Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/65r17 vs 295/70r17 Tire Comparison Side By Side
  275/65-17 295/70-17 Difference
Diameter inches (mm) 31.07 (789.3) 33.26 (844.8) 2.19 (55.5) 7%
Width inches (mm) 10.83 (275) 11.61 (295) 0.79 (20) 7.3%
Circum. inches (mm) 97.62 (2479.66) 104.49 (2654.02) 6.86 (174.36) 7%
Sidewall Height inches (mm) 7.04 (178.75) 8.13 (206.5) 1.09 (27.75) 15.5%
Revolutions per mile (km) 649.02 (403.28) 606.38 (376.79) -42.64 (-26.49) -6.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.41 mph (34.45 km/h)
25 mph (40.23 km/h)26.76 mph (43.06 km/h)
30 mph (48.28 km/h)32.11 mph (51.68 km/h)
35 mph (56.33 km/h)37.46 mph (60.29 km/h)
40 mph (64.37 km/h)42.81 mph (68.9 km/h)
45 mph (72.42 km/h)48.16 mph (77.51 km/h)
50 mph (80.47 km/h)53.52 mph (86.13 km/h)
55 mph (88.51 km/h)58.87 mph (94.74 km/h)
60 mph (96.56 km/h)64.22 mph (103.35 km/h)
65 mph (104.61 km/h)69.57 mph (111.96 km/h)
70 mph (112.65 km/h)74.92 mph (120.58 km/h)
75 mph (120.7 km/h)80.27 mph (129.19 km/h)
80 mph (128.75 km/h)85.63 mph (137.8 km/h)
85 mph (136.79 km/h)90.98 mph (146.41 km/h)
90 mph (144.84 km/h)96.33 mph (155.03 km/h)
95 mph (152.89 km/h)101.68 mph (163.64 km/h)
100 mph (160.93 km/h)107.03 mph (172.25 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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