Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/60r17 vs 205/60r17 Tire Comparison Side By Side
  215/60-17 205/60-17 Difference
Diameter inches (mm) 27.16 (689.8) 26.69 (677.8) -0.47 (-12) -1.7%
Width inches (mm) 8.46 (215) 8.07 (205) -0.39 (-10) -4.7%
Circum. inches (mm) 85.32 (2167.07) 83.83 (2129.37) -1.48 (-37.7) -1.7%
Sidewall Height inches (mm) 5.08 (129) 4.84 (123) -0.24 (-6) -4.7%
Revolutions per mile (km) 742.64 (461.45) 755.78 (469.62) 13.15 (8.17) 1.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.65 mph (31.63 km/h)
25 mph (40.23 km/h)24.57 mph (39.53 km/h)
30 mph (48.28 km/h)29.48 mph (47.44 km/h)
35 mph (56.33 km/h)34.39 mph (55.35 km/h)
40 mph (64.37 km/h)39.3 mph (63.25 km/h)
45 mph (72.42 km/h)44.22 mph (71.16 km/h)
50 mph (80.47 km/h)49.13 mph (79.07 km/h)
55 mph (88.51 km/h)54.04 mph (86.97 km/h)
60 mph (96.56 km/h)58.96 mph (94.88 km/h)
65 mph (104.61 km/h)63.87 mph (102.79 km/h)
70 mph (112.65 km/h)68.78 mph (110.69 km/h)
75 mph (120.7 km/h)73.7 mph (118.6 km/h)
80 mph (128.75 km/h)78.61 mph (126.51 km/h)
85 mph (136.79 km/h)83.52 mph (134.41 km/h)
90 mph (144.84 km/h)88.43 mph (142.32 km/h)
95 mph (152.89 km/h)93.35 mph (150.23 km/h)
100 mph (160.93 km/h)98.26 mph (158.14 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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