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 205/44r16 Tire Comparison Side By Side
  215/35-16 205/44-16 Difference
Diameter inches (mm) 21.93 (556.9) 23.1 (586.8) 1.18 (29.9) 5.4%
Width inches (mm) 8.46 (215) 8.07 (205) -0.39 (-10) -4.7%
Circum. inches (mm) 68.88 (1749.55) 72.58 (1843.49) 3.7 (93.93) 5.4%
Sidewall Height inches (mm) 2.96 (75.25) 3.55 (90.2) 0.59 (14.95) 19.9%
Revolutions per mile (km) 919.86 (571.57) 872.99 (542.45) -46.87 (-29.12) -5.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.07 mph (33.92 km/h)
25 mph (40.23 km/h)26.34 mph (42.39 km/h)
30 mph (48.28 km/h)31.61 mph (50.87 km/h)
35 mph (56.33 km/h)36.88 mph (59.35 km/h)
40 mph (64.37 km/h)42.15 mph (67.83 km/h)
45 mph (72.42 km/h)47.42 mph (76.31 km/h)
50 mph (80.47 km/h)52.68 mph (84.79 km/h)
55 mph (88.51 km/h)57.95 mph (93.27 km/h)
60 mph (96.56 km/h)63.22 mph (101.75 km/h)
65 mph (104.61 km/h)68.49 mph (110.22 km/h)
70 mph (112.65 km/h)73.76 mph (118.7 km/h)
75 mph (120.7 km/h)79.03 mph (127.18 km/h)
80 mph (128.75 km/h)84.3 mph (135.66 km/h)
85 mph (136.79 km/h)89.56 mph (144.14 km/h)
90 mph (144.84 km/h)94.83 mph (152.62 km/h)
95 mph (152.89 km/h)100.1 mph (161.1 km/h)
100 mph (160.93 km/h)105.37 mph (169.58 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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