Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
175/75r16 vs 165/95r16 Tire Comparison Side By Side
  175/75-16 165/95-16 Difference
Diameter inches (mm) 26.33 (668.9) 28.34 (719.9) 2.01 (51) 7.6%
Width inches (mm) 6.89 (175) 6.5 (165) -0.39 (-10) -5.7%
Circum. inches (mm) 82.73 (2101.41) 89.04 (2261.63) 6.31 (160.22) 7.6%
Sidewall Height inches (mm) 5.17 (131.25) 6.17 (156.75) 1 (25.5) 19.4%
Revolutions per mile (km) 765.84 (475.87) 711.59 (442.16) -54.25 (-33.71) -7.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.52 mph (34.64 km/h)
25 mph (40.23 km/h)26.91 mph (43.3 km/h)
30 mph (48.28 km/h)32.29 mph (51.96 km/h)
35 mph (56.33 km/h)37.67 mph (60.62 km/h)
40 mph (64.37 km/h)43.05 mph (69.28 km/h)
45 mph (72.42 km/h)48.43 mph (77.94 km/h)
50 mph (80.47 km/h)53.81 mph (86.6 km/h)
55 mph (88.51 km/h)59.19 mph (95.26 km/h)
60 mph (96.56 km/h)64.57 mph (103.92 km/h)
65 mph (104.61 km/h)69.96 mph (112.58 km/h)
70 mph (112.65 km/h)75.34 mph (121.24 km/h)
75 mph (120.7 km/h)80.72 mph (129.9 km/h)
80 mph (128.75 km/h)86.1 mph (138.56 km/h)
85 mph (136.79 km/h)91.48 mph (147.22 km/h)
90 mph (144.84 km/h)96.86 mph (155.88 km/h)
95 mph (152.89 km/h)102.24 mph (164.54 km/h)
100 mph (160.93 km/h)107.62 mph (173.21 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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