Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
130/60r19 vs 130/65r19 Tire Comparison Side By Side
  130/60-19 130/65-19 Difference
Diameter inches (mm) 25.14 (638.6) 25.65 (651.6) 0.51 (13) 2%
Width inches (mm) 5.12 (130) 5.12 (130) 0 (0) 0%
Circum. inches (mm) 78.99 (2006.22) 80.59 (2047.06) 1.61 (40.84) 2%
Sidewall Height inches (mm) 3.07 (78) 3.33 (84.5) 0.26 (6.5) 8.3%
Revolutions per mile (km) 802.18 (498.45) 786.17 (488.5) -16 (-9.94) -2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.41 mph (32.84 km/h)
25 mph (40.23 km/h)25.51 mph (41.05 km/h)
30 mph (48.28 km/h)30.61 mph (49.26 km/h)
35 mph (56.33 km/h)35.71 mph (57.47 km/h)
40 mph (64.37 km/h)40.81 mph (65.68 km/h)
45 mph (72.42 km/h)45.92 mph (73.89 km/h)
50 mph (80.47 km/h)51.02 mph (82.11 km/h)
55 mph (88.51 km/h)56.12 mph (90.32 km/h)
60 mph (96.56 km/h)61.22 mph (98.53 km/h)
65 mph (104.61 km/h)66.32 mph (106.74 km/h)
70 mph (112.65 km/h)71.42 mph (114.95 km/h)
75 mph (120.7 km/h)76.53 mph (123.16 km/h)
80 mph (128.75 km/h)81.63 mph (131.37 km/h)
85 mph (136.79 km/h)86.73 mph (139.58 km/h)
90 mph (144.84 km/h)91.83 mph (147.79 km/h)
95 mph (152.89 km/h)96.93 mph (156 km/h)
100 mph (160.93 km/h)102.04 mph (164.21 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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