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 305/75r16 Tire Comparison Side By Side
  295/75-16 305/75-16 Difference
Diameter inches (mm) 33.42 (848.9) 34.01 (863.9) 0.59 (15) 1.8%
Width inches (mm) 11.61 (295) 12.01 (305) 0.39 (10) 3.4%
Circum. inches (mm) 105 (2666.9) 106.85 (2714.02) 1.86 (47.12) 1.8%
Sidewall Height inches (mm) 8.71 (221.25) 9.01 (228.75) 0.3 (7.5) 3.4%
Revolutions per mile (km) 603.45 (374.97) 592.97 (368.46) -10.48 (-6.51) -1.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.35 mph (32.76 km/h)
25 mph (40.23 km/h)25.44 mph (40.94 km/h)
30 mph (48.28 km/h)30.53 mph (49.13 km/h)
35 mph (56.33 km/h)35.62 mph (57.32 km/h)
40 mph (64.37 km/h)40.71 mph (65.51 km/h)
45 mph (72.42 km/h)45.8 mph (73.7 km/h)
50 mph (80.47 km/h)50.88 mph (81.89 km/h)
55 mph (88.51 km/h)55.97 mph (90.08 km/h)
60 mph (96.56 km/h)61.06 mph (98.27 km/h)
65 mph (104.61 km/h)66.15 mph (106.46 km/h)
70 mph (112.65 km/h)71.24 mph (114.64 km/h)
75 mph (120.7 km/h)76.33 mph (122.83 km/h)
80 mph (128.75 km/h)81.41 mph (131.02 km/h)
85 mph (136.79 km/h)86.5 mph (139.21 km/h)
90 mph (144.84 km/h)91.59 mph (147.4 km/h)
95 mph (152.89 km/h)96.68 mph (155.59 km/h)
100 mph (160.93 km/h)101.77 mph (163.78 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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