| Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
|---|---|---|---|---|---|---|
| 185/60-14 | 0.00 % | 50.00 | 1,000.00 | 22.74 | 4.37 | 111.00 |
| 315/35-14 | -0.26 % | 49.87 | 1,002.60 | 22.68 | 4.34 | 110.25 |
| 245/45-14 | -0.26 % | 49.87 | 1,002.60 | 22.68 | 4.34 | 110.25 |
| 275/40-14 | -0.35 % | 49.83 | 1,003.46 | 22.66 | 4.33 | 110.00 |
| 225/50-14 | +0.52 % | 50.26 | 994.81 | 22.86 | 4.43 | 112.50 |
| 205/55-14 | +0.61 % | 50.30 | 993.94 | 22.88 | 4.44 | 112.75 |
| 145/75-14 | -0.78 % | 49.61 | 1,007.79 | 22.56 | 4.28 | 108.75 |
| 155/70-14 | -0.87 % | 49.57 | 1,008.66 | 22.54 | 4.27 | 108.50 |
| 325/35-14 | +0.95 % | 50.48 | 990.48 | 22.96 | 4.48 | 113.75 |
| 175/65-14 | +0.95 % | 50.48 | 990.48 | 22.96 | 4.48 | 113.75 |
| 285/40-14 | +1.04 % | 50.52 | 989.61 | 22.98 | 4.49 | 114.00 |
| 215/50-14 | -1.21 % | 49.39 | 1,012.12 | 22.46 | 4.23 | 107.50 |
| 255/45-14 | +1.30 % | 50.65 | 987.02 | 23.04 | 4.52 | 114.75 |
| 195/55-14 | -1.30 % | 49.35 | 1,012.98 | 22.44 | 4.22 | 107.25 |
| 165/65-14 | -1.30 % | 49.35 | 1,012.98 | 22.44 | 4.22 | 107.25 |
| 305/35-14 | -1.47 % | 49.26 | 1,014.72 | 22.41 | 4.20 | 106.75 |
| 165/70-14 | +1.56 % | 50.78 | 984.42 | 23.09 | 4.55 | 115.50 |
| 145/80-14 | +1.73 % | 50.87 | 982.69 | 23.13 | 4.57 | 116.00 |
| 265/40-14 | -1.73 % | 49.13 | 1,017.31 | 22.35 | 4.17 | 106.00 |
| 155/75-14 | +1.82 % | 50.91 | 981.82 | 23.15 | 4.58 | 116.25 |
| 235/45-14 | -1.82 % | 49.09 | 1,018.18 | 22.33 | 4.16 | 105.75 |
| 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
-25.88%
|
145/30-14
d=17.43
w=1.71
-23.37%
|
145/35-14
d=18.00
w=2.00
-20.86%
|
145/40-14
d=18.57
w=2.28
-18.35%
|
145/45-14
d=19.14
w=2.57
-15.84%
|
145/50-14
d=19.71
w=2.85
-13.33%
|
145/55-14
d=20.28
w=3.14
-10.82%
|
145/60-14
d=20.85
w=3.43
-8.31%
|
145/65-14
d=21.42
w=3.71
-5.80%
|
145/70-14
d=21.99
w=4.00
-3.29%
|
145/75-14
d=22.56
w=4.28
-0.78%
|
145/80-14
d=23.13
w=4.57
+1.73%
|
145/85-14
d=23.70
w=4.85
+4.24%
|
| 155 |
155/25-14
d=17.05
w=1.53
-25.02%
|
155/30-14
d=17.66
w=1.83
-22.33%
|
155/35-14
d=18.27
w=2.14
-19.65%
|
155/40-14
d=18.88
w=2.44
-16.97%
|
155/45-14
d=19.49
w=2.75
-14.28%
|
155/50-14
d=20.10
w=3.05
-11.60%
|
155/55-14
d=20.71
w=3.36
-8.92%
|
155/60-14
d=21.32
w=3.66
-6.23%
|
155/65-14
d=21.93
w=3.97
-3.55%
|
155/70-14
d=22.54
w=4.27
-0.87%
|
155/75-14
d=23.15
w=4.58
+1.82%
|
155/80-14
d=23.76
w=4.88
+4.50%
|
155/85-14
d=24.37
w=5.19
+7.18%
|
| 165 |
165/25-14
d=17.25
w=1.62
-24.15%
|
165/30-14
d=17.90
w=1.95
-21.30%
|
165/35-14
d=18.55
w=2.27
-18.44%
|
165/40-14
d=19.20
w=2.60
-15.58%
|
165/45-14
d=19.85
w=2.92
-12.73%
|
165/50-14
d=20.50
w=3.25
-9.87%
|
165/55-14
d=21.15
w=3.57
-7.01%
|
165/60-14
d=21.80
w=3.90
-4.16%
|
165/65-14
d=22.44
w=4.22
-1.30%
|
165/70-14
d=23.09
w=4.55
+1.56%
|
165/75-14
d=23.74
w=4.87
+4.41%
|
165/80-14
d=24.39
w=5.20
+7.27%
|
165/85-14
d=25.04
w=5.52
+10.13%
|
| 175 |
175/25-14
d=17.44
w=1.72
-23.29%
|
175/30-14
d=18.13
w=2.07
-20.26%
|
175/35-14
d=18.82
w=2.41
-17.23%
|
175/40-14
d=19.51
w=2.76
-14.20%
|
175/45-14
d=20.20
w=3.10
-11.17%
|
175/50-14
d=20.89
w=3.44
-8.14%
|
175/55-14
d=21.58
w=3.79
-5.11%
|
175/60-14
d=22.27
w=4.13
-2.08%
|
175/65-14
d=22.96
w=4.48
+0.95%
|
175/70-14
d=23.65
w=4.82
+3.98%
|
175/75-14
d=24.33
w=5.17
+7.01%
|
175/80-14
d=25.02
w=5.51
+10.04%
|
175/85-14
d=25.71
w=5.86
+13.07%
|
| 185 |
185/25-14
d=17.64
w=1.82
-22.42%
|
185/30-14
d=18.37
w=2.19
-19.22%
|
185/35-14
d=19.10
w=2.55
-16.01%
|
185/40-14
d=19.83
w=2.91
-12.81%
|
185/45-14
d=20.56
w=3.28
-9.61%
|
185/50-14
d=21.28
w=3.64
-6.41%
|
185/55-14
d=22.01
w=4.01
-3.20%
|
185/60-14
d=22.74
w=4.37
0.00%
|
185/65-14
d=23.47
w=4.73
+3.20%
|
185/70-14
d=24.20
w=5.10
+6.41%
|
185/75-14
d=24.93
w=5.46
+9.61%
|
185/80-14
d=25.65
w=5.83
+12.81%
|
185/85-14
d=26.38
w=6.19
+16.01%
|
| 195 |
195/25-14
d=17.84
w=1.92
-21.55%
|
195/30-14
d=18.61
w=2.30
-18.18%
|
195/35-14
d=19.37
w=2.69
-14.80%
|
195/40-14
d=20.14
w=3.07
-11.43%
|
195/45-14
d=20.91
w=3.45
-8.05%
|
195/50-14
d=21.68
w=3.84
-4.67%
|
195/55-14
d=22.44
w=4.22
-1.30%
|
195/60-14
d=23.21
w=4.61
+2.08%
|
195/65-14
d=23.98
w=4.99
+5.45%
|
195/70-14
d=24.75
w=5.37
+8.83%
|
195/75-14
d=25.52
w=5.76
+12.21%
|
195/80-14
d=26.28
w=6.14
+15.58%
|
195/85-14
d=27.05
w=6.53
+18.96%
|
| 205 |
205/25-14
d=18.04
w=2.02
-20.69%
|
205/30-14
d=18.84
w=2.42
-17.14%
|
205/35-14
d=19.65
w=2.82
-13.59%
|
205/40-14
d=20.46
w=3.23
-10.04%
|
205/45-14
d=21.26
w=3.63
-6.49%
|
205/50-14
d=22.07
w=4.04
-2.94%
|
205/55-14
d=22.88
w=4.44
+0.61%
|
205/60-14
d=23.69
w=4.84
+4.16%
|
205/65-14
d=24.49
w=5.25
+7.70%
|
205/70-14
d=25.30
w=5.65
+11.25%
|
205/75-14
d=26.11
w=6.05
+14.80%
|
205/80-14
d=26.91
w=6.46
+18.35%
|
205/85-14
d=27.72
w=6.86
+21.90%
|
| 215 |
215/25-14
d=18.23
w=2.12
-19.82%
|
215/30-14
d=19.08
w=2.54
-16.10%
|
215/35-14
d=19.93
w=2.96
-12.38%
|
215/40-14
d=20.77
w=3.39
-8.66%
|
215/45-14
d=21.62
w=3.81
-4.93%
|
215/50-14
d=22.46
w=4.23
-1.21%
|
215/55-14
d=23.31
w=4.66
+2.51%
|
215/60-14
d=24.16
w=5.08
+6.23%
|
215/65-14
d=25.00
w=5.50
+9.95%
|
215/70-14
d=25.85
w=5.93
+13.68%
|
215/75-14
d=26.70
w=6.35
+17.40%
|
215/80-14
d=27.54
w=6.77
+21.12%
|
215/85-14
d=28.39
w=7.19
+24.84%
|
| 225 |
225/25-14
d=18.43
w=2.21
-18.96%
|
225/30-14
d=19.31
w=2.66
-15.06%
|
225/35-14
d=20.20
w=3.10
-11.17%
|
225/40-14
d=21.09
w=3.54
-7.27%
|
225/45-14
d=21.97
w=3.99
-3.38%
|
225/50-14
d=22.86
w=4.43
+0.52%
|
225/55-14
d=23.74
w=4.87
+4.41%
|
225/60-14
d=24.63
w=5.31
+8.31%
|
225/65-14
d=25.52
w=5.76
+12.21%
|
225/70-14
d=26.40
w=6.20
+16.10%
|
225/75-14
d=27.29
w=6.64
+20.00%
|
225/80-14
d=28.17
w=7.09
+23.89%
|
225/85-14
d=29.06
w=7.53
+27.79%
|
| 235 |
235/25-14
d=18.63
w=2.31
-18.09%
|
235/30-14
d=19.55
w=2.78
-14.02%
|
235/35-14
d=20.48
w=3.24
-9.95%
|
235/40-14
d=21.40
w=3.70
-5.89%
|
235/45-14
d=22.33
w=4.16
-1.82%
|
235/50-14
d=23.25
w=4.63
+2.25%
|
235/55-14
d=24.18
w=5.09
+6.32%
|
235/60-14
d=25.10
w=5.55
+10.39%
|
235/65-14
d=26.03
w=6.01
+14.46%
|
235/70-14
d=26.95
w=6.48
+18.52%
|
235/75-14
d=27.88
w=6.94
+22.59%
|
235/80-14
d=28.80
w=7.40
+26.66%
|
235/85-14
d=29.73
w=7.86
+30.73%
|
| 245 |
245/25-14
d=18.82
w=2.41
-17.23%
|
245/30-14
d=19.79
w=2.89
-12.98%
|
245/35-14
d=20.75
w=3.38
-8.74%
|
245/40-14
d=21.72
w=3.86
-4.50%
|
245/45-14
d=22.68
w=4.34
-0.26%
|
245/50-14
d=23.65
w=4.82
+3.98%
|
245/55-14
d=24.61
w=5.31
+8.22%
|
245/60-14
d=25.57
w=5.79
+12.47%
|
245/65-14
d=26.54
w=6.27
+16.71%
|
245/70-14
d=27.50
w=6.75
+20.95%
|
245/75-14
d=28.47
w=7.23
+25.19%
|
245/80-14
d=29.43
w=7.72
+29.43%
|
245/85-14
d=30.40
w=8.20
+33.67%
|
| 255 |
255/25-14
d=19.02
w=2.51
-16.36%
|
255/30-14
d=20.02
w=3.01
-11.95%
|
255/35-14
d=21.03
w=3.51
-7.53%
|
255/40-14
d=22.03
w=4.02
-3.12%
|
255/45-14
d=23.04
w=4.52
+1.30%
|
255/50-14
d=24.04
w=5.02
+5.71%
|
255/55-14
d=25.04
w=5.52
+10.13%
|
255/60-14
d=26.05
w=6.02
+14.54%
|
255/65-14
d=27.05
w=6.53
+18.96%
|
255/70-14
d=28.06
w=7.03
+23.37%
|
255/75-14
d=29.06
w=7.53
+27.79%
|
255/80-14
d=30.06
w=8.03
+32.20%
|
255/85-14
d=31.07
w=8.53
+36.62%
|
| 265 |
265/25-14
d=19.22
w=2.61
-15.50%
|
265/30-14
d=20.26
w=3.13
-10.91%
|
265/35-14
d=21.30
w=3.65
-6.32%
|
265/40-14
d=22.35
w=4.17
-1.73%
|
265/45-14
d=23.39
w=4.69
+2.86%
|
265/50-14
d=24.43
w=5.22
+7.44%
|
265/55-14
d=25.48
w=5.74
+12.03%
|
265/60-14
d=26.52
w=6.26
+16.62%
|
265/65-14
d=27.56
w=6.78
+21.21%
|
265/70-14
d=28.61
w=7.30
+25.80%
|
265/75-14
d=29.65
w=7.82
+30.38%
|
265/80-14
d=30.69
w=8.35
+34.97%
|
265/85-14
d=31.74
w=8.87
+39.56%
|
| 275 |
275/25-14
d=19.41
w=2.71
-14.63%
|
275/30-14
d=20.50
w=3.25
-9.87%
|
275/35-14
d=21.58
w=3.79
-5.11%
|
275/40-14
d=22.66
w=4.33
-0.35%
|
275/45-14
d=23.74
w=4.87
+4.41%
|
275/50-14
d=24.83
w=5.41
+9.18%
|
275/55-14
d=25.91
w=5.95
+13.94%
|
275/60-14
d=26.99
w=6.50
+18.70%
|
275/65-14
d=28.07
w=7.04
+23.46%
|
275/70-14
d=29.16
w=7.58
+28.22%
|
275/75-14
d=30.24
w=8.12
+32.98%
|
275/80-14
d=31.32
w=8.66
+37.74%
|
275/85-14
d=32.41
w=9.20
+42.50%
|
| 285 |
285/25-14
d=19.61
w=2.81
-13.76%
|
285/30-14
d=20.73
w=3.37
-8.83%
|
285/35-14
d=21.85
w=3.93
-3.90%
|
285/40-14
d=22.98
w=4.49
+1.04%
|
285/45-14
d=24.10
w=5.05
+5.97%
|
285/50-14
d=25.22
w=5.61
+10.91%
|
285/55-14
d=26.34
w=6.17
+15.84%
|
285/60-14
d=27.46
w=6.73
+20.78%
|
285/65-14
d=28.59
w=7.29
+25.71%
|
285/70-14
d=29.71
w=7.85
+30.64%
|
285/75-14
d=30.83
w=8.42
+35.58%
|
285/80-14
d=31.95
w=8.98
+40.51%
|
285/85-14
d=33.07
w=9.54
+45.45%
|
| 295 |
295/25-14
d=19.81
w=2.90
-12.90%
|
295/30-14
d=20.97
w=3.48
-7.79%
|
295/35-14
d=22.13
w=4.06
-2.68%
|
295/40-14
d=23.29
w=4.65
+2.42%
|
295/45-14
d=24.45
w=5.23
+7.53%
|
295/50-14
d=25.61
w=5.81
+12.64%
|
295/55-14
d=26.78
w=6.39
+17.75%
|
295/60-14
d=27.94
w=6.97
+22.85%
|
295/65-14
d=29.10
w=7.55
+27.96%
|
295/70-14
d=30.26
w=8.13
+33.07%
|
295/75-14
d=31.42
w=8.71
+38.18%
|
295/80-14
d=32.58
w=9.29
+43.28%
|
295/85-14
d=33.74
w=9.87
+48.39%
|
| 305 |
305/25-14
d=20.00
w=3.00
-12.03%
|
305/30-14
d=21.20
w=3.60
-6.75%
|
305/35-14
d=22.41
w=4.20
-1.47%
|
305/40-14
d=23.61
w=4.80
+3.81%
|
305/45-14
d=24.81
w=5.40
+9.09%
|
305/50-14
d=26.01
w=6.00
+14.37%
|
305/55-14
d=27.21
w=6.60
+19.65%
|
305/60-14
d=28.41
w=7.20
+24.93%
|
305/65-14
d=29.61
w=7.81
+30.21%
|
305/70-14
d=30.81
w=8.41
+35.49%
|
305/75-14
d=32.01
w=9.01
+40.77%
|
305/80-14
d=33.21
w=9.61
+46.05%
|
305/85-14
d=34.41
w=10.21
+51.33%
|
| 315 |
315/25-14
d=20.20
w=3.10
-11.17%
|
315/30-14
d=21.44
w=3.72
-5.71%
|
315/35-14
d=22.68
w=4.34
-0.26%
|
315/40-14
d=23.92
w=4.96
+5.19%
|
315/45-14
d=25.16
w=5.58
+10.65%
|
315/50-14
d=26.40
w=6.20
+16.10%
|
315/55-14
d=27.64
w=6.82
+21.55%
|
315/60-14
d=28.88
w=7.44
+27.01%
|
315/65-14
d=30.12
w=8.06
+32.46%
|
315/70-14
d=31.36
w=8.68
+37.92%
|
315/75-14
d=32.60
w=9.30
+43.37%
|
315/80-14
d=33.84
w=9.92
+48.82%
|
315/85-14
d=35.08
w=10.54
+54.28%
|
| 325 |
325/25-14
d=20.40
w=3.20
-10.30%
|
325/30-14
d=21.68
w=3.84
-4.67%
|
325/35-14
d=22.96
w=4.48
+0.95%
|
325/40-14
d=24.24
w=5.12
+6.58%
|
325/45-14
d=25.52
w=5.76
+12.21%
|
325/50-14
d=26.80
w=6.40
+17.83%
|
325/55-14
d=28.07
w=7.04
+23.46%
|
325/60-14
d=29.35
w=7.68
+29.09%
|
325/65-14
d=30.63
w=8.32
+34.71%
|
325/70-14
d=31.91
w=8.96
+40.34%
|
325/75-14
d=33.19
w=9.60
+45.97%
|
325/80-14
d=34.47
w=10.24
+51.59%
|
325/85-14
d=35.75
w=10.88
+57.22%
|
| 335 |
335/25-14
d=20.59
w=3.30
-9.44%
|
335/30-14
d=21.91
w=3.96
-3.64%
|
335/35-14
d=23.23
w=4.62
+2.16%
|
335/40-14
d=24.55
w=5.28
+7.96%
|
335/45-14
d=25.87
w=5.94
+13.76%
|
335/50-14
d=27.19
w=6.59
+19.56%
|
335/55-14
d=28.51
w=7.25
+25.36%
|
335/60-14
d=29.83
w=7.91
+31.16%
|
335/65-14
d=31.15
w=8.57
+36.96%
|
335/70-14
d=32.46
w=9.23
+42.76%
|
335/75-14
d=33.78
w=9.89
+48.56%
|
335/80-14
d=35.10
w=10.55
+54.36%
|
335/85-14
d=36.42
w=11.21
+60.16%
|
|
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!