Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
---|---|---|---|---|---|---|
215/85-15 | 0.00 % | 50.00 | 1,000.00 | 29.39 | 7.19 | 182.75 |
305/35-21 | +0.05 % | 50.03 | 999.46 | 29.41 | 4.20 | 106.75 |
305/60-15 | +0.07 % | 50.03 | 999.33 | 29.41 | 7.20 | 183.00 |
265/40-21 | -0.15 % | 49.93 | 1,001.47 | 29.35 | 4.17 | 106.00 |
195/55-21 | +0.19 % | 50.09 | 998.12 | 29.44 | 4.22 | 107.25 |
165/65-21 | +0.19 % | 50.09 | 998.12 | 29.44 | 4.22 | 107.25 |
235/45-21 | -0.21 % | 49.89 | 1,002.14 | 29.33 | 4.16 | 105.75 |
215/50-21 | +0.25 % | 50.13 | 997.45 | 29.46 | 4.23 | 107.50 |
245/75-15 | +0.27 % | 50.13 | 997.32 | 29.47 | 7.23 | 183.75 |
335/55-15 | +0.40 % | 50.20 | 995.98 | 29.51 | 7.25 | 184.25 |
175/60-21 | -0.42 % | 49.79 | 1,004.15 | 29.27 | 4.13 | 105.00 |
155/70-21 | +0.52 % | 50.26 | 994.78 | 29.54 | 4.27 | 108.50 |
145/75-21 | +0.59 % | 50.29 | 994.11 | 29.56 | 4.28 | 108.75 |
285/65-15 | +0.67 % | 50.33 | 993.30 | 29.59 | 7.29 | 185.25 |
265/70-15 | +0.74 % | 50.37 | 992.63 | 29.61 | 7.30 | 185.50 |
225/80-15 | -0.74 % | 49.63 | 1,007.37 | 29.17 | 7.09 | 180.00 |
295/35-21 | -0.88 % | 49.56 | 1,008.84 | 29.13 | 4.06 | 103.25 |
275/40-21 | +0.92 % | 50.46 | 990.76 | 29.66 | 4.33 | 110.00 |
315/35-21 | +0.99 % | 50.50 | 990.09 | 29.68 | 4.34 | 110.25 |
245/45-21 | +0.99 % | 50.50 | 990.09 | 29.68 | 4.34 | 110.25 |
325/55-15 | -1.07 % | 49.46 | 1,010.72 | 29.07 | 7.04 | 178.75 |
275/65-15 | -1.07 % | 49.46 | 1,010.72 | 29.07 | 7.04 | 178.75 |
205/50-21 | -1.09 % | 49.46 | 1,010.85 | 29.07 | 4.04 | 102.50 |
255/70-15 | -1.14 % | 49.43 | 1,011.39 | 29.06 | 7.03 | 178.50 |
185/60-21 | +1.19 % | 50.60 | 988.08 | 29.74 | 4.37 | 111.00 |
255/40-21 | -1.22 % | 49.39 | 1,012.19 | 29.03 | 4.02 | 102.00 |
185/55-21 | -1.29 % | 49.36 | 1,012.86 | 29.01 | 4.01 | 101.75 |
145/70-21 | -1.35 % | 49.32 | 1,013.53 | 28.99 | 4.00 | 101.50 |
235/80-15 | +1.41 % | 50.70 | 985.93 | 29.80 | 7.40 | 188.00 |
225/45-21 | -1.42 % | 49.29 | 1,014.20 | 28.97 | 3.99 | 101.25 |
295/60-15 | -1.54 % | 49.23 | 1,015.41 | 28.94 | 6.97 | 177.00 |
155/65-21 | -1.55 % | 49.22 | 1,015.54 | 28.93 | 3.97 | 100.75 |
225/50-21 | +1.59 % | 50.80 | 984.06 | 29.86 | 4.43 | 112.50 |
335/30-21 | -1.62 % | 49.19 | 1,016.21 | 28.91 | 3.96 | 100.50 |
205/55-21 | +1.66 % | 50.83 | 983.39 | 29.88 | 4.44 | 112.75 |
315/60-15 | +1.67 % | 50.84 | 983.26 | 29.88 | 7.44 | 189.00 |
235/75-15 | -1.74 % | 49.13 | 1,017.41 | 28.88 | 6.94 | 176.25 |
285/35-21 | -1.82 % | 49.09 | 1,018.22 | 28.85 | 3.93 | 99.75 |
325/35-21 | +1.93 % | 50.96 | 980.71 | 29.96 | 4.48 | 113.75 |
175/65-21 | +1.93 % | 50.96 | 980.71 | 29.96 | 4.48 | 113.75 |
285/40-21 | +2.00 % | 51.00 | 980.04 | 29.98 | 4.49 | 114.00 |
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
|
|||||||||||||
145 |
145/25-15
d=17.85
w=1.43
-39.25%
|
145/30-15
d=18.43
w=1.71
-37.31%
|
145/35-15
d=19.00
w=2.00
-35.37%
|
145/40-15
d=19.57
w=2.28
-33.42%
|
145/45-15
d=20.14
w=2.57
-31.48%
|
145/50-15
d=20.71
w=2.85
-29.54%
|
145/55-15
d=21.28
w=3.14
-27.60%
|
145/60-15
d=21.85
w=3.43
-25.65%
|
145/65-15
d=22.42
w=3.71
-23.71%
|
145/70-15
d=22.99
w=4.00
-21.77%
|
145/75-15
d=23.56
w=4.28
-19.83%
|
145/80-15
d=24.13
w=4.57
-17.88%
|
145/85-15
d=24.70
w=4.85
-15.94%
|
155 |
155/25-15
d=18.05
w=1.53
-38.58%
|
155/30-15
d=18.66
w=1.83
-36.50%
|
155/35-15
d=19.27
w=2.14
-34.43%
|
155/40-15
d=19.88
w=2.44
-32.35%
|
155/45-15
d=20.49
w=2.75
-30.27%
|
155/50-15
d=21.10
w=3.05
-28.20%
|
155/55-15
d=21.71
w=3.36
-26.12%
|
155/60-15
d=22.32
w=3.66
-24.05%
|
155/65-15
d=22.93
w=3.97
-21.97%
|
155/70-15
d=23.54
w=4.27
-19.89%
|
155/75-15
d=24.15
w=4.58
-17.82%
|
155/80-15
d=24.76
w=4.88
-15.74%
|
155/85-15
d=25.37
w=5.19
-13.66%
|
165 |
165/25-15
d=18.25
w=1.62
-37.91%
|
165/30-15
d=18.90
w=1.95
-35.70%
|
165/35-15
d=19.55
w=2.27
-33.49%
|
165/40-15
d=20.20
w=2.60
-31.28%
|
165/45-15
d=20.85
w=2.92
-29.07%
|
165/50-15
d=21.50
w=3.25
-26.86%
|
165/55-15
d=22.15
w=3.57
-24.65%
|
165/60-15
d=22.80
w=3.90
-22.44%
|
165/65-15
d=23.44
w=4.22
-20.23%
|
165/70-15
d=24.09
w=4.55
-18.02%
|
165/75-15
d=24.74
w=4.87
-15.81%
|
165/80-15
d=25.39
w=5.20
-13.60%
|
165/85-15
d=26.04
w=5.52
-11.39%
|
175 |
175/25-15
d=18.44
w=1.72
-37.24%
|
175/30-15
d=19.13
w=2.07
-34.90%
|
175/35-15
d=19.82
w=2.41
-32.55%
|
175/40-15
d=20.51
w=2.76
-30.21%
|
175/45-15
d=21.20
w=3.10
-27.86%
|
175/50-15
d=21.89
w=3.44
-25.52%
|
175/55-15
d=22.58
w=3.79
-23.17%
|
175/60-15
d=23.27
w=4.13
-20.83%
|
175/65-15
d=23.96
w=4.48
-18.49%
|
175/70-15
d=24.65
w=4.82
-16.14%
|
175/75-15
d=25.33
w=5.17
-13.80%
|
175/80-15
d=26.02
w=5.51
-11.45%
|
175/85-15
d=26.71
w=5.86
-9.11%
|
185 |
185/25-15
d=18.64
w=1.82
-36.57%
|
185/30-15
d=19.37
w=2.19
-34.09%
|
185/35-15
d=20.10
w=2.55
-31.61%
|
185/40-15
d=20.83
w=2.91
-29.14%
|
185/45-15
d=21.56
w=3.28
-26.66%
|
185/50-15
d=22.28
w=3.64
-24.18%
|
185/55-15
d=23.01
w=4.01
-21.70%
|
185/60-15
d=23.74
w=4.37
-19.22%
|
185/65-15
d=24.47
w=4.73
-16.74%
|
185/70-15
d=25.20
w=5.10
-14.27%
|
185/75-15
d=25.93
w=5.46
-11.79%
|
185/80-15
d=26.65
w=5.83
-9.31%
|
185/85-15
d=27.38
w=6.19
-6.83%
|
195 |
195/25-15
d=18.84
w=1.92
-35.90%
|
195/30-15
d=19.61
w=2.30
-33.29%
|
195/35-15
d=20.37
w=2.69
-30.68%
|
195/40-15
d=21.14
w=3.07
-28.06%
|
195/45-15
d=21.91
w=3.45
-25.45%
|
195/50-15
d=22.68
w=3.84
-22.84%
|
195/55-15
d=23.44
w=4.22
-20.23%
|
195/60-15
d=24.21
w=4.61
-17.62%
|
195/65-15
d=24.98
w=4.99
-15.00%
|
195/70-15
d=25.75
w=5.37
-12.39%
|
195/75-15
d=26.52
w=5.76
-9.78%
|
195/80-15
d=27.28
w=6.14
-7.17%
|
195/85-15
d=28.05
w=6.53
-4.55%
|
205 |
205/25-15
d=19.04
w=2.02
-35.23%
|
205/30-15
d=19.84
w=2.42
-32.48%
|
205/35-15
d=20.65
w=2.82
-29.74%
|
205/40-15
d=21.46
w=3.23
-26.99%
|
205/45-15
d=22.26
w=3.63
-24.25%
|
205/50-15
d=23.07
w=4.04
-21.50%
|
205/55-15
d=23.88
w=4.44
-18.75%
|
205/60-15
d=24.69
w=4.84
-16.01%
|
205/65-15
d=25.49
w=5.25
-13.26%
|
205/70-15
d=26.30
w=5.65
-10.52%
|
205/75-15
d=27.11
w=6.05
-7.77%
|
205/80-15
d=27.91
w=6.46
-5.02%
|
205/85-15
d=28.72
w=6.86
-2.28%
|
215 |
215/25-15
d=19.23
w=2.12
-34.56%
|
215/30-15
d=20.08
w=2.54
-31.68%
|
215/35-15
d=20.93
w=2.96
-28.80%
|
215/40-15
d=21.77
w=3.39
-25.92%
|
215/45-15
d=22.62
w=3.81
-23.04%
|
215/50-15
d=23.46
w=4.23
-20.16%
|
215/55-15
d=24.31
w=4.66
-17.28%
|
215/60-15
d=25.16
w=5.08
-14.40%
|
215/65-15
d=26.00
w=5.50
-11.52%
|
215/70-15
d=26.85
w=5.93
-8.64%
|
215/75-15
d=27.70
w=6.35
-5.76%
|
215/80-15
d=28.54
w=6.77
-2.88%
|
215/85-15
d=29.39
w=7.19
0.00%
|
225 |
225/25-15
d=19.43
w=2.21
-33.89%
|
225/30-15
d=20.31
w=2.66
-30.88%
|
225/35-15
d=21.20
w=3.10
-27.86%
|
225/40-15
d=22.09
w=3.54
-24.85%
|
225/45-15
d=22.97
w=3.99
-21.84%
|
225/50-15
d=23.86
w=4.43
-18.82%
|
225/55-15
d=24.74
w=4.87
-15.81%
|
225/60-15
d=25.63
w=5.31
-12.79%
|
225/65-15
d=26.52
w=5.76
-9.78%
|
225/70-15
d=27.40
w=6.20
-6.76%
|
225/75-15
d=28.29
w=6.64
-3.75%
|
225/80-15
d=29.17
w=7.09
-0.74%
|
225/85-15
d=30.06
w=7.53
+2.28%
|
235 |
235/25-15
d=19.63
w=2.31
-33.22%
|
235/30-15
d=20.55
w=2.78
-30.07%
|
235/35-15
d=21.48
w=3.24
-26.93%
|
235/40-15
d=22.40
w=3.70
-23.78%
|
235/45-15
d=23.33
w=4.16
-20.63%
|
235/50-15
d=24.25
w=4.63
-17.48%
|
235/55-15
d=25.18
w=5.09
-14.33%
|
235/60-15
d=26.10
w=5.55
-11.19%
|
235/65-15
d=27.03
w=6.01
-8.04%
|
235/70-15
d=27.95
w=6.48
-4.89%
|
235/75-15
d=28.88
w=6.94
-1.74%
|
235/80-15
d=29.80
w=7.40
+1.41%
|
235/85-15
d=30.73
w=7.86
+4.55%
|
245 |
245/25-15
d=19.82
w=2.41
-32.55%
|
245/30-15
d=20.79
w=2.89
-29.27%
|
245/35-15
d=21.75
w=3.38
-25.99%
|
245/40-15
d=22.72
w=3.86
-22.71%
|
245/45-15
d=23.68
w=4.34
-19.42%
|
245/50-15
d=24.65
w=4.82
-16.14%
|
245/55-15
d=25.61
w=5.31
-12.86%
|
245/60-15
d=26.57
w=5.79
-9.58%
|
245/65-15
d=27.54
w=6.27
-6.30%
|
245/70-15
d=28.50
w=6.75
-3.01%
|
245/75-15
d=29.47
w=7.23
+0.27%
|
245/80-15
d=30.43
w=7.72
+3.55%
|
245/85-15
d=31.40
w=8.20
+6.83%
|
255 |
255/25-15
d=20.02
w=2.51
-31.88%
|
255/30-15
d=21.02
w=3.01
-28.47%
|
255/35-15
d=22.03
w=3.51
-25.05%
|
255/40-15
d=23.03
w=4.02
-21.63%
|
255/45-15
d=24.04
w=4.52
-18.22%
|
255/50-15
d=25.04
w=5.02
-14.80%
|
255/55-15
d=26.04
w=5.52
-11.39%
|
255/60-15
d=27.05
w=6.02
-7.97%
|
255/65-15
d=28.05
w=6.53
-4.55%
|
255/70-15
d=29.06
w=7.03
-1.14%
|
255/75-15
d=30.06
w=7.53
+2.28%
|
255/80-15
d=31.06
w=8.03
+5.69%
|
255/85-15
d=32.07
w=8.53
+9.11%
|
265 |
265/25-15
d=20.22
w=2.61
-31.21%
|
265/30-15
d=21.26
w=3.13
-27.66%
|
265/35-15
d=22.30
w=3.65
-24.11%
|
265/40-15
d=23.35
w=4.17
-20.56%
|
265/45-15
d=24.39
w=4.69
-17.01%
|
265/50-15
d=25.43
w=5.22
-13.46%
|
265/55-15
d=26.48
w=5.74
-9.91%
|
265/60-15
d=27.52
w=6.26
-6.36%
|
265/65-15
d=28.56
w=6.78
-2.81%
|
265/70-15
d=29.61
w=7.30
+0.74%
|
265/75-15
d=30.65
w=7.82
+4.29%
|
265/80-15
d=31.69
w=8.35
+7.84%
|
265/85-15
d=32.74
w=8.87
+11.39%
|
275 |
275/25-15
d=20.41
w=2.71
-30.54%
|
275/30-15
d=21.50
w=3.25
-26.86%
|
275/35-15
d=22.58
w=3.79
-23.17%
|
275/40-15
d=23.66
w=4.33
-19.49%
|
275/45-15
d=24.74
w=4.87
-15.81%
|
275/50-15
d=25.83
w=5.41
-12.12%
|
275/55-15
d=26.91
w=5.95
-8.44%
|
275/60-15
d=27.99
w=6.50
-4.76%
|
275/65-15
d=29.07
w=7.04
-1.07%
|
275/70-15
d=30.16
w=7.58
+2.61%
|
275/75-15
d=31.24
w=8.12
+6.30%
|
275/80-15
d=32.32
w=8.66
+9.98%
|
275/85-15
d=33.41
w=9.20
+13.66%
|
285 |
285/25-15
d=20.61
w=2.81
-29.87%
|
285/30-15
d=21.73
w=3.37
-26.05%
|
285/35-15
d=22.85
w=3.93
-22.24%
|
285/40-15
d=23.98
w=4.49
-18.42%
|
285/45-15
d=25.10
w=5.05
-14.60%
|
285/50-15
d=26.22
w=5.61
-10.78%
|
285/55-15
d=27.34
w=6.17
-6.97%
|
285/60-15
d=28.46
w=6.73
-3.15%
|
285/65-15
d=29.59
w=7.29
+0.67%
|
285/70-15
d=30.71
w=7.85
+4.49%
|
285/75-15
d=31.83
w=8.42
+8.31%
|
285/80-15
d=32.95
w=8.98
+12.12%
|
285/85-15
d=34.07
w=9.54
+15.94%
|
295 |
295/25-15
d=20.81
w=2.90
-29.20%
|
295/30-15
d=21.97
w=3.48
-25.25%
|
295/35-15
d=23.13
w=4.06
-21.30%
|
295/40-15
d=24.29
w=4.65
-17.35%
|
295/45-15
d=25.45
w=5.23
-13.40%
|
295/50-15
d=26.61
w=5.81
-9.44%
|
295/55-15
d=27.78
w=6.39
-5.49%
|
295/60-15
d=28.94
w=6.97
-1.54%
|
295/65-15
d=30.10
w=7.55
+2.41%
|
295/70-15
d=31.26
w=8.13
+6.36%
|
295/75-15
d=32.42
w=8.71
+10.31%
|
295/80-15
d=33.58
w=9.29
+14.27%
|
295/85-15
d=34.74
w=9.87
+18.22%
|
305 |
305/25-15
d=21.00
w=3.00
-28.53%
|
305/30-15
d=22.20
w=3.60
-24.45%
|
305/35-15
d=23.41
w=4.20
-20.36%
|
305/40-15
d=24.61
w=4.80
-16.28%
|
305/45-15
d=25.81
w=5.40
-12.19%
|
305/50-15
d=27.01
w=6.00
-8.10%
|
305/55-15
d=28.21
w=6.60
-4.02%
|
305/60-15
d=29.41
w=7.20
+0.07%
|
305/65-15
d=30.61
w=7.81
+4.15%
|
305/70-15
d=31.81
w=8.41
+8.24%
|
305/75-15
d=33.01
w=9.01
+12.32%
|
305/80-15
d=34.21
w=9.61
+16.41%
|
305/85-15
d=35.41
w=10.21
+20.50%
|
315 |
315/25-15
d=21.20
w=3.10
-27.86%
|
315/30-15
d=22.44
w=3.72
-23.64%
|
315/35-15
d=23.68
w=4.34
-19.42%
|
315/40-15
d=24.92
w=4.96
-15.20%
|
315/45-15
d=26.16
w=5.58
-10.98%
|
315/50-15
d=27.40
w=6.20
-6.76%
|
315/55-15
d=28.64
w=6.82
-2.55%
|
315/60-15
d=29.88
w=7.44
+1.67%
|
315/65-15
d=31.12
w=8.06
+5.89%
|
315/70-15
d=32.36
w=8.68
+10.11%
|
315/75-15
d=33.60
w=9.30
+14.33%
|
315/80-15
d=34.84
w=9.92
+18.55%
|
315/85-15
d=36.08
w=10.54
+22.77%
|
325 |
325/25-15
d=21.40
w=3.20
-27.19%
|
325/30-15
d=22.68
w=3.84
-22.84%
|
325/35-15
d=23.96
w=4.48
-18.49%
|
325/40-15
d=25.24
w=5.12
-14.13%
|
325/45-15
d=26.52
w=5.76
-9.78%
|
325/50-15
d=27.80
w=6.40
-5.43%
|
325/55-15
d=29.07
w=7.04
-1.07%
|
325/60-15
d=30.35
w=7.68
+3.28%
|
325/65-15
d=31.63
w=8.32
+7.64%
|
325/70-15
d=32.91
w=8.96
+11.99%
|
325/75-15
d=34.19
w=9.60
+16.34%
|
325/80-15
d=35.47
w=10.24
+20.70%
|
325/85-15
d=36.75
w=10.88
+25.05%
|
335 |
335/25-15
d=21.59
w=3.30
-26.52%
|
335/30-15
d=22.91
w=3.96
-22.04%
|
335/35-15
d=24.23
w=4.62
-17.55%
|
335/40-15
d=25.55
w=5.28
-13.06%
|
335/45-15
d=26.87
w=5.94
-8.57%
|
335/50-15
d=28.19
w=6.59
-4.09%
|
335/55-15
d=29.51
w=7.25
+0.40%
|
335/60-15
d=30.83
w=7.91
+4.89%
|
335/65-15
d=32.15
w=8.57
+9.38%
|
335/70-15
d=33.46
w=9.23
+13.86%
|
335/75-15
d=34.78
w=9.89
+18.35%
|
335/80-15
d=36.10
w=10.55
+22.84%
|
335/85-15
d=37.42
w=11.21
+27.33%
|
Wheel Size 16
|
|||||||||||||
Wheel Size 16.5
|
|||||||||||||
Wheel Size 17
|
|||||||||||||
Wheel Size 18
|
|||||||||||||
Wheel Size 19
|
|||||||||||||
Wheel Size 20
|
|||||||||||||
Wheel Size 21
|
|||||||||||||
145 |
145/25-21
d=23.85
w=1.43
-18.83%
|
145/30-21
d=24.43
w=1.71
-16.89%
|
145/35-21
d=25.00
w=2.00
-14.95%
|
145/40-21
d=25.57
w=2.28
-13.01%
|
145/45-21
d=26.14
w=2.57
-11.06%
|
145/50-21
d=26.71
w=2.85
-9.12%
|
145/55-21
d=27.28
w=3.14
-7.18%
|
145/60-21
d=27.85
w=3.43
-5.24%
|
145/65-21
d=28.42
w=3.71
-3.30%
|
145/70-21
d=28.99
w=4.00
-1.35%
|
145/75-21
d=29.56
w=4.28
+0.59%
|
145/80-21
d=30.13
w=4.57
+2.53%
|
145/85-21
d=30.70
w=4.85
+4.47%
|
155 |
155/25-21
d=24.05
w=1.53
-18.16%
|
155/30-21
d=24.66
w=1.83
-16.09%
|
155/35-21
d=25.27
w=2.14
-14.01%
|
155/40-21
d=25.88
w=2.44
-11.94%
|
155/45-21
d=26.49
w=2.75
-9.86%
|
155/50-21
d=27.10
w=3.05
-7.78%
|
155/55-21
d=27.71
w=3.36
-5.71%
|
155/60-21
d=28.32
w=3.66
-3.63%
|
155/65-21
d=28.93
w=3.97
-1.55%
|
155/70-21
d=29.54
w=4.27
+0.52%
|
155/75-21
d=30.15
w=4.58
+2.60%
|
155/80-21
d=30.76
w=4.88
+4.68%
|
155/85-21
d=31.37
w=5.19
+6.75%
|
165 |
165/25-21
d=24.25
w=1.62
-17.49%
|
165/30-21
d=24.90
w=1.95
-15.28%
|
165/35-21
d=25.55
w=2.27
-13.07%
|
165/40-21
d=26.20
w=2.60
-10.86%
|
165/45-21
d=26.85
w=2.92
-8.65%
|
165/50-21
d=27.50
w=3.25
-6.44%
|
165/55-21
d=28.15
w=3.57
-4.23%
|
165/60-21
d=28.80
w=3.90
-2.02%
|
165/65-21
d=29.44
w=4.22
+0.19%
|
165/70-21
d=30.09
w=4.55
+2.40%
|
165/75-21
d=30.74
w=4.87
+4.61%
|
165/80-21
d=31.39
w=5.20
+6.82%
|
165/85-21
d=32.04
w=5.52
+9.03%
|
175 |
175/25-21
d=24.44
w=1.72
-16.83%
|
175/30-21
d=25.13
w=2.07
-14.48%
|
175/35-21
d=25.82
w=2.41
-12.14%
|
175/40-21
d=26.51
w=2.76
-9.79%
|
175/45-21
d=27.20
w=3.10
-7.45%
|
175/50-21
d=27.89
w=3.44
-5.10%
|
175/55-21
d=28.58
w=3.79
-2.76%
|
175/60-21
d=29.27
w=4.13
-0.42%
|
175/65-21
d=29.96
w=4.48
+1.93%
|
175/70-21
d=30.65
w=4.82
+4.27%
|
175/75-21
d=31.33
w=5.17
+6.62%
|
175/80-21
d=32.02
w=5.51
+8.96%
|
175/85-21
d=32.71
w=5.86
+11.31%
|
185 |
185/25-21
d=24.64
w=1.82
-16.16%
|
185/30-21
d=25.37
w=2.19
-13.68%
|
185/35-21
d=26.10
w=2.55
-11.20%
|
185/40-21
d=26.83
w=2.91
-8.72%
|
185/45-21
d=27.56
w=3.28
-6.24%
|
185/50-21
d=28.28
w=3.64
-3.76%
|
185/55-21
d=29.01
w=4.01
-1.29%
|
185/60-21
d=29.74
w=4.37
+1.19%
|
185/65-21
d=30.47
w=4.73
+3.67%
|
185/70-21
d=31.20
w=5.10
+6.15%
|
185/75-21
d=31.93
w=5.46
+8.63%
|
185/80-21
d=32.65
w=5.83
+11.11%
|
185/85-21
d=33.38
w=6.19
+13.58%
|
195 |
195/25-21
d=24.84
w=1.92
-15.49%
|
195/30-21
d=25.61
w=2.30
-12.87%
|
195/35-21
d=26.37
w=2.69
-10.26%
|
195/40-21
d=27.14
w=3.07
-7.65%
|
195/45-21
d=27.91
w=3.45
-5.04%
|
195/50-21
d=28.68
w=3.84
-2.42%
|
195/55-21
d=29.44
w=4.22
+0.19%
|
195/60-21
d=30.21
w=4.61
+2.80%
|
195/65-21
d=30.98
w=4.99
+5.41%
|
195/70-21
d=31.75
w=5.37
+8.02%
|
195/75-21
d=32.52
w=5.76
+10.64%
|
195/80-21
d=33.28
w=6.14
+13.25%
|
195/85-21
d=34.05
w=6.53
+15.86%
|
205 |
205/25-21
d=25.04
w=2.02
-14.82%
|
205/30-21
d=25.84
w=2.42
-12.07%
|
205/35-21
d=26.65
w=2.82
-9.32%
|
205/40-21
d=27.46
w=3.23
-6.58%
|
205/45-21
d=28.26
w=3.63
-3.83%
|
205/50-21
d=29.07
w=4.04
-1.09%
|
205/55-21
d=29.88
w=4.44
+1.66%
|
205/60-21
d=30.69
w=4.84
+4.41%
|
205/65-21
d=31.49
w=5.25
+7.15%
|
205/70-21
d=32.30
w=5.65
+9.90%
|
205/75-21
d=33.11
w=6.05
+12.65%
|
205/80-21
d=33.91
w=6.46
+15.39%
|
205/85-21
d=34.72
w=6.86
+18.14%
|
215 |
215/25-21
d=25.23
w=2.12
-14.15%
|
215/30-21
d=26.08
w=2.54
-11.27%
|
215/35-21
d=26.93
w=2.96
-8.39%
|
215/40-21
d=27.77
w=3.39
-5.51%
|
215/45-21
d=28.62
w=3.81
-2.63%
|
215/50-21
d=29.46
w=4.23
+0.25%
|
215/55-21
d=30.31
w=4.66
+3.13%
|
215/60-21
d=31.16
w=5.08
+6.01%
|
215/65-21
d=32.00
w=5.50
+8.89%
|
215/70-21
d=32.85
w=5.93
+11.77%
|
215/75-21
d=33.70
w=6.35
+14.66%
|
215/80-21
d=34.54
w=6.77
+17.54%
|
215/85-21
d=35.39
w=7.19
+20.42%
|
225 |
225/25-21
d=25.43
w=2.21
-13.48%
|
225/30-21
d=26.31
w=2.66
-10.46%
|
225/35-21
d=27.20
w=3.10
-7.45%
|
225/40-21
d=28.09
w=3.54
-4.43%
|
225/45-21
d=28.97
w=3.99
-1.42%
|
225/50-21
d=29.86
w=4.43
+1.59%
|
225/55-21
d=30.74
w=4.87
+4.61%
|
225/60-21
d=31.63
w=5.31
+7.62%
|
225/65-21
d=32.52
w=5.76
+10.64%
|
225/70-21
d=33.40
w=6.20
+13.65%
|
225/75-21
d=34.29
w=6.64
+16.66%
|
225/80-21
d=35.17
w=7.09
+19.68%
|
225/85-21
d=36.06
w=7.53
+22.69%
|
235 |
235/25-21
d=25.63
w=2.31
-12.81%
|
235/30-21
d=26.55
w=2.78
-9.66%
|
235/35-21
d=27.48
w=3.24
-6.51%
|
235/40-21
d=28.40
w=3.70
-3.36%
|
235/45-21
d=29.33
w=4.16
-0.21%
|
235/50-21
d=30.25
w=4.63
+2.93%
|
235/55-21
d=31.18
w=5.09
+6.08%
|
235/60-21
d=32.10
w=5.55
+9.23%
|
235/65-21
d=33.03
w=6.01
+12.38%
|
235/70-21
d=33.95
w=6.48
+15.53%
|
235/75-21
d=34.88
w=6.94
+18.67%
|
235/80-21
d=35.80
w=7.40
+21.82%
|
235/85-21
d=36.73
w=7.86
+24.97%
|
245 |
245/25-21
d=25.82
w=2.41
-12.14%
|
245/30-21
d=26.79
w=2.89
-8.85%
|
245/35-21
d=27.75
w=3.38
-5.57%
|
245/40-21
d=28.72
w=3.86
-2.29%
|
245/45-21
d=29.68
w=4.34
+0.99%
|
245/50-21
d=30.65
w=4.82
+4.27%
|
245/55-21
d=31.61
w=5.31
+7.56%
|
245/60-21
d=32.57
w=5.79
+10.84%
|
245/65-21
d=33.54
w=6.27
+14.12%
|
245/70-21
d=34.50
w=6.75
+17.40%
|
245/75-21
d=35.47
w=7.23
+20.68%
|
245/80-21
d=36.43
w=7.72
+23.97%
|
245/85-21
d=37.40
w=8.20
+27.25%
|
255 |
255/25-21
d=26.02
w=2.51
-11.47%
|
255/30-21
d=27.02
w=3.01
-8.05%
|
255/35-21
d=28.03
w=3.51
-4.63%
|
255/40-21
d=29.03
w=4.02
-1.22%
|
255/45-21
d=30.04
w=4.52
+2.20%
|
255/50-21
d=31.04
w=5.02
+5.61%
|
255/55-21
d=32.04
w=5.52
+9.03%
|
255/60-21
d=33.05
w=6.02
+12.44%
|
255/65-21
d=34.05
w=6.53
+15.86%
|
255/70-21
d=35.06
w=7.03
+19.28%
|
255/75-21
d=36.06
w=7.53
+22.69%
|
255/80-21
d=37.06
w=8.03
+26.11%
|
255/85-21
d=38.07
w=8.53
+29.52%
|
265 |
265/25-21
d=26.22
w=2.61
-10.80%
|
265/30-21
d=27.26
w=3.13
-7.25%
|
265/35-21
d=28.30
w=3.65
-3.70%
|
265/40-21
d=29.35
w=4.17
-0.15%
|
265/45-21
d=30.39
w=4.69
+3.40%
|
265/50-21
d=31.43
w=5.22
+6.95%
|
265/55-21
d=32.48
w=5.74
+10.50%
|
265/60-21
d=33.52
w=6.26
+14.05%
|
265/65-21
d=34.56
w=6.78
+17.60%
|
265/70-21
d=35.61
w=7.30
+21.15%
|
265/75-21
d=36.65
w=7.82
+24.70%
|
265/80-21
d=37.69
w=8.35
+28.25%
|
265/85-21
d=38.74
w=8.87
+31.80%
|
275 |
275/25-21
d=26.41
w=2.71
-10.13%
|
275/30-21
d=27.50
w=3.25
-6.44%
|
275/35-21
d=28.58
w=3.79
-2.76%
|
275/40-21
d=29.66
w=4.33
+0.92%
|
275/45-21
d=30.74
w=4.87
+4.61%
|
275/50-21
d=31.83
w=5.41
+8.29%
|
275/55-21
d=32.91
w=5.95
+11.98%
|
275/60-21
d=33.99
w=6.50
+15.66%
|
275/65-21
d=35.07
w=7.04
+19.34%
|
275/70-21
d=36.16
w=7.58
+23.03%
|
275/75-21
d=37.24
w=8.12
+26.71%
|
275/80-21
d=38.32
w=8.66
+30.40%
|
275/85-21
d=39.41
w=9.20
+34.08%
|
285 |
285/25-21
d=26.61
w=2.81
-9.46%
|
285/30-21
d=27.73
w=3.37
-5.64%
|
285/35-21
d=28.85
w=3.93
-1.82%
|
285/40-21
d=29.98
w=4.49
+2.00%
|
285/45-21
d=31.10
w=5.05
+5.81%
|
285/50-21
d=32.22
w=5.61
+9.63%
|
285/55-21
d=33.34
w=6.17
+13.45%
|
285/60-21
d=34.46
w=6.73
+17.27%
|
285/65-21
d=35.59
w=7.29
+21.09%
|
285/70-21
d=36.71
w=7.85
+24.90%
|
285/75-21
d=37.83
w=8.42
+28.72%
|
285/80-21
d=38.95
w=8.98
+32.54%
|
285/85-21
d=40.07
w=9.54
+36.36%
|
295 |
295/25-21
d=26.81
w=2.90
-8.79%
|
295/30-21
d=27.97
w=3.48
-4.84%
|
295/35-21
d=29.13
w=4.06
-0.88%
|
295/40-21
d=30.29
w=4.65
+3.07%
|
295/45-21
d=31.45
w=5.23
+7.02%
|
295/50-21
d=32.61
w=5.81
+10.97%
|
295/55-21
d=33.78
w=6.39
+14.92%
|
295/60-21
d=34.94
w=6.97
+18.87%
|
295/65-21
d=36.10
w=7.55
+22.83%
|
295/70-21
d=37.26
w=8.13
+26.78%
|
295/75-21
d=38.42
w=8.71
+30.73%
|
295/80-21
d=39.58
w=9.29
+34.68%
|
295/85-21
d=40.74
w=9.87
+38.63%
|
305 |
305/25-21
d=27.00
w=3.00
-8.12%
|
305/30-21
d=28.20
w=3.60
-4.03%
|
305/35-21
d=29.41
w=4.20
+0.05%
|
305/40-21
d=30.61
w=4.80
+4.14%
|
305/45-21
d=31.81
w=5.40
+8.23%
|
305/50-21
d=33.01
w=6.00
+12.31%
|
305/55-21
d=34.21
w=6.60
+16.40%
|
305/60-21
d=35.41
w=7.20
+20.48%
|
305/65-21
d=36.61
w=7.81
+24.57%
|
305/70-21
d=37.81
w=8.41
+28.65%
|
305/75-21
d=39.01
w=9.01
+32.74%
|
305/80-21
d=40.21
w=9.61
+36.83%
|
305/85-21
d=41.41
w=10.21
+40.91%
|
315 |
315/25-21
d=27.20
w=3.10
-7.45%
|
315/30-21
d=28.44
w=3.72
-3.23%
|
315/35-21
d=29.68
w=4.34
+0.99%
|
315/40-21
d=30.92
w=4.96
+5.21%
|
315/45-21
d=32.16
w=5.58
+9.43%
|
315/50-21
d=33.40
w=6.20
+13.65%
|
315/55-21
d=34.64
w=6.82
+17.87%
|
315/60-21
d=35.88
w=7.44
+22.09%
|
315/65-21
d=37.12
w=8.06
+26.31%
|
315/70-21
d=38.36
w=8.68
+30.53%
|
315/75-21
d=39.60
w=9.30
+34.75%
|
315/80-21
d=40.84
w=9.92
+38.97%
|
315/85-21
d=42.08
w=10.54
+43.19%
|
325 |
325/25-21
d=27.40
w=3.20
-6.78%
|
325/30-21
d=28.68
w=3.84
-2.42%
|
325/35-21
d=29.96
w=4.48
+1.93%
|
325/40-21
d=31.24
w=5.12
+6.28%
|
325/45-21
d=32.52
w=5.76
+10.64%
|
325/50-21
d=33.80
w=6.40
+14.99%
|
325/55-21
d=35.07
w=7.04
+19.34%
|
325/60-21
d=36.35
w=7.68
+23.70%
|
325/65-21
d=37.63
w=8.32
+28.05%
|
325/70-21
d=38.91
w=8.96
+32.40%
|
325/75-21
d=40.19
w=9.60
+36.76%
|
325/80-21
d=41.47
w=10.24
+41.11%
|
325/85-21
d=42.75
w=10.88
+45.47%
|
335 |
335/25-21
d=27.59
w=3.30
-6.11%
|
335/30-21
d=28.91
w=3.96
-1.62%
|
335/35-21
d=30.23
w=4.62
+2.87%
|
335/40-21
d=31.55
w=5.28
+7.35%
|
335/45-21
d=32.87
w=5.94
+11.84%
|
335/50-21
d=34.19
w=6.59
+16.33%
|
335/55-21
d=35.51
w=7.25
+20.82%
|
335/60-21
d=36.83
w=7.91
+25.30%
|
335/65-21
d=38.15
w=8.57
+29.79%
|
335/70-21
d=39.46
w=9.23
+34.28%
|
335/75-21
d=40.78
w=9.89
+38.77%
|
335/80-21
d=42.10
w=10.55
+43.26%
|
335/85-21
d=43.42
w=11.21
+47.74%
|
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!