Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
185/95r14 vs 195/65r14 Tire Comparison Side By Side
  185/95-14 195/65-14 Difference
Diameter inches (mm) 27.84 (707.1) 23.98 (609.1) -3.86 (-98) -13.9%
Width inches (mm) 7.28 (185) 7.68 (195) 0.39 (10) 5.4%
Circum. inches (mm) 87.46 (2221.42) 75.34 (1913.54) -12.12 (-307.88) -13.9%
Sidewall Height inches (mm) 6.92 (175.75) 4.99 (126.75) -1.93 (-49) -27.9%
Revolutions per mile (km) 724.47 (450.16) 841.03 (522.59) 116.56 (72.43) 16.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.23 mph (27.73 km/h)
25 mph (40.23 km/h)21.54 mph (34.66 km/h)
30 mph (48.28 km/h)25.84 mph (41.59 km/h)
35 mph (56.33 km/h)30.15 mph (48.52 km/h)
40 mph (64.37 km/h)34.46 mph (55.45 km/h)
45 mph (72.42 km/h)38.76 mph (62.38 km/h)
50 mph (80.47 km/h)43.07 mph (69.32 km/h)
55 mph (88.51 km/h)47.38 mph (76.25 km/h)
60 mph (96.56 km/h)51.68 mph (83.18 km/h)
65 mph (104.61 km/h)55.99 mph (90.11 km/h)
70 mph (112.65 km/h)60.3 mph (97.04 km/h)
75 mph (120.7 km/h)64.61 mph (103.97 km/h)
80 mph (128.75 km/h)68.91 mph (110.9 km/h)
85 mph (136.79 km/h)73.22 mph (117.84 km/h)
90 mph (144.84 km/h)77.53 mph (124.77 km/h)
95 mph (152.89 km/h)81.83 mph (131.7 km/h)
100 mph (160.93 km/h)86.14 mph (138.63 km/h)

Gear Ratio / RPMs for New Tire (@ 65 mph)
2.35 2.73 2.94 3.07 3.21 3.31 3.42 3.55 3.73 3.91 4.11 4.27 4.56 4.88 5.13 5.29 5.38 5.71 6.17 7.17
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