Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/25r26 vs 255/30r26 Tire Comparison Side By Side
  295/25-26 255/30-26 Difference
Diameter inches (mm) 31.81 (807.9) 32.02 (813.4) 0.22 (5.5) 0.7%
Width inches (mm) 11.61 (295) 10.04 (255) -1.57 (-40) -13.6%
Circum. inches (mm) 99.92 (2538.09) 100.61 (2555.37) 0.68 (17.28) 0.7%
Sidewall Height inches (mm) 2.9 (73.75) 3.01 (76.5) 0.11 (2.75) 3.7%
Revolutions per mile (km) 634.08 (394) 629.79 (391.33) -4.29 (-2.66) -0.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.14 mph (32.41 km/h)
25 mph (40.23 km/h)25.17 mph (40.51 km/h)
30 mph (48.28 km/h)30.2 mph (48.61 km/h)
35 mph (56.33 km/h)35.24 mph (56.71 km/h)
40 mph (64.37 km/h)40.27 mph (64.81 km/h)
45 mph (72.42 km/h)45.31 mph (72.91 km/h)
50 mph (80.47 km/h)50.34 mph (81.02 km/h)
55 mph (88.51 km/h)55.37 mph (89.12 km/h)
60 mph (96.56 km/h)60.41 mph (97.22 km/h)
65 mph (104.61 km/h)65.44 mph (105.32 km/h)
70 mph (112.65 km/h)70.48 mph (113.42 km/h)
75 mph (120.7 km/h)75.51 mph (121.52 km/h)
80 mph (128.75 km/h)80.54 mph (129.62 km/h)
85 mph (136.79 km/h)85.58 mph (137.73 km/h)
90 mph (144.84 km/h)90.61 mph (145.83 km/h)
95 mph (152.89 km/h)95.65 mph (153.93 km/h)
100 mph (160.93 km/h)100.68 mph (162.03 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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