| Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
|---|---|---|---|---|---|---|
| 205/70-14 | 0.00 % | 50.00 | 1,000.00 | 25.30 | 5.65 | 143.50 |
| 285/50-14 | -0.31 % | 49.84 | 1,003.11 | 25.22 | 5.61 | 142.50 |
| 315/45-14 | -0.54 % | 49.73 | 1,005.45 | 25.16 | 5.58 | 141.75 |
| 265/55-14 | +0.70 % | 50.35 | 993.00 | 25.48 | 5.74 | 145.75 |
| 235/60-14 | -0.78 % | 49.61 | 1,007.78 | 25.10 | 5.55 | 141.00 |
| 325/45-14 | +0.86 % | 50.43 | 991.44 | 25.52 | 5.76 | 146.25 |
| 225/65-14 | +0.86 % | 50.43 | 991.44 | 25.52 | 5.76 | 146.25 |
| 195/75-14 | +0.86 % | 50.43 | 991.44 | 25.52 | 5.76 | 146.25 |
| 255/55-14 | -1.01 % | 49.49 | 1,010.12 | 25.04 | 5.52 | 140.25 |
| 165/85-14 | -1.01 % | 49.49 | 1,010.12 | 25.04 | 5.52 | 140.25 |
| 245/60-14 | +1.09 % | 50.54 | 989.11 | 25.57 | 5.79 | 147.00 |
| 175/80-14 | -1.09 % | 49.46 | 1,010.89 | 25.02 | 5.51 | 140.00 |
| 215/65-14 | -1.17 % | 49.42 | 1,011.67 | 25.00 | 5.50 | 139.75 |
| 295/50-14 | +1.24 % | 50.62 | 987.55 | 25.61 | 5.81 | 147.50 |
| 185/80-14 | +1.40 % | 50.70 | 985.99 | 25.65 | 5.83 | 148.00 |
| 185/75-14 | -1.48 % | 49.26 | 1,014.78 | 24.93 | 5.46 | 138.75 |
| 175/85-14 | +1.63 % | 50.82 | 983.66 | 25.71 | 5.86 | 148.75 |
| 275/50-14 | -1.87 % | 49.07 | 1,018.67 | 24.83 | 5.41 | 137.50 |
| 305/45-14 | -1.95 % | 49.03 | 1,019.45 | 24.81 | 5.40 | 137.25 |
| Ratio: | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Wheel Size 12
|
|||||||||||||
|
Wheel Size 13
|
|||||||||||||
|
Wheel Size 14
|
|||||||||||||
| 145 |
145/25-14
d=16.85
w=1.43
-33.38%
|
145/30-14
d=17.43
w=1.71
-31.12%
|
145/35-14
d=18.00
w=2.00
-28.87%
|
145/40-14
d=18.57
w=2.28
-26.61%
|
145/45-14
d=19.14
w=2.57
-24.35%
|
145/50-14
d=19.71
w=2.85
-22.10%
|
145/55-14
d=20.28
w=3.14
-19.84%
|
145/60-14
d=20.85
w=3.43
-17.58%
|
145/65-14
d=21.42
w=3.71
-15.33%
|
145/70-14
d=21.99
w=4.00
-13.07%
|
145/75-14
d=22.56
w=4.28
-10.82%
|
145/80-14
d=23.13
w=4.57
-8.56%
|
145/85-14
d=23.70
w=4.85
-6.30%
|
| 155 |
155/25-14
d=17.05
w=1.53
-32.60%
|
155/30-14
d=17.66
w=1.83
-30.19%
|
155/35-14
d=18.27
w=2.14
-27.78%
|
155/40-14
d=18.88
w=2.44
-25.37%
|
155/45-14
d=19.49
w=2.75
-22.95%
|
155/50-14
d=20.10
w=3.05
-20.54%
|
155/55-14
d=20.71
w=3.36
-18.13%
|
155/60-14
d=21.32
w=3.66
-15.72%
|
155/65-14
d=21.93
w=3.97
-13.31%
|
155/70-14
d=22.54
w=4.27
-10.89%
|
155/75-14
d=23.15
w=4.58
-8.48%
|
155/80-14
d=23.76
w=4.88
-6.07%
|
155/85-14
d=24.37
w=5.19
-3.66%
|
| 165 |
165/25-14
d=17.25
w=1.62
-31.82%
|
165/30-14
d=17.90
w=1.95
-29.26%
|
165/35-14
d=18.55
w=2.27
-26.69%
|
165/40-14
d=19.20
w=2.60
-24.12%
|
165/45-14
d=19.85
w=2.92
-21.55%
|
165/50-14
d=20.50
w=3.25
-18.99%
|
165/55-14
d=21.15
w=3.57
-16.42%
|
165/60-14
d=21.80
w=3.90
-13.85%
|
165/65-14
d=22.44
w=4.22
-11.28%
|
165/70-14
d=23.09
w=4.55
-8.71%
|
165/75-14
d=23.74
w=4.87
-6.15%
|
165/80-14
d=24.39
w=5.20
-3.58%
|
165/85-14
d=25.04
w=5.52
-1.01%
|
| 175 |
175/25-14
d=17.44
w=1.72
-31.05%
|
175/30-14
d=18.13
w=2.07
-28.32%
|
175/35-14
d=18.82
w=2.41
-25.60%
|
175/40-14
d=19.51
w=2.76
-22.88%
|
175/45-14
d=20.20
w=3.10
-20.15%
|
175/50-14
d=20.89
w=3.44
-17.43%
|
175/55-14
d=21.58
w=3.79
-14.71%
|
175/60-14
d=22.27
w=4.13
-11.98%
|
175/65-14
d=22.96
w=4.48
-9.26%
|
175/70-14
d=23.65
w=4.82
-6.54%
|
175/75-14
d=24.33
w=5.17
-3.81%
|
175/80-14
d=25.02
w=5.51
-1.09%
|
175/85-14
d=25.71
w=5.86
+1.63%
|
| 185 |
185/25-14
d=17.64
w=1.82
-30.27%
|
185/30-14
d=18.37
w=2.19
-27.39%
|
185/35-14
d=19.10
w=2.55
-24.51%
|
185/40-14
d=19.83
w=2.91
-21.63%
|
185/45-14
d=20.56
w=3.28
-18.75%
|
185/50-14
d=21.28
w=3.64
-15.87%
|
185/55-14
d=22.01
w=4.01
-12.99%
|
185/60-14
d=22.74
w=4.37
-10.12%
|
185/65-14
d=23.47
w=4.73
-7.24%
|
185/70-14
d=24.20
w=5.10
-4.36%
|
185/75-14
d=24.93
w=5.46
-1.48%
|
185/80-14
d=25.65
w=5.83
+1.40%
|
185/85-14
d=26.38
w=6.19
+4.28%
|
| 195 |
195/25-14
d=17.84
w=1.92
-29.49%
|
195/30-14
d=18.61
w=2.30
-26.46%
|
195/35-14
d=19.37
w=2.69
-23.42%
|
195/40-14
d=20.14
w=3.07
-20.39%
|
195/45-14
d=20.91
w=3.45
-17.35%
|
195/50-14
d=21.68
w=3.84
-14.32%
|
195/55-14
d=22.44
w=4.22
-11.28%
|
195/60-14
d=23.21
w=4.61
-8.25%
|
195/65-14
d=23.98
w=4.99
-5.21%
|
195/70-14
d=24.75
w=5.37
-2.18%
|
195/75-14
d=25.52
w=5.76
+0.86%
|
195/80-14
d=26.28
w=6.14
+3.89%
|
195/85-14
d=27.05
w=6.53
+6.92%
|
| 205 |
205/25-14
d=18.04
w=2.02
-28.71%
|
205/30-14
d=18.84
w=2.42
-25.52%
|
205/35-14
d=19.65
w=2.82
-22.33%
|
205/40-14
d=20.46
w=3.23
-19.14%
|
205/45-14
d=21.26
w=3.63
-15.95%
|
205/50-14
d=22.07
w=4.04
-12.76%
|
205/55-14
d=22.88
w=4.44
-9.57%
|
205/60-14
d=23.69
w=4.84
-6.38%
|
205/65-14
d=24.49
w=5.25
-3.19%
|
205/70-14
d=25.30
w=5.65
0.00%
|
205/75-14
d=26.11
w=6.05
+3.19%
|
205/80-14
d=26.91
w=6.46
+6.38%
|
205/85-14
d=27.72
w=6.86
+9.57%
|
| 215 |
215/25-14
d=18.23
w=2.12
-27.93%
|
215/30-14
d=19.08
w=2.54
-24.59%
|
215/35-14
d=19.93
w=2.96
-21.24%
|
215/40-14
d=20.77
w=3.39
-17.90%
|
215/45-14
d=21.62
w=3.81
-14.55%
|
215/50-14
d=22.46
w=4.23
-11.20%
|
215/55-14
d=23.31
w=4.66
-7.86%
|
215/60-14
d=24.16
w=5.08
-4.51%
|
215/65-14
d=25.00
w=5.50
-1.17%
|
215/70-14
d=25.85
w=5.93
+2.18%
|
215/75-14
d=26.70
w=6.35
+5.52%
|
215/80-14
d=27.54
w=6.77
+8.87%
|
215/85-14
d=28.39
w=7.19
+12.22%
|
| 225 |
225/25-14
d=18.43
w=2.21
-27.16%
|
225/30-14
d=19.31
w=2.66
-23.65%
|
225/35-14
d=20.20
w=3.10
-20.15%
|
225/40-14
d=21.09
w=3.54
-16.65%
|
225/45-14
d=21.97
w=3.99
-13.15%
|
225/50-14
d=22.86
w=4.43
-9.65%
|
225/55-14
d=23.74
w=4.87
-6.15%
|
225/60-14
d=24.63
w=5.31
-2.65%
|
225/65-14
d=25.52
w=5.76
+0.86%
|
225/70-14
d=26.40
w=6.20
+4.36%
|
225/75-14
d=27.29
w=6.64
+7.86%
|
225/80-14
d=28.17
w=7.09
+11.36%
|
225/85-14
d=29.06
w=7.53
+14.86%
|
| 235 |
235/25-14
d=18.63
w=2.31
-26.38%
|
235/30-14
d=19.55
w=2.78
-22.72%
|
235/35-14
d=20.48
w=3.24
-19.06%
|
235/40-14
d=21.40
w=3.70
-15.41%
|
235/45-14
d=22.33
w=4.16
-11.75%
|
235/50-14
d=23.25
w=4.63
-8.09%
|
235/55-14
d=24.18
w=5.09
-4.44%
|
235/60-14
d=25.10
w=5.55
-0.78%
|
235/65-14
d=26.03
w=6.01
+2.88%
|
235/70-14
d=26.95
w=6.48
+6.54%
|
235/75-14
d=27.88
w=6.94
+10.19%
|
235/80-14
d=28.80
w=7.40
+13.85%
|
235/85-14
d=29.73
w=7.86
+17.51%
|
| 245 |
245/25-14
d=18.82
w=2.41
-25.60%
|
245/30-14
d=19.79
w=2.89
-21.79%
|
245/35-14
d=20.75
w=3.38
-17.97%
|
245/40-14
d=21.72
w=3.86
-14.16%
|
245/45-14
d=22.68
w=4.34
-10.35%
|
245/50-14
d=23.65
w=4.82
-6.54%
|
245/55-14
d=24.61
w=5.31
-2.72%
|
245/60-14
d=25.57
w=5.79
+1.09%
|
245/65-14
d=26.54
w=6.27
+4.90%
|
245/70-14
d=27.50
w=6.75
+8.71%
|
245/75-14
d=28.47
w=7.23
+12.53%
|
245/80-14
d=29.43
w=7.72
+16.34%
|
245/85-14
d=30.40
w=8.20
+20.15%
|
| 255 |
255/25-14
d=19.02
w=2.51
-24.82%
|
255/30-14
d=20.02
w=3.01
-20.85%
|
255/35-14
d=21.03
w=3.51
-16.88%
|
255/40-14
d=22.03
w=4.02
-12.92%
|
255/45-14
d=23.04
w=4.52
-8.95%
|
255/50-14
d=24.04
w=5.02
-4.98%
|
255/55-14
d=25.04
w=5.52
-1.01%
|
255/60-14
d=26.05
w=6.02
+2.96%
|
255/65-14
d=27.05
w=6.53
+6.92%
|
255/70-14
d=28.06
w=7.03
+10.89%
|
255/75-14
d=29.06
w=7.53
+14.86%
|
255/80-14
d=30.06
w=8.03
+18.83%
|
255/85-14
d=31.07
w=8.53
+22.80%
|
| 265 |
265/25-14
d=19.22
w=2.61
-24.04%
|
265/30-14
d=20.26
w=3.13
-19.92%
|
265/35-14
d=21.30
w=3.65
-15.80%
|
265/40-14
d=22.35
w=4.17
-11.67%
|
265/45-14
d=23.39
w=4.69
-7.55%
|
265/50-14
d=24.43
w=5.22
-3.42%
|
265/55-14
d=25.48
w=5.74
+0.70%
|
265/60-14
d=26.52
w=6.26
+4.82%
|
265/65-14
d=27.56
w=6.78
+8.95%
|
265/70-14
d=28.61
w=7.30
+13.07%
|
265/75-14
d=29.65
w=7.82
+17.20%
|
265/80-14
d=30.69
w=8.35
+21.32%
|
265/85-14
d=31.74
w=8.87
+25.44%
|
| 275 |
275/25-14
d=19.41
w=2.71
-23.26%
|
275/30-14
d=20.50
w=3.25
-18.99%
|
275/35-14
d=21.58
w=3.79
-14.71%
|
275/40-14
d=22.66
w=4.33
-10.43%
|
275/45-14
d=23.74
w=4.87
-6.15%
|
275/50-14
d=24.83
w=5.41
-1.87%
|
275/55-14
d=25.91
w=5.95
+2.41%
|
275/60-14
d=26.99
w=6.50
+6.69%
|
275/65-14
d=28.07
w=7.04
+10.97%
|
275/70-14
d=29.16
w=7.58
+15.25%
|
275/75-14
d=30.24
w=8.12
+19.53%
|
275/80-14
d=31.32
w=8.66
+23.81%
|
275/85-14
d=32.41
w=9.20
+28.09%
|
| 285 |
285/25-14
d=19.61
w=2.81
-22.49%
|
285/30-14
d=20.73
w=3.37
-18.05%
|
285/35-14
d=21.85
w=3.93
-13.62%
|
285/40-14
d=22.98
w=4.49
-9.18%
|
285/45-14
d=24.10
w=5.05
-4.75%
|
285/50-14
d=25.22
w=5.61
-0.31%
|
285/55-14
d=26.34
w=6.17
+4.12%
|
285/60-14
d=27.46
w=6.73
+8.56%
|
285/65-14
d=28.59
w=7.29
+12.99%
|
285/70-14
d=29.71
w=7.85
+17.43%
|
285/75-14
d=30.83
w=8.42
+21.86%
|
285/80-14
d=31.95
w=8.98
+26.30%
|
285/85-14
d=33.07
w=9.54
+30.73%
|
| 295 |
295/25-14
d=19.81
w=2.90
-21.71%
|
295/30-14
d=20.97
w=3.48
-17.12%
|
295/35-14
d=22.13
w=4.06
-12.53%
|
295/40-14
d=23.29
w=4.65
-7.94%
|
295/45-14
d=24.45
w=5.23
-3.35%
|
295/50-14
d=25.61
w=5.81
+1.24%
|
295/55-14
d=26.78
w=6.39
+5.84%
|
295/60-14
d=27.94
w=6.97
+10.43%
|
295/65-14
d=29.10
w=7.55
+15.02%
|
295/70-14
d=30.26
w=8.13
+19.61%
|
295/75-14
d=31.42
w=8.71
+24.20%
|
295/80-14
d=32.58
w=9.29
+28.79%
|
295/85-14
d=33.74
w=9.87
+33.38%
|
| 305 |
305/25-14
d=20.00
w=3.00
-20.93%
|
305/30-14
d=21.20
w=3.60
-16.18%
|
305/35-14
d=22.41
w=4.20
-11.44%
|
305/40-14
d=23.61
w=4.80
-6.69%
|
305/45-14
d=24.81
w=5.40
-1.95%
|
305/50-14
d=26.01
w=6.00
+2.80%
|
305/55-14
d=27.21
w=6.60
+7.55%
|
305/60-14
d=28.41
w=7.20
+12.29%
|
305/65-14
d=29.61
w=7.81
+17.04%
|
305/70-14
d=30.81
w=8.41
+21.79%
|
305/75-14
d=32.01
w=9.01
+26.53%
|
305/80-14
d=33.21
w=9.61
+31.28%
|
305/85-14
d=34.41
w=10.21
+36.03%
|
| 315 |
315/25-14
d=20.20
w=3.10
-20.15%
|
315/30-14
d=21.44
w=3.72
-15.25%
|
315/35-14
d=22.68
w=4.34
-10.35%
|
315/40-14
d=23.92
w=4.96
-5.45%
|
315/45-14
d=25.16
w=5.58
-0.54%
|
315/50-14
d=26.40
w=6.20
+4.36%
|
315/55-14
d=27.64
w=6.82
+9.26%
|
315/60-14
d=28.88
w=7.44
+14.16%
|
315/65-14
d=30.12
w=8.06
+19.06%
|
315/70-14
d=31.36
w=8.68
+23.97%
|
315/75-14
d=32.60
w=9.30
+28.87%
|
315/80-14
d=33.84
w=9.92
+33.77%
|
315/85-14
d=35.08
w=10.54
+38.67%
|
| 325 |
325/25-14
d=20.40
w=3.20
-19.37%
|
325/30-14
d=21.68
w=3.84
-14.32%
|
325/35-14
d=22.96
w=4.48
-9.26%
|
325/40-14
d=24.24
w=5.12
-4.20%
|
325/45-14
d=25.52
w=5.76
+0.86%
|
325/50-14
d=26.80
w=6.40
+5.91%
|
325/55-14
d=28.07
w=7.04
+10.97%
|
325/60-14
d=29.35
w=7.68
+16.03%
|
325/65-14
d=30.63
w=8.32
+21.09%
|
325/70-14
d=31.91
w=8.96
+26.14%
|
325/75-14
d=33.19
w=9.60
+31.20%
|
325/80-14
d=34.47
w=10.24
+36.26%
|
325/85-14
d=35.75
w=10.88
+41.32%
|
| 335 |
335/25-14
d=20.59
w=3.30
-18.60%
|
335/30-14
d=21.91
w=3.96
-13.38%
|
335/35-14
d=23.23
w=4.62
-8.17%
|
335/40-14
d=24.55
w=5.28
-2.96%
|
335/45-14
d=25.87
w=5.94
+2.26%
|
335/50-14
d=27.19
w=6.59
+7.47%
|
335/55-14
d=28.51
w=7.25
+12.68%
|
335/60-14
d=29.83
w=7.91
+17.90%
|
335/65-14
d=31.15
w=8.57
+23.11%
|
335/70-14
d=32.46
w=9.23
+28.32%
|
335/75-14
d=33.78
w=9.89
+33.54%
|
335/80-14
d=35.10
w=10.55
+38.75%
|
335/85-14
d=36.42
w=11.21
+43.96%
|
|
Wheel Size 15
|
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Wheel Size 16
|
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|
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
|
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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!