Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/45r19 vs 235/55r19 Tire Comparison Side By Side
  295/45-19 235/55-19 Difference
Diameter inches (mm) 29.45 (748.1) 29.18 (741.1) -0.28 (-7) -0.9%
Width inches (mm) 11.61 (295) 9.25 (235) -2.36 (-60) -20.3%
Circum. inches (mm) 92.53 (2350.23) 91.66 (2328.23) -0.87 (-21.99) -0.9%
Sidewall Height inches (mm) 5.23 (132.75) 5.09 (129.25) -0.14 (-3.5) -2.6%
Revolutions per mile (km) 684.76 (425.49) 691.23 (429.51) 6.47 (4.02) 0.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.81 mph (31.89 km/h)
25 mph (40.23 km/h)24.77 mph (39.86 km/h)
30 mph (48.28 km/h)29.72 mph (47.83 km/h)
35 mph (56.33 km/h)34.67 mph (55.8 km/h)
40 mph (64.37 km/h)39.63 mph (63.77 km/h)
45 mph (72.42 km/h)44.58 mph (71.74 km/h)
50 mph (80.47 km/h)49.53 mph (79.71 km/h)
55 mph (88.51 km/h)54.49 mph (87.69 km/h)
60 mph (96.56 km/h)59.44 mph (95.66 km/h)
65 mph (104.61 km/h)64.39 mph (103.63 km/h)
70 mph (112.65 km/h)69.35 mph (111.6 km/h)
75 mph (120.7 km/h)74.3 mph (119.57 km/h)
80 mph (128.75 km/h)79.25 mph (127.54 km/h)
85 mph (136.79 km/h)84.2 mph (135.51 km/h)
90 mph (144.84 km/h)89.16 mph (143.49 km/h)
95 mph (152.89 km/h)94.11 mph (151.46 km/h)
100 mph (160.93 km/h)99.06 mph (159.43 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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