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 195/85r16 Tire Comparison Side By Side
  215/35-16 195/85-16 Difference
Diameter inches (mm) 21.93 (556.9) 29.05 (737.9) 7.13 (181) 32.5%
Width inches (mm) 8.46 (215) 7.68 (195) -0.79 (-20) -9.3%
Circum. inches (mm) 68.88 (1749.55) 91.27 (2318.18) 22.39 (568.63) 32.5%
Sidewall Height inches (mm) 2.96 (75.25) 6.53 (165.75) 3.56 (90.5) 120.3%
Revolutions per mile (km) 919.86 (571.57) 694.23 (431.37) -225.63 (-140.2) -24.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)26.5 mph (42.65 km/h)
25 mph (40.23 km/h)33.13 mph (53.31 km/h)
30 mph (48.28 km/h)39.75 mph (63.97 km/h)
35 mph (56.33 km/h)46.38 mph (74.63 km/h)
40 mph (64.37 km/h)53 mph (85.3 km/h)
45 mph (72.42 km/h)59.63 mph (95.96 km/h)
50 mph (80.47 km/h)66.25 mph (106.62 km/h)
55 mph (88.51 km/h)72.88 mph (117.28 km/h)
60 mph (96.56 km/h)79.5 mph (127.94 km/h)
65 mph (104.61 km/h)86.13 mph (138.61 km/h)
70 mph (112.65 km/h)92.75 mph (149.27 km/h)
75 mph (120.7 km/h)99.38 mph (159.93 km/h)
80 mph (128.75 km/h)106 mph (170.59 km/h)
85 mph (136.79 km/h)112.63 mph (181.25 km/h)
90 mph (144.84 km/h)119.25 mph (191.92 km/h)
95 mph (152.89 km/h)125.88 mph (202.58 km/h)
100 mph (160.93 km/h)132.5 mph (213.24 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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