Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/35r16 vs 205/55r16 Tire Comparison Side By Side
  215/35-16 205/55-16 Difference
Diameter inches (mm) 21.93 (556.9) 24.88 (631.9) 2.95 (75) 13.5%
Width inches (mm) 8.46 (215) 8.07 (205) -0.39 (-10) -4.7%
Circum. inches (mm) 68.88 (1749.55) 78.16 (1985.17) 9.28 (235.62) 13.5%
Sidewall Height inches (mm) 2.96 (75.25) 4.44 (112.75) 1.48 (37.5) 49.8%
Revolutions per mile (km) 919.86 (571.57) 810.68 (503.73) -109.18 (-67.84) -11.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)22.69 mph (36.52 km/h)
25 mph (40.23 km/h)28.37 mph (45.65 km/h)
30 mph (48.28 km/h)34.04 mph (54.78 km/h)
35 mph (56.33 km/h)39.71 mph (63.91 km/h)
40 mph (64.37 km/h)45.39 mph (73.04 km/h)
45 mph (72.42 km/h)51.06 mph (82.17 km/h)
50 mph (80.47 km/h)56.73 mph (91.3 km/h)
55 mph (88.51 km/h)62.41 mph (100.43 km/h)
60 mph (96.56 km/h)68.08 mph (109.57 km/h)
65 mph (104.61 km/h)73.75 mph (118.7 km/h)
70 mph (112.65 km/h)79.43 mph (127.83 km/h)
75 mph (120.7 km/h)85.1 mph (136.96 km/h)
80 mph (128.75 km/h)90.77 mph (146.09 km/h)
85 mph (136.79 km/h)96.45 mph (155.22 km/h)
90 mph (144.84 km/h)102.12 mph (164.35 km/h)
95 mph (152.89 km/h)107.79 mph (173.48 km/h)
100 mph (160.93 km/h)113.47 mph (182.61 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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