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 215/60r16 Tire Comparison Side By Side
  195/60-16 215/60-16 Difference
Diameter inches (mm) 25.21 (640.4) 26.16 (664.4) 0.94 (24) 3.7%
Width inches (mm) 7.68 (195) 8.46 (215) 0.79 (20) 10.3%
Circum. inches (mm) 79.21 (2011.88) 82.18 (2087.27) 2.97 (75.4) 3.7%
Sidewall Height inches (mm) 4.61 (117) 5.08 (129) 0.47 (12) 10.3%
Revolutions per mile (km) 799.92 (497.05) 771.03 (479.09) -28.9 (-17.95) -3.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.75 mph (33.39 km/h)
25 mph (40.23 km/h)25.94 mph (41.74 km/h)
30 mph (48.28 km/h)31.12 mph (50.09 km/h)
35 mph (56.33 km/h)36.31 mph (58.44 km/h)
40 mph (64.37 km/h)41.5 mph (66.79 km/h)
45 mph (72.42 km/h)46.69 mph (75.13 km/h)
50 mph (80.47 km/h)51.87 mph (83.48 km/h)
55 mph (88.51 km/h)57.06 mph (91.83 km/h)
60 mph (96.56 km/h)62.25 mph (100.18 km/h)
65 mph (104.61 km/h)67.44 mph (108.53 km/h)
70 mph (112.65 km/h)72.62 mph (116.88 km/h)
75 mph (120.7 km/h)77.81 mph (125.22 km/h)
80 mph (128.75 km/h)83 mph (133.57 km/h)
85 mph (136.79 km/h)88.19 mph (141.92 km/h)
90 mph (144.84 km/h)93.37 mph (150.27 km/h)
95 mph (152.89 km/h)98.56 mph (158.62 km/h)
100 mph (160.93 km/h)103.75 mph (166.97 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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