 |
255/25-18
d=23.02
w=2.51
-10.14%
|
255/30-18
d=24.02
w=3.01
-6.22%
|
255/35-18
d=25.03
w=3.51
-2.31%
|
255/40-18
d=26.03
w=4.02
+1.61%
|
255/45-18
d=27.04
w=4.52
+5.53%
|
255/50-18
d=28.04
w=5.02
+9.45%
|
255/55-18
d=29.04
w=5.52
+13.37%
|
255/60-18
d=30.05
w=6.02
+17.29%
|
255/65-18
d=31.05
w=6.53
+21.21%
|
255/70-18
d=32.06
w=7.03
+25.13%
|
255/75-18
d=33.06
w=7.53
+29.05%
|
255/80-18
d=34.06
w=8.03
+32.96%
|
255/85-18
d=35.07
w=8.53
+36.88%
|
| 265 |
265/25-18
d=23.22
w=2.61
-9.37%
|
265/30-18
d=24.26
w=3.13
-5.30%
|
265/35-18
d=25.30
w=3.65
-1.23%
|
265/40-18
d=26.35
w=4.17
+2.84%
|
265/45-18
d=27.39
w=4.69
+6.92%
|
265/50-18
d=28.43
w=5.22
+10.99%
|
265/55-18
d=29.48
w=5.74
+15.06%
|
265/60-18
d=30.52
w=6.26
+19.13%
|
265/65-18
d=31.56
w=6.78
+23.21%
|
265/70-18
d=32.61
w=7.30
+27.28%
|
265/75-18
d=33.65
w=7.82
+31.35%
|
265/80-18
d=34.69
w=8.35
+35.42%
|
265/85-18
d=35.74
w=8.87
+39.50%
|
| 275 |
275/25-18
d=23.41
w=2.71
-8.61%
|
275/30-18
d=24.50
w=3.25
-4.38%
|
275/35-18
d=25.58
w=3.79
-0.15%
|
275/40-18
d=26.66
w=4.33
+4.07%
|
275/45-18
d=27.74
w=4.87
+8.30%
|
275/50-18
d=28.83
w=5.41
+12.52%
|
275/55-18
d=29.91
w=5.95
+16.75%
|
275/60-18
d=30.99
w=6.50
+20.98%
|
275/65-18
d=32.07
w=7.04
+25.20%
|
275/70-18
d=33.16
w=7.58
+29.43%
|
275/75-18
d=34.24
w=8.12
+33.66%
|
275/80-18
d=35.32
w=8.66
+37.88%
|
275/85-18
d=36.41
w=9.20
+42.11%
|
| 285 |
285/25-18
d=23.61
w=2.81
-7.84%
|
285/30-18
d=24.73
w=3.37
-3.46%
|
285/35-18
d=25.85
w=3.93
+0.92%
|
285/40-18
d=26.98
w=4.49
+5.30%
|
285/45-18
d=28.10
w=5.05
+9.68%
|
285/50-18
d=29.22
w=5.61
+14.06%
|
285/55-18
d=30.34
w=6.17
+18.44%
|
285/60-18
d=31.46
w=6.73
+22.82%
|
285/65-18
d=32.59
w=7.29
+27.20%
|
285/70-18
d=33.71
w=7.85
+31.58%
|
285/75-18
d=34.83
w=8.42
+35.96%
|
285/80-18
d=35.95
w=8.98
+40.34%
|
285/85-18
d=37.07
w=9.54
+44.72%
|
| 295 |
295/25-18
d=23.81
w=2.90
-7.07%
|
295/30-18
d=24.97
w=3.48
-2.54%
|
295/35-18
d=26.13
w=4.06
+2.00%
|
295/40-18
d=27.29
w=4.65
+6.53%
|
295/45-18
d=28.45
w=5.23
+11.07%
|
295/50-18
d=29.61
w=5.81
+15.60%
|
295/55-18
d=30.78
w=6.39
+20.13%
|
295/60-18
d=31.94
w=6.97
+24.67%
|
295/65-18
d=33.10
w=7.55
+29.20%
|
295/70-18
d=34.26
w=8.13
+33.73%
|
295/75-18
d=35.42
w=8.71
+38.27%
|
295/80-18
d=36.58
w=9.29
+42.80%
|
295/85-18
d=37.74
w=9.87
+47.33%
|
| 305 |
305/25-18
d=24.00
w=3.00
-6.30%
|
305/30-18
d=25.20
w=3.60
-1.61%
|
305/35-18
d=26.41
w=4.20
+3.07%
|
305/40-18
d=27.61
w=4.80
+7.76%
|
305/45-18
d=28.81
w=5.40
+12.45%
|
305/50-18
d=30.01
w=6.00
+17.14%
|
305/55-18
d=31.21
w=6.60
+21.82%
|
305/60-18
d=32.41
w=7.20
+26.51%
|
305/65-18
d=33.61
w=7.81
+31.20%
|
305/70-18
d=34.81
w=8.41
+35.88%
|
305/75-18
d=36.01
w=9.01
+40.57%
|
305/80-18
d=37.21
w=9.61
+45.26%
|
305/85-18
d=38.41
w=10.21
+49.95%
|
| 315 |
315/25-18
d=24.20
w=3.10
-5.53%
|
315/30-18
d=25.44
w=3.72
-0.69%
|
315/35-18
d=26.68
w=4.34
+4.15%
|
315/40-18
d=27.92
w=4.96
+8.99%
|
315/45-18
d=29.16
w=5.58
+13.83%
|
315/50-18
d=30.40
w=6.20
+18.67%
|
315/55-18
d=31.64
w=6.82
+23.51%
|
315/60-18
d=32.88
w=7.44
+28.35%
|
315/65-18
d=34.12
w=8.06
+33.20%
|
315/70-18
d=35.36
w=8.68
+38.04%
|
315/75-18
d=36.60
w=9.30
+42.88%
|
315/80-18
d=37.84
w=9.92
+47.72%
|
315/85-18
d=39.08
w=10.54
+52.56%
|
| 325 |
325/25-18
d=24.40
w=3.20
-4.76%
|
325/30-18
d=25.68
w=3.84
+0.23%
|
325/35-18
d=26.96
w=4.48
+5.23%
|
325/40-18
d=28.24
w=5.12
+10.22%
|
325/45-18
d=29.52
w=5.76
+15.21%
|
325/50-18
d=30.80
w=6.40
+20.21%
|
325/55-18
d=32.07
w=7.04
+25.20%
|
325/60-18
d=33.35
w=7.68
+30.20%
|
325/65-18
d=34.63
w=8.32
+35.19%
|
325/70-18
d=35.91
w=8.96
+40.19%
|
325/75-18
d=37.19
w=9.60
+45.18%
|
325/80-18
d=38.47
w=10.24
+50.18%
|
325/85-18
d=39.75
w=10.88
+55.17%
|
| 335 |
335/25-18
d=24.59
w=3.30
-4.00%
|
335/30-18
d=25.91
w=3.96
+1.15%
|
335/35-18
d=27.23
w=4.62
+6.30%
|
335/40-18
d=28.55
w=5.28
+11.45%
|
335/45-18
d=29.87
w=5.94
+16.60%
|
335/50-18
d=31.19
w=6.59
+21.75%
|
335/55-18
d=32.51
w=7.25
+26.89%
|
335/60-18
d=33.83
w=7.91
+32.04%
|
335/65-18
d=35.15
w=8.57
+37.19%
|
335/70-18
d=36.46
w=9.23
+42.34%
|
335/75-18
d=37.78
w=9.89
+47.49%
|
335/80-18
d=39.10
w=10.55
+52.64%
|
335/85-18
d=40.42
w=11.21
+57.78%
|
|
Wheel Size 19
|
|||||||||||||
|
Wheel Size 20
|
|||||||||||||
| 145 |
145/25-20
d=22.85
w=1.43
-10.79%
|
145/30-20
d=23.43
w=1.71
-8.56%
|
145/35-20
d=24.00
w=2.00
-6.33%
|
145/40-20
d=24.57
w=2.28
-4.10%
|
145/45-20
d=25.14
w=2.57
-1.87%
|
145/50-20
d=25.71
w=2.85
+0.35%
|
145/55-20
d=26.28
w=3.14
+2.58%
|
145/60-20
d=26.85
w=3.43
+4.81%
|
145/65-20
d=27.42
w=3.71
+7.04%
|
145/70-20
d=27.99
w=4.00
+9.27%
|
145/75-20
d=28.56
w=4.28
+11.50%
|
145/80-20
d=29.13
w=4.57
+13.72%
|
145/85-20
d=29.70
w=4.85
+15.95%
|
| 155 |
155/25-20
d=23.05
w=1.53
-10.02%
|
155/30-20
d=23.66
w=1.83
-7.64%
|
155/35-20
d=24.27
w=2.14
-5.26%
|
155/40-20
d=24.88
w=2.44
-2.87%
|
155/45-20
d=25.49
w=2.75
-0.49%
|
155/50-20
d=26.10
w=3.05
+1.89%
|
155/55-20
d=26.71
w=3.36
+4.27%
|
155/60-20
d=27.32
w=3.66
+6.65%
|
155/65-20
d=27.93
w=3.97
+9.04%
|
155/70-20
d=28.54
w=4.27
+11.42%
|
155/75-20
d=29.15
w=4.58
+13.80%
|
155/80-20
d=29.76
w=4.88
+16.18%
|
155/85-20
d=30.37
w=5.19
+18.56%
|
| 165 |
165/25-20
d=23.25
w=1.62
-9.25%
|
165/30-20
d=23.90
w=1.95
-6.72%
|
165/35-20
d=24.55
w=2.27
-4.18%
|
165/40-20
d=25.20
w=2.60
-1.64%
|
165/45-20
d=25.85
w=2.92
+0.89%
|
165/50-20
d=26.50
w=3.25
+3.43%
|
165/55-20
d=27.15
w=3.57
+5.96%
|
165/60-20
d=27.80
w=3.90
+8.50%
|
165/65-20
d=28.44
w=4.22
+11.03%
|
165/70-20
d=29.09
w=4.55
+13.57%
|
165/75-20
d=29.74
w=4.87
+16.11%
|
165/80-20
d=30.39
w=5.20
+18.64%
|
165/85-20
d=31.04
w=5.52
+21.18%
|
| 175 |
175/25-20
d=23.44
w=1.72
-8.48%
|
175/30-20
d=24.13
w=2.07
-5.79%
|
175/35-20
d=24.82
w=2.41
-3.10%
|
175/40-20
d=25.51
w=2.76
-0.41%
|
175/45-20
d=26.20
w=3.10
+2.27%
|
175/50-20
d=26.89
w=3.44
+4.96%
|
175/55-20
d=27.58
w=3.79
+7.65%
|
175/60-20
d=28.27
w=4.13
+10.34%
|
175/65-20
d=28.96
w=4.48
+13.03%
|
175/70-20
d=29.65
w=4.82
+15.72%
|
175/75-20
d=30.33
w=5.17
+18.41%
|
175/80-20
d=31.02
w=5.51
+21.10%
|
175/85-20
d=31.71
w=5.86
+23.79%
|
| 185 |
185/25-20
d=23.64
w=1.82
-7.71%
|
185/30-20
d=24.37
w=2.19
-4.87%
|
185/35-20
d=25.10
w=2.55
-2.03%
|
185/40-20
d=25.83
w=2.91
+0.81%
|
185/45-20
d=26.56
w=3.28
+3.66%
|
185/50-20
d=27.28
w=3.64
+6.50%
|
185/55-20
d=28.01
w=4.01
+9.34%
|
185/60-20
d=28.74
w=4.37
+12.19%
|
185/65-20
d=29.47
w=4.73
+15.03%
|
185/70-20
d=30.20
w=5.10
+17.87%
|
185/75-20
d=30.93
w=5.46
+20.72%
|
185/80-20
d=31.65
w=5.83
+23.56%
|
185/85-20
d=32.38
w=6.19
+26.40%
|
| 195 |
195/25-20
d=23.84
w=1.92
-6.95%
|
195/30-20
d=24.61
w=2.30
-3.95%
|
195/35-20
d=25.37
w=2.69
-0.95%
|
195/40-20
d=26.14
w=3.07
+2.04%
|
195/45-20
d=26.91
w=3.45
+5.04%
|
195/50-20
d=27.68
w=3.84
+8.04%
|
195/55-20
d=28.44
w=4.22
+11.03%
|
195/60-20
d=29.21
w=4.61
+14.03%
|
195/65-20
d=29.98
w=4.99
+17.03%
|
195/70-20
d=30.75
w=5.37
+20.02%
|
195/75-20
d=31.52
w=5.76
+23.02%
|
195/80-20
d=32.28
w=6.14
+26.02%
|
195/85-20
d=33.05
w=6.53
+29.01%
|
| 205 |
205/25-20
d=24.04
w=2.02
-6.18%
|
205/30-20
d=24.84
w=2.42
-3.03%
|
205/35-20
d=25.65
w=2.82
+0.12%
|
205/40-20
d=26.46
w=3.23
+3.27%
|
205/45-20
d=27.26
w=3.63
+6.42%
|
205/50-20
d=28.07
w=4.04
+9.57%
|
205/55-20
d=28.88
w=4.44
+12.72%
|
205/60-20
d=29.69
w=4.84
+15.88%
|
205/65-20
d=30.49
w=5.25
+19.03%
|
205/70-20
d=31.30
w=5.65
+22.18%
|
205/75-20
d=32.11
w=6.05
+25.33%
|
205/80-20
d=32.91
w=6.46
+28.48%
|
205/85-20
d=33.72
w=6.86
+31.63%
|
| 215 |
215/25-20
d=24.23
w=2.12
-5.41%
|
215/30-20
d=25.08
w=2.54
-2.11%
|
215/35-20
d=25.93
w=2.96
+1.20%
|
215/40-20
d=26.77
w=3.39
+4.50%
|
215/45-20
d=27.62
w=3.81
+7.81%
|
215/50-20
d=28.46
w=4.23
+11.11%
|
215/55-20
d=29.31
w=4.66
+14.42%
|
215/60-20
d=30.16
w=5.08
+17.72%
|
215/65-20
d=31.00
w=5.50
+21.02%
|
215/70-20
d=31.85
w=5.93
+24.33%
|
215/75-20
d=32.70
w=6.35
+27.63%
|
215/80-20
d=33.54
w=6.77
+30.94%
|
215/85-20
d=34.39
w=7.19
+34.24%
|
| 225 |
225/25-20
d=24.43
w=2.21
-4.64%
|
225/30-20
d=25.31
w=2.66
-1.18%
|
225/35-20
d=26.20
w=3.10
+2.27%
|
225/40-20
d=27.09
w=3.54
+5.73%
|
225/45-20
d=27.97
w=3.99
+9.19%
|
225/50-20
d=28.86
w=4.43
+12.65%
|
225/55-20
d=29.74
w=4.87
+16.11%
|
225/60-20
d=30.63
w=5.31
+19.56%
|
225/65-20
d=31.52
w=5.76
+23.02%
|
225/70-20
d=32.40
w=6.20
+26.48%
|
225/75-20
d=33.29
w=6.64
+29.94%
|
225/80-20
d=34.17
w=7.09
+33.39%
|
225/85-20
d=35.06
w=7.53
+36.85%
|
| 235 |
235/25-20
d=24.63
w=2.31
-3.87%
|
235/30-20
d=25.55
w=2.78
-0.26%
|
235/35-20
d=26.48
w=3.24
+3.35%
|
235/40-20
d=27.40
w=3.70
+6.96%
|
235/45-20
d=28.33
w=4.16
+10.57%
|
235/50-20
d=29.25
w=4.63
+14.18%
|
235/55-20
d=30.18
w=5.09
+17.80%
|
235/60-20
d=31.10
w=5.55
+21.41%
|
235/65-20
d=32.03
w=6.01
+25.02%
|
235/70-20
d=32.95
w=6.48
+28.63%
|
235/75-20
d=33.88
w=6.94
+32.24%
|
235/80-20
d=34.80
w=7.40
+35.85%
|
235/85-20
d=35.73
w=7.86
+39.47%
|
| 245 |
245/25-20
d=24.82
w=2.41
-3.10%
|
245/30-20
d=25.79
w=2.89
+0.66%
|
245/35-20
d=26.75
w=3.38
+4.43%
|
245/40-20
d=27.72
w=3.86
+8.19%
|
245/45-20
d=28.68
w=4.34
+11.96%
|
245/50-20
d=29.65
w=4.82
+15.72%
|
245/55-20
d=30.61
w=5.31
+19.49%
|
245/60-20
d=31.57
w=5.79
+23.25%
|
245/65-20
d=32.54
w=6.27
+27.02%
|
245/70-20
d=33.50
w=6.75
+30.78%
|
245/75-20
d=34.47
w=7.23
+34.55%
|
245/80-20
d=35.43
w=7.72
+38.31%
|
245/85-20
d=36.40
w=8.20
+42.08%
|
| 255 |
255/25-20
d=25.02
w=2.51
-2.34%
|
255/30-20
d=26.02
w=3.01
+1.58%
|
255/35-20
d=27.03
w=3.51
+5.50%
|
255/40-20
d=28.03
w=4.02
+9.42%
|
255/45-20
d=29.04
w=4.52
+13.34%
|
255/50-20
d=30.04
w=5.02
+17.26%
|
255/55-20
d=31.04
w=5.52
+21.18%
|
255/60-20
d=32.05
w=6.02
+25.10%
|
255/65-20
d=33.05
w=6.53
+29.01%
|
255/70-20
d=34.06
w=7.03
+32.93%
|
255/75-20
d=35.06
w=7.53
+36.85%
|
255/80-20
d=36.06
w=8.03
+40.77%
|
255/85-20
d=37.07
w=8.53
+44.69%
|
| 265 |
265/25-20
d=25.22
w=2.61
-1.57%
|
265/30-20
d=26.26
w=3.13
+2.50%
|
265/35-20
d=27.30
w=3.65
+6.58%
|
265/40-20
d=28.35
w=4.17
+10.65%
|
265/45-20
d=29.39
w=4.69
+14.72%
|
265/50-20
d=30.43
w=5.22
+18.80%
|
265/55-20
d=31.48
w=5.74
+22.87%
|
265/60-20
d=32.52
w=6.26
+26.94%
|
265/65-20
d=33.56
w=6.78
+31.01%
|
265/70-20
d=34.61
w=7.30
+35.09%
|
265/75-20
d=35.65
w=7.82
+39.16%
|
265/80-20
d=36.69
w=8.35
+43.23%
|
265/85-20
d=37.74
w=8.87
+47.30%
|
| 275 |
275/25-20
d=25.41
w=2.71
-0.80%
|
275/30-20
d=26.50
w=3.25
+3.43%
|
275/35-20
d=27.58
w=3.79
+7.65%
|
275/40-20
d=28.66
w=4.33
+11.88%
|
275/45-20
d=29.74
w=4.87
+16.11%
|
275/50-20
d=30.83
w=5.41
+20.33%
|
275/55-20
d=31.91
w=5.95
+24.56%
|
275/60-20
d=32.99
w=6.50
+28.78%
|
275/65-20
d=34.07
w=7.04
+33.01%
|
275/70-20
d=35.16
w=7.58
+37.24%
|
275/75-20
d=36.24
w=8.12
+41.46%
|
275/80-20
d=37.32
w=8.66
+45.69%
|
275/85-20
d=38.41
w=9.20
+49.92%
|
| 285 |
285/25-20
d=25.61
w=2.81
-0.03%
|
285/30-20
d=26.73
w=3.37
+4.35%
|
285/35-20
d=27.85
w=3.93
+8.73%
|
285/40-20
d=28.98
w=4.49
+13.11%
|
285/45-20
d=30.10
w=5.05
+17.49%
|
285/50-20
d=31.22
w=5.61
+21.87%
|
285/55-20
d=32.34
w=6.17
+26.25%
|
285/60-20
d=33.46
w=6.73
+30.63%
|
285/65-20
d=34.59
w=7.29
+35.01%
|
285/70-20
d=35.71
w=7.85
+39.39%
|
285/75-20
d=36.83
w=8.42
+43.77%
|
285/80-20
d=37.95
w=8.98
+48.15%
|
285/85-20
d=39.07
w=9.54
+52.53%
|
| 295 |
295/25-20
d=25.81
w=2.90
+0.74%
|
295/30-20
d=26.97
w=3.48
+5.27%
|
295/35-20
d=28.13
w=4.06
+9.80%
|
295/40-20
d=29.29
w=4.65
+14.34%
|
295/45-20
d=30.45
w=5.23
+18.87%
|
295/50-20
d=31.61
w=5.81
+23.41%
|
295/55-20
d=32.78
w=6.39
+27.94%
|
295/60-20
d=33.94
w=6.97
+32.47%
|
295/65-20
d=35.10
w=7.55
+37.01%
|
295/70-20
d=36.26
w=8.13
+41.54%
|
295/75-20
d=37.42
w=8.71
+46.07%
|
295/80-20
d=38.58
w=9.29
+50.61%
|
295/85-20
d=39.74
w=9.87
+55.14%
|
| 305 |
305/25-20
d=26.00
w=3.00
+1.51%
|
305/30-20
d=27.20
w=3.60
+6.19%
|
305/35-20
d=28.41
w=4.20
+10.88%
|
305/40-20
d=29.61
w=4.80
+15.57%
|
305/45-20
d=30.81
w=5.40
+20.26%
|
305/50-20
d=32.01
w=6.00
+24.94%
|
305/55-20
d=33.21
w=6.60
+29.63%
|
305/60-20
d=34.41
w=7.20
+34.32%
|
305/65-20
d=35.61
w=7.81
+39.00%
|
305/70-20
d=36.81
w=8.41
+43.69%
|
305/75-20
d=38.01
w=9.01
+48.38%
|
305/80-20
d=39.21
w=9.61
+53.07%
|
305/85-20
d=40.41
w=10.21
+57.75%
|
| 315 |
315/25-20
d=26.20
w=3.10
+2.27%
|
315/30-20
d=27.44
w=3.72
+7.12%
|
315/35-20
d=28.68
w=4.34
+11.96%
|
315/40-20
d=29.92
w=4.96
+16.80%
|
315/45-20
d=31.16
w=5.58
+21.64%
|
315/50-20
d=32.40
w=6.20
+26.48%
|
315/55-20
d=33.64
w=6.82
+31.32%
|
315/60-20
d=34.88
w=7.44
+36.16%
|
315/65-20
d=36.12
w=8.06
+41.00%
|
315/70-20
d=37.36
w=8.68
+45.84%
|
315/75-20
d=38.60
w=9.30
+50.68%
|
315/80-20
d=39.84
w=9.92
+55.52%
|
315/85-20
d=41.08
w=10.54
+60.37%
|
| 325 |
325/25-20
d=26.40
w=3.20
+3.04%
|
325/30-20
d=27.68
w=3.84
+8.04%
|
325/35-20
d=28.96
w=4.48
+13.03%
|
325/40-20
d=30.24
w=5.12
+18.03%
|
325/45-20
d=31.52
w=5.76
+23.02%
|
325/50-20
d=32.80
w=6.40
+28.02%
|
325/55-20
d=34.07
w=7.04
+33.01%
|
325/60-20
d=35.35
w=7.68
+38.01%
|
325/65-20
d=36.63
w=8.32
+43.00%
|
325/70-20
d=37.91
w=8.96
+47.99%
|
325/75-20
d=39.19
w=9.60
+52.99%
|
325/80-20
d=40.47
w=10.24
+57.98%
|
325/85-20
d=41.75
w=10.88
+62.98%
|
| 335 |
335/25-20
d=26.59
w=3.30
+3.81%
|
335/30-20
d=27.91
w=3.96
+8.96%
|
335/35-20
d=29.23
w=4.62
+14.11%
|
335/40-20
d=30.55
w=5.28
+19.26%
|
335/45-20
d=31.87
w=5.94
+24.40%
|
335/50-20
d=33.19
w=6.59
+29.55%
|
335/55-20
d=34.51
w=7.25
+34.70%
|
335/60-20
d=35.83
w=7.91
+39.85%
|
335/65-20
d=37.15
w=8.57
+45.00%
|
335/70-20
d=38.46
w=9.23
+50.15%
|
335/75-20
d=39.78
w=9.89
+55.29%
|
335/80-20
d=41.10
w=10.55
+60.44%
|
335/85-20
d=42.42
w=11.21
+65.59%
|
|
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!