Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
200/60r16 vs 200/40r16 Tire Comparison Side By Side
  200/60-16 200/40-16 Difference
Diameter inches (mm) 25.45 (646.4) 22.3 (566.4) -3.15 (-80) -12.4%
Width inches (mm) 7.87 (200) 7.87 (200) 0 (0) 0%
Circum. inches (mm) 79.95 (2030.73) 70.06 (1779.4) -9.89 (-251.33) -12.4%
Sidewall Height inches (mm) 4.72 (120) 3.15 (80) -1.57 (-40) -33.3%
Revolutions per mile (km) 792.5 (492.43) 904.43 (561.99) 111.93 (69.55) 14.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.52 mph (28.2 km/h)
25 mph (40.23 km/h)21.91 mph (35.25 km/h)
30 mph (48.28 km/h)26.29 mph (42.31 km/h)
35 mph (56.33 km/h)30.67 mph (49.36 km/h)
40 mph (64.37 km/h)35.05 mph (56.41 km/h)
45 mph (72.42 km/h)39.43 mph (63.46 km/h)
50 mph (80.47 km/h)43.81 mph (70.51 km/h)
55 mph (88.51 km/h)48.19 mph (77.56 km/h)
60 mph (96.56 km/h)52.57 mph (84.61 km/h)
65 mph (104.61 km/h)56.96 mph (91.66 km/h)
70 mph (112.65 km/h)61.34 mph (98.71 km/h)
75 mph (120.7 km/h)65.72 mph (105.76 km/h)
80 mph (128.75 km/h)70.1 mph (112.81 km/h)
85 mph (136.79 km/h)74.48 mph (119.86 km/h)
90 mph (144.84 km/h)78.86 mph (126.92 km/h)
95 mph (152.89 km/h)83.24 mph (133.97 km/h)
100 mph (160.93 km/h)87.62 mph (141.02 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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