Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
200/55r16 vs 205/85r16 Tire Comparison Side By Side
  200/55-16 205/85-16 Difference
Diameter inches (mm) 24.66 (626.4) 29.72 (754.9) 5.06 (128.5) 20.5%
Width inches (mm) 7.87 (200) 8.07 (205) 0.2 (5) 2.5%
Circum. inches (mm) 77.48 (1967.89) 93.37 (2371.59) 15.89 (403.69) 20.5%
Sidewall Height inches (mm) 4.33 (110) 6.86 (174.25) 2.53 (64.25) 58.4%
Revolutions per mile (km) 817.8 (508.16) 678.59 (421.66) -139.21 (-86.5) -17%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)24.1 mph (38.79 km/h)
25 mph (40.23 km/h)30.13 mph (48.49 km/h)
30 mph (48.28 km/h)36.15 mph (58.18 km/h)
35 mph (56.33 km/h)42.18 mph (67.88 km/h)
40 mph (64.37 km/h)48.21 mph (77.58 km/h)
45 mph (72.42 km/h)54.23 mph (87.28 km/h)
50 mph (80.47 km/h)60.26 mph (96.97 km/h)
55 mph (88.51 km/h)66.28 mph (106.67 km/h)
60 mph (96.56 km/h)72.31 mph (116.37 km/h)
65 mph (104.61 km/h)78.33 mph (126.07 km/h)
70 mph (112.65 km/h)84.36 mph (135.76 km/h)
75 mph (120.7 km/h)90.39 mph (145.46 km/h)
80 mph (128.75 km/h)96.41 mph (155.16 km/h)
85 mph (136.79 km/h)102.44 mph (164.86 km/h)
90 mph (144.84 km/h)108.46 mph (174.55 km/h)
95 mph (152.89 km/h)114.49 mph (184.25 km/h)
100 mph (160.93 km/h)120.51 mph (193.95 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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