Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
305/70r16 vs 295/75r16 Tire Comparison Side By Side
  305/70-16 295/75-16 Difference
Diameter inches (mm) 32.81 (833.4) 33.42 (848.9) 0.61 (15.5) 1.9%
Width inches (mm) 12.01 (305) 11.61 (295) -0.39 (-10) -3.3%
Circum. inches (mm) 103.08 (2618.2) 105 (2666.9) 1.92 (48.69) 1.9%
Sidewall Height inches (mm) 8.41 (213.5) 8.71 (221.25) 0.31 (7.75) 3.6%
Revolutions per mile (km) 614.67 (381.94) 603.45 (374.97) -11.22 (-6.97) -1.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.37 mph (32.79 km/h)
25 mph (40.23 km/h)25.46 mph (40.98 km/h)
30 mph (48.28 km/h)30.56 mph (49.18 km/h)
35 mph (56.33 km/h)35.65 mph (57.37 km/h)
40 mph (64.37 km/h)40.74 mph (65.57 km/h)
45 mph (72.42 km/h)45.84 mph (73.77 km/h)
50 mph (80.47 km/h)50.93 mph (81.96 km/h)
55 mph (88.51 km/h)56.02 mph (90.16 km/h)
60 mph (96.56 km/h)61.12 mph (98.36 km/h)
65 mph (104.61 km/h)66.21 mph (106.55 km/h)
70 mph (112.65 km/h)71.3 mph (114.75 km/h)
75 mph (120.7 km/h)76.39 mph (122.95 km/h)
80 mph (128.75 km/h)81.49 mph (131.14 km/h)
85 mph (136.79 km/h)86.58 mph (139.34 km/h)
90 mph (144.84 km/h)91.67 mph (147.54 km/h)
95 mph (152.89 km/h)96.77 mph (155.73 km/h)
100 mph (160.93 km/h)101.86 mph (163.93 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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