Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
130/70r16 vs 150/70r15 Tire Comparison Side By Side
  130/70-16 150/70-15 Difference
Diameter inches (mm) 23.17 (588.4) 23.27 (591) 0.1 (2.6) 0.4%
Width inches (mm) 5.12 (130) 5.91 (150) 0.79 (20) 15.4%
Circum. inches (mm) 72.78 (1848.51) 73.1 (1856.68) 0.32 (8.17) 0.4%
Sidewall Height inches (mm) 3.58 (91) 4.13 (105) 0.55 (14) 15.4%
Revolutions per mile (km) 870.62 (540.97) 866.79 (538.59) -3.83 (-2.38) -0.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.09 mph (32.33 km/h)
25 mph (40.23 km/h)25.11 mph (40.41 km/h)
30 mph (48.28 km/h)30.13 mph (48.49 km/h)
35 mph (56.33 km/h)35.15 mph (56.58 km/h)
40 mph (64.37 km/h)40.18 mph (64.66 km/h)
45 mph (72.42 km/h)45.2 mph (72.74 km/h)
50 mph (80.47 km/h)50.22 mph (80.82 km/h)
55 mph (88.51 km/h)55.24 mph (88.91 km/h)
60 mph (96.56 km/h)60.27 mph (96.99 km/h)
65 mph (104.61 km/h)65.29 mph (105.07 km/h)
70 mph (112.65 km/h)70.31 mph (113.15 km/h)
75 mph (120.7 km/h)75.33 mph (121.23 km/h)
80 mph (128.75 km/h)80.35 mph (129.32 km/h)
85 mph (136.79 km/h)85.38 mph (137.4 km/h)
90 mph (144.84 km/h)90.4 mph (145.48 km/h)
95 mph (152.89 km/h)95.42 mph (153.56 km/h)
100 mph (160.93 km/h)100.44 mph (161.65 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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