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 140/70r16 Tire Comparison Side By Side
  130/70-16 140/70-16 Difference
Diameter inches (mm) 23.17 (588.4) 23.72 (602.4) 0.55 (14) 2.4%
Width inches (mm) 5.12 (130) 5.51 (140) 0.39 (10) 7.7%
Circum. inches (mm) 72.78 (1848.51) 74.51 (1892.5) 1.73 (43.98) 2.4%
Sidewall Height inches (mm) 3.58 (91) 3.86 (98) 0.28 (7) 7.7%
Revolutions per mile (km) 870.62 (540.97) 850.38 (528.4) -20.23 (-12.57) -2.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.48 mph (32.95 km/h)
25 mph (40.23 km/h)25.59 mph (41.19 km/h)
30 mph (48.28 km/h)30.71 mph (49.43 km/h)
35 mph (56.33 km/h)35.83 mph (57.67 km/h)
40 mph (64.37 km/h)40.95 mph (65.91 km/h)
45 mph (72.42 km/h)46.07 mph (74.14 km/h)
50 mph (80.47 km/h)51.19 mph (82.38 km/h)
55 mph (88.51 km/h)56.31 mph (90.62 km/h)
60 mph (96.56 km/h)61.43 mph (98.86 km/h)
65 mph (104.61 km/h)66.55 mph (107.1 km/h)
70 mph (112.65 km/h)71.67 mph (115.33 km/h)
75 mph (120.7 km/h)76.78 mph (123.57 km/h)
80 mph (128.75 km/h)81.9 mph (131.81 km/h)
85 mph (136.79 km/h)87.02 mph (140.05 km/h)
90 mph (144.84 km/h)92.14 mph (148.29 km/h)
95 mph (152.89 km/h)97.26 mph (156.53 km/h)
100 mph (160.93 km/h)102.38 mph (164.76 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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