Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/60r16 vs 265/70r16 Tire Comparison Side By Side
  275/60-16 265/70-16 Difference
Diameter inches (mm) 28.99 (736.4) 30.61 (777.4) 1.61 (41) 5.6%
Width inches (mm) 10.83 (275) 10.43 (265) -0.39 (-10) -3.6%
Circum. inches (mm) 91.08 (2313.47) 96.15 (2442.27) 5.07 (128.81) 5.6%
Sidewall Height inches (mm) 6.5 (165) 7.3 (185.5) 0.81 (20.5) 12.4%
Revolutions per mile (km) 695.64 (432.25) 658.95 (409.45) -36.69 (-22.8) -5.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.11 mph (33.98 km/h)
25 mph (40.23 km/h)26.39 mph (42.47 km/h)
30 mph (48.28 km/h)31.67 mph (50.97 km/h)
35 mph (56.33 km/h)36.95 mph (59.46 km/h)
40 mph (64.37 km/h)42.23 mph (67.96 km/h)
45 mph (72.42 km/h)47.51 mph (76.45 km/h)
50 mph (80.47 km/h)52.78 mph (84.95 km/h)
55 mph (88.51 km/h)58.06 mph (93.44 km/h)
60 mph (96.56 km/h)63.34 mph (101.94 km/h)
65 mph (104.61 km/h)68.62 mph (110.43 km/h)
70 mph (112.65 km/h)73.9 mph (118.93 km/h)
75 mph (120.7 km/h)79.18 mph (127.42 km/h)
80 mph (128.75 km/h)84.45 mph (135.92 km/h)
85 mph (136.79 km/h)89.73 mph (144.41 km/h)
90 mph (144.84 km/h)95.01 mph (152.91 km/h)
95 mph (152.89 km/h)100.29 mph (161.4 km/h)
100 mph (160.93 km/h)105.57 mph (169.89 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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