Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
200/50r17 vs 195/65r15 Tire Comparison Side By Side
  200/50-17 195/65-15 Difference
Diameter inches (mm) 24.87 (631.8) 24.98 (634.5) 0.11 (2.7) 0.4%
Width inches (mm) 7.87 (200) 7.68 (195) -0.2 (-5) -2.5%
Circum. inches (mm) 78.14 (1984.86) 78.48 (1993.34) 0.33 (8.48) 0.4%
Sidewall Height inches (mm) 3.94 (100) 4.99 (126.75) 1.05 (26.75) 26.8%
Revolutions per mile (km) 810.81 (503.81) 807.36 (501.67) -3.45 (-2.14) -0.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.09 mph (32.32 km/h)
25 mph (40.23 km/h)25.11 mph (40.41 km/h)
30 mph (48.28 km/h)30.13 mph (48.49 km/h)
35 mph (56.33 km/h)35.15 mph (56.57 km/h)
40 mph (64.37 km/h)40.17 mph (64.65 km/h)
45 mph (72.42 km/h)45.19 mph (72.73 km/h)
50 mph (80.47 km/h)50.21 mph (80.81 km/h)
55 mph (88.51 km/h)55.24 mph (88.89 km/h)
60 mph (96.56 km/h)60.26 mph (96.97 km/h)
65 mph (104.61 km/h)65.28 mph (105.05 km/h)
70 mph (112.65 km/h)70.3 mph (113.14 km/h)
75 mph (120.7 km/h)75.32 mph (121.22 km/h)
80 mph (128.75 km/h)80.34 mph (129.3 km/h)
85 mph (136.79 km/h)85.36 mph (137.38 km/h)
90 mph (144.84 km/h)90.38 mph (145.46 km/h)
95 mph (152.89 km/h)95.41 mph (153.54 km/h)
100 mph (160.93 km/h)100.43 mph (161.62 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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