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Best Matches for 215/45-18 in 18", 21".

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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
235/25-21 +0.03 % 50.02 999.69 25.63 2.31 58.75
195/30-21 -0.05 % 49.98 1,000.46 25.61 2.30 58.50
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
145/40-21 -0.20 % 49.90 1,002.00 25.57 2.28 58.00
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
165/35-21 -0.28 % 49.86 1,002.77 25.55 2.27 57.75
245/40-18 +0.38 % 50.19 996.16 25.72 3.86 98.00
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
225/25-21 -0.74 % 49.63 1,007.38 25.43 2.21 56.25
145/65-18 -0.77 % 49.62 1,007.68 25.42 3.71 94.25
245/25-21 +0.80 % 50.40 992.01 25.82 2.41 61.25
175/35-21 +0.80 % 50.40 992.01 25.82 2.41 61.25
235/40-18 -0.85 % 49.58 1,008.45 25.40 3.70 94.00
205/30-21 +0.88 % 50.44 991.24 25.84 2.42 61.50
285/35-18 +0.92 % 50.46 990.78 25.85 3.93 99.75
185/30-21 -0.97 % 49.52 1,009.68 25.37 2.19 55.50
155/40-21 +1.03 % 50.51 989.70 25.88 2.44 62.00
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
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
155/35-21 -1.35 % 49.32 1,013.52 25.27 2.14 54.25
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
215/25-21 -1.51 % 49.25 1,015.06 25.23 2.12 53.75
185/55-18 +1.54 % 50.77 984.63 26.01 4.01 101.75
255/25-21 +1.57 % 50.78 984.32 26.02 2.51 63.75
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
205/50-18 +1.77 % 50.88 982.33 26.07 4.04 102.50
215/30-21 +1.80 % 50.90 982.02 26.08 2.54 64.50
165/55-18 -1.84 % 49.08 1,018.44 25.15 3.57 90.75
185/35-21 +1.87 % 50.94 981.25 26.10 2.55 64.75
175/30-21 -1.89 % 49.05 1,018.90 25.13 2.07 52.50
295/35-18 +2.00 % 51.00 980.02 26.13 4.06 103.25
= 50mph
true speed when speedometer shows 50mph
1000miles =
odometer reading for actual 1000 miles
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
Wheel Size 21
145
145/25-21
d=23.85
w=1.43
-6.88%
145/30-21
d=24.43
w=1.71
-4.66%
145/35-21
d=25.00
w=2.00
-2.43%
145/40-21
d=25.57
w=2.28
-0.20%
145/45-21
d=26.14
w=2.57
+2.03%
145/50-21
d=26.71
w=2.85
+4.26%
145/55-21
d=27.28
w=3.14
+6.49%
145/60-21
d=27.85
w=3.43
+8.71%
145/65-21
d=28.42
w=3.71
+10.94%
145/70-21
d=28.99
w=4.00
+13.17%
145/75-21
d=29.56
w=4.28
+15.40%
145/80-21
d=30.13
w=4.57
+17.63%
145/85-21
d=30.70
w=4.85
+19.86%
155
155/25-21
d=24.05
w=1.53
-6.12%
155/30-21
d=24.66
w=1.83
-3.73%
155/35-21
d=25.27
w=2.14
-1.35%
155/40-21
d=25.88
w=2.44
+1.03%
155/45-21
d=26.49
w=2.75
+3.41%
155/50-21
d=27.10
w=3.05
+5.79%
155/55-21
d=27.71
w=3.36
+8.18%
155/60-21
d=28.32
w=3.66
+10.56%
155/65-21
d=28.93
w=3.97
+12.94%
155/70-21
d=29.54
w=4.27
+15.32%
155/75-21
d=30.15
w=4.58
+17.70%
155/80-21
d=30.76
w=4.88
+20.09%
155/85-21
d=31.37
w=5.19
+22.47%
165
165/25-21
d=24.25
w=1.62
-5.35%
165/30-21
d=24.90
w=1.95
-2.81%
165/35-21
d=25.55
w=2.27
-0.28%
165/40-21
d=26.20
w=2.60
+2.26%
165/45-21
d=26.85
w=2.92
+4.79%
165/50-21
d=27.50
w=3.25
+7.33%
165/55-21
d=28.15
w=3.57
+9.87%
165/60-21
d=28.80
w=3.90
+12.40%
165/65-21
d=29.44
w=4.22
+14.94%
165/70-21
d=30.09
w=4.55
+17.47%
165/75-21
d=30.74
w=4.87
+20.01%
165/80-21
d=31.39
w=5.20
+22.54%
165/85-21
d=32.04
w=5.52
+25.08%
175
175/25-21
d=24.44
w=1.72
-4.58%
175/30-21
d=25.13
w=2.07
-1.89%
175/35-21
d=25.82
w=2.41
+0.80%
175/40-21
d=26.51
w=2.76
+3.49%
175/45-21
d=27.20
w=3.10
+6.18%
175/50-21
d=27.89
w=3.44
+8.87%
175/55-21
d=28.58
w=3.79
+11.56%
175/60-21
d=29.27
w=4.13
+14.25%
175/65-21
d=29.96
w=4.48
+16.94%
175/70-21
d=30.65
w=4.82
+19.63%
175/75-21
d=31.33
w=5.17
+22.31%
175/80-21
d=32.02
w=5.51
+25.00%
175/85-21
d=32.71
w=5.86
+27.69%
185
185/25-21
d=24.64
w=1.82
-3.81%
185/30-21
d=25.37
w=2.19
-0.97%
185/35-21
d=26.10
w=2.55
+1.87%
185/40-21
d=26.83
w=2.91
+4.72%
185/45-21
d=27.56
w=3.28
+7.56%
185/50-21
d=28.28
w=3.64
+10.40%
185/55-21
d=29.01
w=4.01
+13.25%
185/60-21
d=29.74
w=4.37
+16.09%
185/65-21
d=30.47
w=4.73
+18.93%
185/70-21
d=31.20
w=5.10
+21.78%
185/75-21
d=31.93
w=5.46
+24.62%
185/80-21
d=32.65
w=5.83
+27.46%
185/85-21
d=33.38
w=6.19
+30.31%
195
195/25-21
d=24.84
w=1.92
-3.04%
195/30-21
d=25.61
w=2.30
-0.05%
195/35-21
d=26.37
w=2.69
+2.95%
195/40-21
d=27.14
w=3.07
+5.95%
195/45-21
d=27.91
w=3.45
+8.94%
195/50-21
d=28.68
w=3.84
+11.94%
195/55-21
d=29.44
w=4.22
+14.94%
195/60-21
d=30.21
w=4.61
+17.93%
195/65-21
d=30.98
w=4.99
+20.93%
195/70-21
d=31.75
w=5.37
+23.93%
195/75-21
d=32.52
w=5.76
+26.92%
195/80-21
d=33.28
w=6.14
+29.92%
195/85-21
d=34.05
w=6.53
+32.92%
205
205/25-21
d=25.04
w=2.02
-2.27%
205/30-21
d=25.84
w=2.42
+0.88%
205/35-21
d=26.65
w=2.82
+4.03%
205/40-21
d=27.46
w=3.23
+7.18%
205/45-21
d=28.26
w=3.63
+10.33%
205/50-21
d=29.07
w=4.04
+13.48%
205/55-21
d=29.88
w=4.44
+16.63%
205/60-21
d=30.69
w=4.84
+19.78%
205/65-21
d=31.49
w=5.25
+22.93%
205/70-21
d=32.30
w=5.65
+26.08%
205/75-21
d=33.11
w=6.05
+29.23%
205/80-21
d=33.91
w=6.46
+32.38%
205/85-21
d=34.72
w=6.86
+35.53%
215
215/25-21
d=25.23
w=2.12
-1.51%
215/30-21
d=26.08
w=2.54
+1.80%
215/35-21
d=26.93
w=2.96
+5.10%
215/40-21
d=27.77
w=3.39
+8.41%
215/45-21
d=28.62
w=3.81
+11.71%
215/50-21
d=29.46
w=4.23
+15.01%
215/55-21
d=30.31
w=4.66
+18.32%
215/60-21
d=31.16
w=5.08
+21.62%
215/65-21
d=32.00
w=5.50
+24.93%
215/70-21
d=32.85
w=5.93
+28.23%
215/75-21
d=33.70
w=6.35
+31.54%
215/80-21
d=34.54
w=6.77
+34.84%
215/85-21
d=35.39
w=7.19
+38.14%
225
225/25-21
d=25.43
w=2.21
-0.74%
225/30-21
d=26.31
w=2.66
+2.72%
225/35-21
d=27.20
w=3.10
+6.18%
225/40-21
d=28.09
w=3.54
+9.64%
225/45-21
d=28.97
w=3.99
+13.09%
225/50-21
d=29.86
w=4.43
+16.55%
225/55-21
d=30.74
w=4.87
+20.01%
225/60-21
d=31.63
w=5.31
+23.47%
225/65-21
d=32.52
w=5.76
+26.92%
225/70-21
d=33.40
w=6.20
+30.38%
225/75-21
d=34.29
w=6.64
+33.84%
225/80-21
d=35.17
w=7.09
+37.30%
225/85-21
d=36.06
w=7.53
+40.76%
235
235/25-21
d=25.63
w=2.31
+0.03%
235/30-21
d=26.55
w=2.78
+3.64%
235/35-21
d=27.48
w=3.24
+7.25%
235/40-21
d=28.40
w=3.70
+10.87%
235/45-21
d=29.33
w=4.16
+14.48%
235/50-21
d=30.25
w=4.63
+18.09%
235/55-21
d=31.18
w=5.09
+21.70%
235/60-21
d=32.10
w=5.55
+25.31%
235/65-21
d=33.03
w=6.01
+28.92%
235/70-21
d=33.95
w=6.48
+32.53%
235/75-21
d=34.88
w=6.94
+36.15%
235/80-21
d=35.80
w=7.40
+39.76%
235/85-21
d=36.73
w=7.86
+43.37%
245
245/25-21
d=25.82
w=2.41
+0.80%
245/30-21
d=26.79
w=2.89
+4.56%
245/35-21
d=27.75
w=3.38
+8.33%
245/40-21
d=28.72
w=3.86
+12.09%
245/45-21
d=29.68
w=4.34
+15.86%
245/50-21
d=30.65
w=4.82
+19.63%
245/55-21
d=31.61
w=5.31
+23.39%
245/60-21
d=32.57
w=5.79
+27.16%
245/65-21
d=33.54
w=6.27
+30.92%
245/70-21
d=34.50
w=6.75
+34.69%
245/75-21
d=35.47
w=7.23
+38.45%
245/80-21
d=36.43
w=7.72
+42.22%
245/85-21
d=37.40
w=8.20
+45.98%
255
255/25-21
d=26.02
w=2.51
+1.57%
255/30-21
d=27.02
w=3.01
+5.49%
255/35-21
d=28.03
w=3.51
+9.41%
255/40-21
d=29.03
w=4.02
+13.32%
255/45-21
d=30.04
w=4.52
+17.24%
255/50-21
d=31.04
w=5.02
+21.16%
255/55-21
d=32.04
w=5.52
+25.08%
255/60-21
d=33.05
w=6.02
+29.00%
255/65-21
d=34.05
w=6.53
+32.92%
255/70-21
d=35.06
w=7.03
+36.84%
255/75-21
d=36.06
w=7.53
+40.76%
255/80-21
d=37.06
w=8.03
+44.67%
255/85-21
d=38.07
w=8.53
+48.59%
265
265/25-21
d=26.22
w=2.61
+2.34%
265/30-21
d=27.26
w=3.13
+6.41%
265/35-21
d=28.30
w=3.65
+10.48%
265/40-21
d=29.35
w=4.17
+14.55%
265/45-21
d=30.39
w=4.69
+18.63%
265/50-21
d=31.43
w=5.22
+22.70%
265/55-21
d=32.48
w=5.74
+26.77%
265/60-21
d=33.52
w=6.26
+30.84%
265/65-21
d=34.56
w=6.78
+34.92%
265/70-21
d=35.61
w=7.30
+38.99%
265/75-21
d=36.65
w=7.82
+43.06%
265/80-21
d=37.69
w=8.35
+47.13%
265/85-21
d=38.74
w=8.87
+51.21%
275
275/25-21
d=26.41
w=2.71
+3.10%
275/30-21
d=27.50
w=3.25
+7.33%
275/35-21
d=28.58
w=3.79
+11.56%
275/40-21
d=29.66
w=4.33
+15.78%
275/45-21
d=30.74
w=4.87
+20.01%
275/50-21
d=31.83
w=5.41
+24.24%
275/55-21
d=32.91
w=5.95
+28.46%
275/60-21
d=33.99
w=6.50
+32.69%
275/65-21
d=35.07
w=7.04
+36.91%
275/70-21
d=36.16
w=7.58
+41.14%
275/75-21
d=37.24
w=8.12
+45.37%
275/80-21
d=38.32
w=8.66
+49.59%
275/85-21
d=39.41
w=9.20
+53.82%
285
285/25-21
d=26.61
w=2.81
+3.87%
285/30-21
d=27.73
w=3.37
+8.25%
285/35-21
d=28.85
w=3.93
+12.63%
285/40-21
d=29.98
w=4.49
+17.01%
285/45-21
d=31.10
w=5.05
+21.39%
285/50-21
d=32.22
w=5.61
+25.77%
285/55-21
d=33.34
w=6.17
+30.15%
285/60-21
d=34.46
w=6.73
+34.53%
285/65-21
d=35.59
w=7.29
+38.91%
285/70-21
d=36.71
w=7.85
+43.29%
285/75-21
d=37.83
w=8.42
+47.67%
285/80-21
d=38.95
w=8.98
+52.05%
285/85-21
d=40.07
w=9.54
+56.43%
295
295/25-21
d=26.81
w=2.90
+4.64%
295/30-21
d=27.97
w=3.48
+9.17%
295/35-21
d=29.13
w=4.06
+13.71%
295/40-21
d=30.29
w=4.65
+18.24%
295/45-21
d=31.45
w=5.23
+22.78%
295/50-21
d=32.61
w=5.81
+27.31%
295/55-21
d=33.78
w=6.39
+31.84%
295/60-21
d=34.94
w=6.97
+36.38%
295/65-21
d=36.10
w=7.55
+40.91%
295/70-21
d=37.26
w=8.13
+45.44%
295/75-21
d=38.42
w=8.71
+49.98%
295/80-21
d=39.58
w=9.29
+54.51%
295/85-21
d=40.74
w=9.87
+59.04%
305
305/25-21
d=27.00
w=3.00
+5.41%
305/30-21
d=28.20
w=3.60
+10.10%
305/35-21
d=29.41
w=4.20
+14.78%
305/40-21
d=30.61
w=4.80
+19.47%
305/45-21
d=31.81
w=5.40
+24.16%
305/50-21
d=33.01
w=6.00
+28.85%
305/55-21
d=34.21
w=6.60
+33.53%
305/60-21
d=35.41
w=7.20
+38.22%
305/65-21
d=36.61
w=7.81
+42.91%
305/70-21
d=37.81
w=8.41
+47.59%
305/75-21
d=39.01
w=9.01
+52.28%
305/80-21
d=40.21
w=9.61
+56.97%
305/85-21
d=41.41
w=10.21
+61.66%
315
315/25-21
d=27.20
w=3.10
+6.18%
315/30-21
d=28.44
w=3.72
+11.02%
315/35-21
d=29.68
w=4.34
+15.86%
315/40-21
d=30.92
w=4.96
+20.70%
315/45-21
d=32.16
w=5.58
+25.54%
315/50-21
d=33.40
w=6.20
+30.38%
315/55-21
d=34.64
w=6.82
+35.22%
315/60-21
d=35.88
w=7.44
+40.06%
315/65-21
d=37.12
w=8.06
+44.91%
315/70-21
d=38.36
w=8.68
+49.75%
315/75-21
d=39.60
w=9.30
+54.59%
315/80-21
d=40.84
w=9.92
+59.43%
315/85-21
d=42.08
w=10.54
+64.27%
325
325/25-21
d=27.40
w=3.20
+6.95%
325/30-21
d=28.68
w=3.84
+11.94%
325/35-21
d=29.96
w=4.48
+16.94%
325/40-21
d=31.24
w=5.12
+21.93%
325/45-21
d=32.52
w=5.76
+26.92%
325/50-21
d=33.80
w=6.40
+31.92%
325/55-21
d=35.07
w=7.04
+36.91%
325/60-21
d=36.35
w=7.68
+41.91%
325/65-21
d=37.63
w=8.32
+46.90%
325/70-21
d=38.91
w=8.96
+51.90%
325/75-21
d=40.19
w=9.60
+56.89%
325/80-21
d=41.47
w=10.24
+61.89%
325/85-21
d=42.75
w=10.88
+66.88%
335
335/25-21
d=27.59
w=3.30
+7.71%
335/30-21
d=28.91
w=3.96
+12.86%
335/35-21
d=30.23
w=4.62
+18.01%
335/40-21
d=31.55
w=5.28
+23.16%
335/45-21
d=32.87
w=5.94
+28.31%
335/50-21
d=34.19
w=6.59
+33.46%
335/55-21
d=35.51
w=7.25
+38.60%
335/60-21
d=36.83
w=7.91
+43.75%
335/65-21
d=38.15
w=8.57
+48.90%
335/70-21
d=39.46
w=9.23
+54.05%
335/75-21
d=40.78
w=9.89
+59.20%
335/80-21
d=42.10
w=10.55
+64.35%
335/85-21
d=43.42
w=11.21
+69.49%

Disclaimer:

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!