Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/70r17 vs 295/75r17 Tire Comparison Side By Side
  265/70-17 295/75-17 Difference
Diameter inches (mm) 31.61 (802.8) 34.42 (874.3) 2.81 (71.5) 8.9%
Width inches (mm) 10.43 (265) 11.61 (295) 1.18 (30) 11.3%
Circum. inches (mm) 99.29 (2522.07) 108.14 (2746.69) 8.84 (224.62) 8.9%
Sidewall Height inches (mm) 7.3 (185.5) 8.71 (221.25) 1.41 (35.75) 19.3%
Revolutions per mile (km) 638.1 (396.5) 585.92 (364.07) -52.18 (-32.43) -8.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.78 mph (35.05 km/h)
25 mph (40.23 km/h)27.23 mph (43.82 km/h)
30 mph (48.28 km/h)32.67 mph (52.58 km/h)
35 mph (56.33 km/h)38.12 mph (61.34 km/h)
40 mph (64.37 km/h)43.56 mph (70.11 km/h)
45 mph (72.42 km/h)49.01 mph (78.87 km/h)
50 mph (80.47 km/h)54.45 mph (87.63 km/h)
55 mph (88.51 km/h)59.9 mph (96.4 km/h)
60 mph (96.56 km/h)65.34 mph (105.16 km/h)
65 mph (104.61 km/h)70.79 mph (113.92 km/h)
70 mph (112.65 km/h)76.23 mph (122.69 km/h)
75 mph (120.7 km/h)81.68 mph (131.45 km/h)
80 mph (128.75 km/h)87.13 mph (140.21 km/h)
85 mph (136.79 km/h)92.57 mph (148.98 km/h)
90 mph (144.84 km/h)98.02 mph (157.74 km/h)
95 mph (152.89 km/h)103.46 mph (166.5 km/h)
100 mph (160.93 km/h)108.91 mph (175.27 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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