Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
165/40r16 vs 195/35r16 Tire Comparison Side By Side
  165/40-16 195/35-16 Difference
Diameter inches (mm) 21.2 (538.4) 21.37 (542.9) 0.18 (4.5) 0.8%
Width inches (mm) 6.5 (165) 7.68 (195) 1.18 (30) 18.2%
Circum. inches (mm) 66.59 (1691.43) 67.15 (1705.57) 0.56 (14.14) 0.8%
Sidewall Height inches (mm) 2.6 (66) 2.69 (68.25) 0.09 (2.25) 3.4%
Revolutions per mile (km) 951.47 (591.21) 943.58 (586.31) -7.89 (-4.9) -0.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.17 mph (32.46 km/h)
25 mph (40.23 km/h)25.21 mph (40.57 km/h)
30 mph (48.28 km/h)30.25 mph (48.68 km/h)
35 mph (56.33 km/h)35.29 mph (56.8 km/h)
40 mph (64.37 km/h)40.33 mph (64.91 km/h)
45 mph (72.42 km/h)45.38 mph (73.03 km/h)
50 mph (80.47 km/h)50.42 mph (81.14 km/h)
55 mph (88.51 km/h)55.46 mph (89.25 km/h)
60 mph (96.56 km/h)60.5 mph (97.37 km/h)
65 mph (104.61 km/h)65.54 mph (105.48 km/h)
70 mph (112.65 km/h)70.59 mph (113.6 km/h)
75 mph (120.7 km/h)75.63 mph (121.71 km/h)
80 mph (128.75 km/h)80.67 mph (129.82 km/h)
85 mph (136.79 km/h)85.71 mph (137.94 km/h)
90 mph (144.84 km/h)90.75 mph (146.05 km/h)
95 mph (152.89 km/h)95.79 mph (154.17 km/h)
100 mph (160.93 km/h)100.84 mph (162.28 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
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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