Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
130/60r17 vs 150/70r17 Tire Comparison Side By Side
  130/60-17 150/70-17 Difference
Diameter inches (mm) 23.14 (587.8) 25.27 (641.8) 2.13 (54) 9.2%
Width inches (mm) 5.12 (130) 5.91 (150) 0.79 (20) 15.4%
Circum. inches (mm) 72.7 (1846.63) 79.38 (2016.27) 6.68 (169.65) 9.2%
Sidewall Height inches (mm) 3.07 (78) 4.13 (105) 1.06 (27) 34.6%
Revolutions per mile (km) 871.5 (541.53) 798.18 (495.96) -73.33 (-45.56) -8.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.84 mph (35.14 km/h)
25 mph (40.23 km/h)27.3 mph (43.93 km/h)
30 mph (48.28 km/h)32.76 mph (52.72 km/h)
35 mph (56.33 km/h)38.22 mph (61.5 km/h)
40 mph (64.37 km/h)43.67 mph (70.29 km/h)
45 mph (72.42 km/h)49.13 mph (79.07 km/h)
50 mph (80.47 km/h)54.59 mph (87.86 km/h)
55 mph (88.51 km/h)60.05 mph (96.65 km/h)
60 mph (96.56 km/h)65.51 mph (105.43 km/h)
65 mph (104.61 km/h)70.97 mph (114.22 km/h)
70 mph (112.65 km/h)76.43 mph (123 km/h)
75 mph (120.7 km/h)81.89 mph (131.79 km/h)
80 mph (128.75 km/h)87.35 mph (140.58 km/h)
85 mph (136.79 km/h)92.81 mph (149.36 km/h)
90 mph (144.84 km/h)98.27 mph (158.15 km/h)
95 mph (152.89 km/h)103.73 mph (166.93 km/h)
100 mph (160.93 km/h)109.19 mph (175.72 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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