Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/45r17 vs 295/50r17 Tire Comparison Side By Side
  295/45-17 295/50-17 Difference
Diameter inches (mm) 27.45 (697.3) 28.61 (726.8) 1.16 (29.5) 4.2%
Width inches (mm) 11.61 (295) 11.61 (295) 0 (0) 0%
Circum. inches (mm) 86.25 (2190.63) 89.89 (2283.31) 3.65 (92.68) 4.2%
Sidewall Height inches (mm) 5.23 (132.75) 5.81 (147.5) 0.58 (14.75) 11.1%
Revolutions per mile (km) 734.65 (456.49) 704.83 (437.96) -29.82 (-18.53) -4.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.85 mph (33.55 km/h)
25 mph (40.23 km/h)26.06 mph (41.94 km/h)
30 mph (48.28 km/h)31.27 mph (50.32 km/h)
35 mph (56.33 km/h)36.48 mph (58.71 km/h)
40 mph (64.37 km/h)41.69 mph (67.1 km/h)
45 mph (72.42 km/h)46.9 mph (75.48 km/h)
50 mph (80.47 km/h)52.12 mph (83.87 km/h)
55 mph (88.51 km/h)57.33 mph (92.26 km/h)
60 mph (96.56 km/h)62.54 mph (100.65 km/h)
65 mph (104.61 km/h)67.75 mph (109.03 km/h)
70 mph (112.65 km/h)72.96 mph (117.42 km/h)
75 mph (120.7 km/h)78.17 mph (125.81 km/h)
80 mph (128.75 km/h)83.38 mph (134.19 km/h)
85 mph (136.79 km/h)88.6 mph (142.58 km/h)
90 mph (144.84 km/h)93.81 mph (150.97 km/h)
95 mph (152.89 km/h)99.02 mph (159.36 km/h)
100 mph (160.93 km/h)104.23 mph (167.74 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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