Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
200/60r17 vs 200/40r17 Tire Comparison Side By Side
  200/60-17 200/40-17 Difference
Diameter inches (mm) 26.45 (671.8) 23.3 (591.8) -3.15 (-80) -11.9%
Width inches (mm) 7.87 (200) 7.87 (200) 0 (0) 0%
Circum. inches (mm) 83.09 (2110.52) 73.2 (1859.19) -9.89 (-251.33) -11.9%
Sidewall Height inches (mm) 4.72 (120) 3.15 (80) -1.57 (-40) -33.3%
Revolutions per mile (km) 762.53 (473.82) 865.61 (537.87) 103.08 (64.05) 13.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.62 mph (28.35 km/h)
25 mph (40.23 km/h)22.02 mph (35.44 km/h)
30 mph (48.28 km/h)26.43 mph (42.53 km/h)
35 mph (56.33 km/h)30.83 mph (49.62 km/h)
40 mph (64.37 km/h)35.24 mph (56.71 km/h)
45 mph (72.42 km/h)39.64 mph (63.8 km/h)
50 mph (80.47 km/h)44.05 mph (70.89 km/h)
55 mph (88.51 km/h)48.45 mph (77.97 km/h)
60 mph (96.56 km/h)52.86 mph (85.06 km/h)
65 mph (104.61 km/h)57.26 mph (92.15 km/h)
70 mph (112.65 km/h)61.66 mph (99.24 km/h)
75 mph (120.7 km/h)66.07 mph (106.33 km/h)
80 mph (128.75 km/h)70.47 mph (113.42 km/h)
85 mph (136.79 km/h)74.88 mph (120.5 km/h)
90 mph (144.84 km/h)79.28 mph (127.59 km/h)
95 mph (152.89 km/h)83.69 mph (134.68 km/h)
100 mph (160.93 km/h)88.09 mph (141.77 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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