Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/25r28 vs 255/25r28 Tire Comparison Side By Side
  295/25-28 255/25-28 Difference
Diameter inches (mm) 33.81 (858.7) 33.02 (838.7) -0.79 (-20) -2.3%
Width inches (mm) 11.61 (295) 10.04 (255) -1.57 (-40) -13.6%
Circum. inches (mm) 106.21 (2697.69) 103.73 (2634.85) -2.47 (-62.83) -2.3%
Sidewall Height inches (mm) 2.9 (73.75) 2.51 (63.75) -0.39 (-10) -13.6%
Revolutions per mile (km) 596.56 (370.69) 610.79 (379.53) 14.23 (8.84) 2.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.53 mph (31.44 km/h)
25 mph (40.23 km/h)24.42 mph (39.3 km/h)
30 mph (48.28 km/h)29.3 mph (47.16 km/h)
35 mph (56.33 km/h)34.18 mph (55.02 km/h)
40 mph (64.37 km/h)39.07 mph (62.87 km/h)
45 mph (72.42 km/h)43.95 mph (70.73 km/h)
50 mph (80.47 km/h)48.84 mph (78.59 km/h)
55 mph (88.51 km/h)53.72 mph (86.45 km/h)
60 mph (96.56 km/h)58.6 mph (94.31 km/h)
65 mph (104.61 km/h)63.49 mph (102.17 km/h)
70 mph (112.65 km/h)68.37 mph (110.03 km/h)
75 mph (120.7 km/h)73.25 mph (117.89 km/h)
80 mph (128.75 km/h)78.14 mph (125.75 km/h)
85 mph (136.79 km/h)83.02 mph (133.61 km/h)
90 mph (144.84 km/h)87.9 mph (141.47 km/h)
95 mph (152.89 km/h)92.79 mph (149.33 km/h)
100 mph (160.93 km/h)97.67 mph (157.19 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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