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This tire size calculator lets you check what you can replace your tires or wheels with without changing overall tire diameter or with some acceptable diameter change. The data presented here is in no way "official", please use common sense and check with manufacturer recommendations and other references.
Current Tire Size: (examples: 185/65-14, 205/75-15) How to link to this page?
Width: to Ratio: to Wheel (Rim Size): to
Max. Difference, %:
Best Matches for 185/60-14 in 14".
Code Width Ratio Wheel Diameter Wall," Wall,mm Diam.Diff. = 50mph 1000miles =
185/60-14 185 60 14 22.74 4.37 111.00 0.00% 50.00 1,000.00
315/35-14 315 35 14 22.68 4.34 110.25 -0.26% 49.87 1,002.60
245/45-14 245 45 14 22.68 4.34 110.25 -0.26% 49.87 1,002.60
275/40-14 275 40 14 22.66 4.33 110.00 -0.35% 49.83 1,003.46
225/50-14 225 50 14 22.86 4.43 112.50 +0.52% 50.26 994.81
205/55-14 205 55 14 22.88 4.44 112.75 +0.61% 50.30 993.94
145/75-14 145 75 14 22.56 4.28 108.75 -0.78% 49.61 1,007.79
155/70-14 155 70 14 22.54 4.27 108.50 -0.87% 49.57 1,008.66
325/35-14 325 35 14 22.96 4.48 113.75 +0.95% 50.48 990.48
175/65-14 175 65 14 22.96 4.48 113.75 +0.95% 50.48 990.48
285/40-14 285 40 14 22.98 4.49 114.00 +1.04% 50.52 989.61
215/50-14 215 50 14 22.46 4.23 107.50 -1.21% 49.39 1,012.12
255/45-14 255 45 14 23.04 4.52 114.75 +1.30% 50.65 987.02
195/55-14 195 55 14 22.44 4.22 107.25 -1.30% 49.35 1,012.98
165/65-14 165 65 14 22.44 4.22 107.25 -1.30% 49.35 1,012.98
305/35-14 305 35 14 22.41 4.20 106.75 -1.47% 49.26 1,014.72
165/70-14 165 70 14 23.09 4.55 115.50 +1.56% 50.78 984.42
265/40-14 265 40 14 22.35 4.17 106.00 -1.73% 49.13 1,017.31
155/75-14 155 75 14 23.15 4.58 116.25 +1.82% 50.91 981.82
235/45-14 235 45 14 22.33 4.16 105.75 -1.82% 49.09 1,018.18
"= 50mph" - true speed when speedometer shows 50mph
"1000miles =" - odometer reading for actual 1000 miles

Click on [Show] to open charts and add wheel sizes to the matches table.
Ratio: 30 35 40 45 50 55 60 65 70 75 80 85
Wheel Size 12" [Show] [Hide]
Wheel Size 13" [Show] [Hide]
Wheel Size 14"  
145 145/30-14
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%
155 155/30-14
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%
165 165/30-14
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%
175 175/30-14
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%
185 185/30-14
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%
195 195/30-14
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%
205 205/30-14
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%
215 215/30-14
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%
225 225/30-14
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%
235 235/30-14
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%
245 245/30-14
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%
255 255/30-14
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%
265 265/30-14
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%
275 275/30-14
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%
285 285/30-14
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%
295 295/30-14
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%
305 305/30-14
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%
315 315/30-14
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%
325 325/30-14
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%
Wheel Size 15" [Show] [Hide]
Wheel Size 16" [Show] [Hide]
Wheel Size 16.5" [Show] [Hide]
Wheel Size 17" [Show] [Hide]
Wheel Size 18" [Show] [Hide]
Wheel Size 19" [Show] [Hide]
Wheel Size 20" [Show] [Hide]
Wheel Size 21" [Show] [Hide]

Thanx:
   Mark Sink's tire calculator -- for the idea and reference numbers
   Tirerack.com -- for quick and reliable service
   Mike.S -- for inspiration :)
   XAO::Web -- for bells and whistles that allowed to create this page in about an hour
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