Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/75r16 vs 33/12.5r16 Tire Comparison Side By Side
  295/75-16 33/12.5-16 Difference
Diameter inches (mm) 33.42 (848.9) 33.03 (838.88) -0.39 (-10.02) -1.2%
Width inches (mm) 11.61 (295) 12.52 (318) 0.91 (23) 7.8%
Circum. inches (mm) 105 (2666.9) 103.76 (2635.42) -1.24 (-31.48) -1.2%
Sidewall Height inches (mm) 8.71 (221.25) 8.51 (216.24) -0.2 (-5.01) -2.3%
Revolutions per mile (km) 603.45 (374.97) 610.66 (379.45) 7.21 (4.48) 1.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.76 mph (31.81 km/h)
25 mph (40.23 km/h)24.7 mph (39.76 km/h)
30 mph (48.28 km/h)29.65 mph (47.71 km/h)
35 mph (56.33 km/h)34.59 mph (55.66 km/h)
40 mph (64.37 km/h)39.53 mph (63.61 km/h)
45 mph (72.42 km/h)44.47 mph (71.57 km/h)
50 mph (80.47 km/h)49.41 mph (79.52 km/h)
55 mph (88.51 km/h)54.35 mph (87.47 km/h)
60 mph (96.56 km/h)59.29 mph (95.42 km/h)
65 mph (104.61 km/h)64.23 mph (103.37 km/h)
70 mph (112.65 km/h)69.17 mph (111.32 km/h)
75 mph (120.7 km/h)74.11 mph (119.28 km/h)
80 mph (128.75 km/h)79.06 mph (127.23 km/h)
85 mph (136.79 km/h)84 mph (135.18 km/h)
90 mph (144.84 km/h)88.94 mph (143.13 km/h)
95 mph (152.89 km/h)93.88 mph (151.08 km/h)
100 mph (160.93 km/h)98.82 mph (159.04 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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