Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/60r16 vs 215/55r16 Tire Comparison Side By Side
  195/60-16 215/55-16 Difference
Diameter inches (mm) 25.21 (640.4) 25.31 (642.9) 0.1 (2.5) 0.4%
Width inches (mm) 7.68 (195) 8.46 (215) 0.79 (20) 10.3%
Circum. inches (mm) 79.21 (2011.88) 79.52 (2019.73) 0.31 (7.85) 0.4%
Sidewall Height inches (mm) 4.61 (117) 4.66 (118.25) 0.05 (1.25) 1.1%
Revolutions per mile (km) 799.92 (497.05) 796.81 (495.11) -3.11 (-1.93) -0.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.08 mph (32.31 km/h)
25 mph (40.23 km/h)25.1 mph (40.39 km/h)
30 mph (48.28 km/h)30.12 mph (48.47 km/h)
35 mph (56.33 km/h)35.14 mph (56.55 km/h)
40 mph (64.37 km/h)40.16 mph (64.63 km/h)
45 mph (72.42 km/h)45.18 mph (72.7 km/h)
50 mph (80.47 km/h)50.2 mph (80.78 km/h)
55 mph (88.51 km/h)55.21 mph (88.86 km/h)
60 mph (96.56 km/h)60.23 mph (96.94 km/h)
65 mph (104.61 km/h)65.25 mph (105.02 km/h)
70 mph (112.65 km/h)70.27 mph (113.09 km/h)
75 mph (120.7 km/h)75.29 mph (121.17 km/h)
80 mph (128.75 km/h)80.31 mph (129.25 km/h)
85 mph (136.79 km/h)85.33 mph (137.33 km/h)
90 mph (144.84 km/h)90.35 mph (145.41 km/h)
95 mph (152.89 km/h)95.37 mph (153.48 km/h)
100 mph (160.93 km/h)100.39 mph (161.56 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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