Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
280/80r16 vs 295/75r16 Tire Comparison Side By Side
  280/80-16 295/75-16 Difference
Diameter inches (mm) 33.64 (854.4) 33.42 (848.9) -0.22 (-5.5) -0.6%
Width inches (mm) 11.02 (280) 11.61 (295) 0.59 (15) 5.4%
Circum. inches (mm) 105.68 (2684.18) 105 (2666.9) -0.68 (-17.28) -0.6%
Sidewall Height inches (mm) 8.82 (224) 8.71 (221.25) -0.11 (-2.75) -1.2%
Revolutions per mile (km) 599.57 (372.55) 603.45 (374.97) 3.88 (2.41) 0.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.87 mph (31.98 km/h)
25 mph (40.23 km/h)24.84 mph (39.97 km/h)
30 mph (48.28 km/h)29.81 mph (47.97 km/h)
35 mph (56.33 km/h)34.77 mph (55.96 km/h)
40 mph (64.37 km/h)39.74 mph (63.96 km/h)
45 mph (72.42 km/h)44.71 mph (71.95 km/h)
50 mph (80.47 km/h)49.68 mph (79.95 km/h)
55 mph (88.51 km/h)54.65 mph (87.94 km/h)
60 mph (96.56 km/h)59.61 mph (95.94 km/h)
65 mph (104.61 km/h)64.58 mph (103.93 km/h)
70 mph (112.65 km/h)69.55 mph (111.93 km/h)
75 mph (120.7 km/h)74.52 mph (119.92 km/h)
80 mph (128.75 km/h)79.49 mph (127.92 km/h)
85 mph (136.79 km/h)84.45 mph (135.91 km/h)
90 mph (144.84 km/h)89.42 mph (143.91 km/h)
95 mph (152.89 km/h)94.39 mph (151.9 km/h)
100 mph (160.93 km/h)99.36 mph (159.9 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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