Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/60r16 vs 205/55r16 Tire Comparison Side By Side
  215/60-16 205/55-16 Difference
Diameter inches (mm) 26.16 (664.4) 24.88 (631.9) -1.28 (-32.5) -4.9%
Width inches (mm) 8.46 (215) 8.07 (205) -0.39 (-10) -4.7%
Circum. inches (mm) 82.18 (2087.27) 78.16 (1985.17) -4.02 (-102.1) -4.9%
Sidewall Height inches (mm) 5.08 (129) 4.44 (112.75) -0.64 (-16.25) -12.6%
Revolutions per mile (km) 771.03 (479.09) 810.68 (503.73) 39.66 (24.64) 5.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.02 mph (30.61 km/h)
25 mph (40.23 km/h)23.78 mph (38.27 km/h)
30 mph (48.28 km/h)28.53 mph (45.92 km/h)
35 mph (56.33 km/h)33.29 mph (53.57 km/h)
40 mph (64.37 km/h)38.04 mph (61.22 km/h)
45 mph (72.42 km/h)42.8 mph (68.88 km/h)
50 mph (80.47 km/h)47.55 mph (76.53 km/h)
55 mph (88.51 km/h)52.31 mph (84.18 km/h)
60 mph (96.56 km/h)57.07 mph (91.84 km/h)
65 mph (104.61 km/h)61.82 mph (99.49 km/h)
70 mph (112.65 km/h)66.58 mph (107.14 km/h)
75 mph (120.7 km/h)71.33 mph (114.8 km/h)
80 mph (128.75 km/h)76.09 mph (122.45 km/h)
85 mph (136.79 km/h)80.84 mph (130.1 km/h)
90 mph (144.84 km/h)85.6 mph (137.76 km/h)
95 mph (152.89 km/h)90.35 mph (145.41 km/h)
100 mph (160.93 km/h)95.11 mph (153.06 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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