| Code | Difference | = 50mph | 1000miles = | Diameter | Wall,in | Wall,mm |
|---|---|---|---|---|---|---|
| 245/50-14 | 0.00 % | 50.00 | 1,000.00 | 23.65 | 4.82 | 122.50 |
| 175/70-14 | 0.00 % | 50.00 | 1,000.00 | 23.65 | 4.82 | 122.50 |
| 205/60-14 | +0.17 % | 50.08 | 998.33 | 23.69 | 4.84 | 123.00 |
| 305/40-14 | -0.17 % | 49.92 | 1,001.67 | 23.61 | 4.80 | 122.00 |
| 145/85-14 | +0.25 % | 50.12 | 997.50 | 23.70 | 4.85 | 123.25 |
| 275/45-14 | +0.42 % | 50.21 | 995.84 | 23.74 | 4.87 | 123.75 |
| 225/55-14 | +0.42 % | 50.21 | 995.84 | 23.74 | 4.87 | 123.75 |
| 165/75-14 | +0.42 % | 50.21 | 995.84 | 23.74 | 4.87 | 123.75 |
| 155/80-14 | +0.50 % | 50.25 | 995.00 | 23.76 | 4.88 | 124.00 |
| 185/65-14 | -0.75 % | 49.63 | 1,007.49 | 23.47 | 4.73 | 120.25 |
| 265/45-14 | -1.08 % | 49.46 | 1,010.82 | 23.39 | 4.69 | 119.25 |
| 315/40-14 | +1.17 % | 50.58 | 988.34 | 23.92 | 4.96 | 126.00 |
| 195/65-14 | +1.42 % | 50.71 | 985.85 | 23.98 | 4.99 | 126.75 |
| 215/55-14 | -1.42 % | 49.29 | 1,014.15 | 23.31 | 4.66 | 118.25 |
| 295/40-14 | -1.50 % | 49.25 | 1,014.99 | 23.29 | 4.65 | 118.00 |
| 255/50-14 | +1.67 % | 50.83 | 983.35 | 24.04 | 5.02 | 127.50 |
| 235/50-14 | -1.67 % | 49.17 | 1,016.65 | 23.25 | 4.63 | 117.50 |
| 335/35-14 | -1.75 % | 49.13 | 1,017.48 | 23.23 | 4.62 | 117.25 |
| 195/60-14 | -1.83 % | 49.08 | 1,018.32 | 23.21 | 4.61 | 117.00 |
| 285/45-14 | +1.91 % | 50.96 | 980.85 | 24.10 | 5.05 | 128.25 |
| 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
-28.72%
|
145/30-14
d=17.43
w=1.71
-26.31%
|
145/35-14
d=18.00
w=2.00
-23.89%
|
145/40-14
d=18.57
w=2.28
-21.48%
|
145/45-14
d=19.14
w=2.57
-19.06%
|
145/50-14
d=19.71
w=2.85
-16.65%
|
145/55-14
d=20.28
w=3.14
-14.24%
|
145/60-14
d=20.85
w=3.43
-11.82%
|
145/65-14
d=21.42
w=3.71
-9.41%
|
145/70-14
d=21.99
w=4.00
-6.99%
|
145/75-14
d=22.56
w=4.28
-4.58%
|
145/80-14
d=23.13
w=4.57
-2.16%
|
145/85-14
d=23.70
w=4.85
+0.25%
|
| 155 |
155/25-14
d=17.05
w=1.53
-27.89%
|
155/30-14
d=17.66
w=1.83
-25.31%
|
155/35-14
d=18.27
w=2.14
-22.73%
|
155/40-14
d=18.88
w=2.44
-20.15%
|
155/45-14
d=19.49
w=2.75
-17.57%
|
155/50-14
d=20.10
w=3.05
-14.99%
|
155/55-14
d=20.71
w=3.36
-12.40%
|
155/60-14
d=21.32
w=3.66
-9.82%
|
155/65-14
d=21.93
w=3.97
-7.24%
|
155/70-14
d=22.54
w=4.27
-4.66%
|
155/75-14
d=23.15
w=4.58
-2.08%
|
155/80-14
d=23.76
w=4.88
+0.50%
|
155/85-14
d=24.37
w=5.19
+3.08%
|
| 165 |
165/25-14
d=17.25
w=1.62
-27.06%
|
165/30-14
d=17.90
w=1.95
-24.31%
|
165/35-14
d=18.55
w=2.27
-21.56%
|
165/40-14
d=19.20
w=2.60
-18.81%
|
165/45-14
d=19.85
w=2.92
-16.07%
|
165/50-14
d=20.50
w=3.25
-13.32%
|
165/55-14
d=21.15
w=3.57
-10.57%
|
165/60-14
d=21.80
w=3.90
-7.83%
|
165/65-14
d=22.44
w=4.22
-5.08%
|
165/70-14
d=23.09
w=4.55
-2.33%
|
165/75-14
d=23.74
w=4.87
+0.42%
|
165/80-14
d=24.39
w=5.20
+3.16%
|
165/85-14
d=25.04
w=5.52
+5.91%
|
| 175 |
175/25-14
d=17.44
w=1.72
-26.22%
|
175/30-14
d=18.13
w=2.07
-23.31%
|
175/35-14
d=18.82
w=2.41
-20.40%
|
175/40-14
d=19.51
w=2.76
-17.48%
|
175/45-14
d=20.20
w=3.10
-14.57%
|
175/50-14
d=20.89
w=3.44
-11.66%
|
175/55-14
d=21.58
w=3.79
-8.74%
|
175/60-14
d=22.27
w=4.13
-5.83%
|
175/65-14
d=22.96
w=4.48
-2.91%
|
175/70-14
d=23.65
w=4.82
0.00%
|
175/75-14
d=24.33
w=5.17
+2.91%
|
175/80-14
d=25.02
w=5.51
+5.83%
|
175/85-14
d=25.71
w=5.86
+8.74%
|
| 185 |
185/25-14
d=17.64
w=1.82
-25.39%
|
185/30-14
d=18.37
w=2.19
-22.31%
|
185/35-14
d=19.10
w=2.55
-19.23%
|
185/40-14
d=19.83
w=2.91
-16.15%
|
185/45-14
d=20.56
w=3.28
-13.07%
|
185/50-14
d=21.28
w=3.64
-9.99%
|
185/55-14
d=22.01
w=4.01
-6.91%
|
185/60-14
d=22.74
w=4.37
-3.83%
|
185/65-14
d=23.47
w=4.73
-0.75%
|
185/70-14
d=24.20
w=5.10
+2.33%
|
185/75-14
d=24.93
w=5.46
+5.41%
|
185/80-14
d=25.65
w=5.83
+8.49%
|
185/85-14
d=26.38
w=6.19
+11.57%
|
| 195 |
195/25-14
d=17.84
w=1.92
-24.56%
|
195/30-14
d=18.61
w=2.30
-21.31%
|
195/35-14
d=19.37
w=2.69
-18.07%
|
195/40-14
d=20.14
w=3.07
-14.82%
|
195/45-14
d=20.91
w=3.45
-11.57%
|
195/50-14
d=21.68
w=3.84
-8.33%
|
195/55-14
d=22.44
w=4.22
-5.08%
|
195/60-14
d=23.21
w=4.61
-1.83%
|
195/65-14
d=23.98
w=4.99
+1.42%
|
195/70-14
d=24.75
w=5.37
+4.66%
|
195/75-14
d=25.52
w=5.76
+7.91%
|
195/80-14
d=26.28
w=6.14
+11.16%
|
195/85-14
d=27.05
w=6.53
+14.40%
|
| 205 |
205/25-14
d=18.04
w=2.02
-23.73%
|
205/30-14
d=18.84
w=2.42
-20.31%
|
205/35-14
d=19.65
w=2.82
-16.90%
|
205/40-14
d=20.46
w=3.23
-13.49%
|
205/45-14
d=21.26
w=3.63
-10.07%
|
205/50-14
d=22.07
w=4.04
-6.66%
|
205/55-14
d=22.88
w=4.44
-3.25%
|
205/60-14
d=23.69
w=4.84
+0.17%
|
205/65-14
d=24.49
w=5.25
+3.58%
|
205/70-14
d=25.30
w=5.65
+6.99%
|
205/75-14
d=26.11
w=6.05
+10.41%
|
205/80-14
d=26.91
w=6.46
+13.82%
|
205/85-14
d=27.72
w=6.86
+17.23%
|
| 215 |
215/25-14
d=18.23
w=2.12
-22.89%
|
215/30-14
d=19.08
w=2.54
-19.31%
|
215/35-14
d=19.93
w=2.96
-15.73%
|
215/40-14
d=20.77
w=3.39
-12.15%
|
215/45-14
d=21.62
w=3.81
-8.57%
|
215/50-14
d=22.46
w=4.23
-5.00%
|
215/55-14
d=23.31
w=4.66
-1.42%
|
215/60-14
d=24.16
w=5.08
+2.16%
|
215/65-14
d=25.00
w=5.50
+5.74%
|
215/70-14
d=25.85
w=5.93
+9.32%
|
215/75-14
d=26.70
w=6.35
+12.90%
|
215/80-14
d=27.54
w=6.77
+16.48%
|
215/85-14
d=28.39
w=7.19
+20.06%
|
| 225 |
225/25-14
d=18.43
w=2.21
-22.06%
|
225/30-14
d=19.31
w=2.66
-18.32%
|
225/35-14
d=20.20
w=3.10
-14.57%
|
225/40-14
d=21.09
w=3.54
-10.82%
|
225/45-14
d=21.97
w=3.99
-7.08%
|
225/50-14
d=22.86
w=4.43
-3.33%
|
225/55-14
d=23.74
w=4.87
+0.42%
|
225/60-14
d=24.63
w=5.31
+4.16%
|
225/65-14
d=25.52
w=5.76
+7.91%
|
225/70-14
d=26.40
w=6.20
+11.66%
|
225/75-14
d=27.29
w=6.64
+15.40%
|
225/80-14
d=28.17
w=7.09
+19.15%
|
225/85-14
d=29.06
w=7.53
+22.89%
|
| 235 |
235/25-14
d=18.63
w=2.31
-21.23%
|
235/30-14
d=19.55
w=2.78
-17.32%
|
235/35-14
d=20.48
w=3.24
-13.40%
|
235/40-14
d=21.40
w=3.70
-9.49%
|
235/45-14
d=22.33
w=4.16
-5.58%
|
235/50-14
d=23.25
w=4.63
-1.67%
|
235/55-14
d=24.18
w=5.09
+2.25%
|
235/60-14
d=25.10
w=5.55
+6.16%
|
235/65-14
d=26.03
w=6.01
+10.07%
|
235/70-14
d=26.95
w=6.48
+13.99%
|
235/75-14
d=27.88
w=6.94
+17.90%
|
235/80-14
d=28.80
w=7.40
+21.81%
|
235/85-14
d=29.73
w=7.86
+25.72%
|
| 245 |
245/25-14
d=18.82
w=2.41
-20.40%
|
245/30-14
d=19.79
w=2.89
-16.32%
|
245/35-14
d=20.75
w=3.38
-12.24%
|
245/40-14
d=21.72
w=3.86
-8.16%
|
245/45-14
d=22.68
w=4.34
-4.08%
|
245/50-14
d=23.65
w=4.82
0.00%
|
245/55-14
d=24.61
w=5.31
+4.08%
|
245/60-14
d=25.57
w=5.79
+8.16%
|
245/65-14
d=26.54
w=6.27
+12.24%
|
245/70-14
d=27.50
w=6.75
+16.32%
|
245/75-14
d=28.47
w=7.23
+20.40%
|
245/80-14
d=29.43
w=7.72
+24.48%
|
245/85-14
d=30.40
w=8.20
+28.55%
|
| 255 |
255/25-14
d=19.02
w=2.51
-19.56%
|
255/30-14
d=20.02
w=3.01
-15.32%
|
255/35-14
d=21.03
w=3.51
-11.07%
|
255/40-14
d=22.03
w=4.02
-6.83%
|
255/45-14
d=23.04
w=4.52
-2.58%
|
255/50-14
d=24.04
w=5.02
+1.67%
|
255/55-14
d=25.04
w=5.52
+5.91%
|
255/60-14
d=26.05
w=6.02
+10.16%
|
255/65-14
d=27.05
w=6.53
+14.40%
|
255/70-14
d=28.06
w=7.03
+18.65%
|
255/75-14
d=29.06
w=7.53
+22.89%
|
255/80-14
d=30.06
w=8.03
+27.14%
|
255/85-14
d=31.07
w=8.53
+31.39%
|
| 265 |
265/25-14
d=19.22
w=2.61
-18.73%
|
265/30-14
d=20.26
w=3.13
-14.32%
|
265/35-14
d=21.30
w=3.65
-9.91%
|
265/40-14
d=22.35
w=4.17
-5.49%
|
265/45-14
d=23.39
w=4.69
-1.08%
|
265/50-14
d=24.43
w=5.22
+3.33%
|
265/55-14
d=25.48
w=5.74
+7.74%
|
265/60-14
d=26.52
w=6.26
+12.15%
|
265/65-14
d=27.56
w=6.78
+16.57%
|
265/70-14
d=28.61
w=7.30
+20.98%
|
265/75-14
d=29.65
w=7.82
+25.39%
|
265/80-14
d=30.69
w=8.35
+29.80%
|
265/85-14
d=31.74
w=8.87
+34.22%
|
| 275 |
275/25-14
d=19.41
w=2.71
-17.90%
|
275/30-14
d=20.50
w=3.25
-13.32%
|
275/35-14
d=21.58
w=3.79
-8.74%
|
275/40-14
d=22.66
w=4.33
-4.16%
|
275/45-14
d=23.74
w=4.87
+0.42%
|
275/50-14
d=24.83
w=5.41
+5.00%
|
275/55-14
d=25.91
w=5.95
+9.57%
|
275/60-14
d=26.99
w=6.50
+14.15%
|
275/65-14
d=28.07
w=7.04
+18.73%
|
275/70-14
d=29.16
w=7.58
+23.31%
|
275/75-14
d=30.24
w=8.12
+27.89%
|
275/80-14
d=31.32
w=8.66
+32.47%
|
275/85-14
d=32.41
w=9.20
+37.05%
|
| 285 |
285/25-14
d=19.61
w=2.81
-17.07%
|
285/30-14
d=20.73
w=3.37
-12.32%
|
285/35-14
d=21.85
w=3.93
-7.58%
|
285/40-14
d=22.98
w=4.49
-2.83%
|
285/45-14
d=24.10
w=5.05
+1.91%
|
285/50-14
d=25.22
w=5.61
+6.66%
|
285/55-14
d=26.34
w=6.17
+11.41%
|
285/60-14
d=27.46
w=6.73
+16.15%
|
285/65-14
d=28.59
w=7.29
+20.90%
|
285/70-14
d=29.71
w=7.85
+25.64%
|
285/75-14
d=30.83
w=8.42
+30.39%
|
285/80-14
d=31.95
w=8.98
+35.13%
|
285/85-14
d=33.07
w=9.54
+39.88%
|
| 295 |
295/25-14
d=19.81
w=2.90
-16.23%
|
295/30-14
d=20.97
w=3.48
-11.32%
|
295/35-14
d=22.13
w=4.06
-6.41%
|
295/40-14
d=23.29
w=4.65
-1.50%
|
295/45-14
d=24.45
w=5.23
+3.41%
|
295/50-14
d=25.61
w=5.81
+8.33%
|
295/55-14
d=26.78
w=6.39
+13.24%
|
295/60-14
d=27.94
w=6.97
+18.15%
|
295/65-14
d=29.10
w=7.55
+23.06%
|
295/70-14
d=30.26
w=8.13
+27.97%
|
295/75-14
d=31.42
w=8.71
+32.88%
|
295/80-14
d=32.58
w=9.29
+37.80%
|
295/85-14
d=33.74
w=9.87
+42.71%
|
| 305 |
305/25-14
d=20.00
w=3.00
-15.40%
|
305/30-14
d=21.20
w=3.60
-10.32%
|
305/35-14
d=22.41
w=4.20
-5.24%
|
305/40-14
d=23.61
w=4.80
-0.17%
|
305/45-14
d=24.81
w=5.40
+4.91%
|
305/50-14
d=26.01
w=6.00
+9.99%
|
305/55-14
d=27.21
w=6.60
+15.07%
|
305/60-14
d=28.41
w=7.20
+20.15%
|
305/65-14
d=29.61
w=7.81
+25.22%
|
305/70-14
d=30.81
w=8.41
+30.30%
|
305/75-14
d=32.01
w=9.01
+35.38%
|
305/80-14
d=33.21
w=9.61
+40.46%
|
305/85-14
d=34.41
w=10.21
+45.54%
|
| 315 |
315/25-14
d=20.20
w=3.10
-14.57%
|
315/30-14
d=21.44
w=3.72
-9.32%
|
315/35-14
d=22.68
w=4.34
-4.08%
|
315/40-14
d=23.92
w=4.96
+1.17%
|
315/45-14
d=25.16
w=5.58
+6.41%
|
315/50-14
d=26.40
w=6.20
+11.66%
|
315/55-14
d=27.64
w=6.82
+16.90%
|
315/60-14
d=28.88
w=7.44
+22.14%
|
315/65-14
d=30.12
w=8.06
+27.39%
|
315/70-14
d=31.36
w=8.68
+32.63%
|
315/75-14
d=32.60
w=9.30
+37.88%
|
315/80-14
d=33.84
w=9.92
+43.12%
|
315/85-14
d=35.08
w=10.54
+48.37%
|
| 325 |
325/25-14
d=20.40
w=3.20
-13.74%
|
325/30-14
d=21.68
w=3.84
-8.33%
|
325/35-14
d=22.96
w=4.48
-2.91%
|
325/40-14
d=24.24
w=5.12
+2.50%
|
325/45-14
d=25.52
w=5.76
+7.91%
|
325/50-14
d=26.80
w=6.40
+13.32%
|
325/55-14
d=28.07
w=7.04
+18.73%
|
325/60-14
d=29.35
w=7.68
+24.14%
|
325/65-14
d=30.63
w=8.32
+29.55%
|
325/70-14
d=31.91
w=8.96
+34.97%
|
325/75-14
d=33.19
w=9.60
+40.38%
|
325/80-14
d=34.47
w=10.24
+45.79%
|
325/85-14
d=35.75
w=10.88
+51.20%
|
| 335 |
335/25-14
d=20.59
w=3.30
-12.90%
|
335/30-14
d=21.91
w=3.96
-7.33%
|
335/35-14
d=23.23
w=4.62
-1.75%
|
335/40-14
d=24.55
w=5.28
+3.83%
|
335/45-14
d=25.87
w=5.94
+9.41%
|
335/50-14
d=27.19
w=6.59
+14.99%
|
335/55-14
d=28.51
w=7.25
+20.56%
|
335/60-14
d=29.83
w=7.91
+26.14%
|
335/65-14
d=31.15
w=8.57
+31.72%
|
335/70-14
d=32.46
w=9.23
+37.30%
|
335/75-14
d=33.78
w=9.89
+42.87%
|
335/80-14
d=35.10
w=10.55
+48.45%
|
335/85-14
d=36.42
w=11.21
+54.03%
|
|
Wheel Size 15
|
|||||||||||||
|
Wheel Size 16
|
|||||||||||||
|
Wheel Size 16.5
|
|||||||||||||
|
Wheel Size 17
|
|||||||||||||
|
Wheel Size 18
|
|||||||||||||
|
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!