Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
130/90r16 vs 100/90r19 Tire Comparison Side By Side
  130/90-16 100/90-19 Difference
Diameter inches (mm) 25.21 (640.4) 26.09 (662.6) 0.87 (22.2) 3.5%
Width inches (mm) 5.12 (130) 3.94 (100) -1.18 (-30) -23.1%
Circum. inches (mm) 79.21 (2011.88) 81.95 (2081.62) 2.75 (69.74) 3.5%
Sidewall Height inches (mm) 4.61 (117) 3.54 (90) -1.06 (-27) -23.1%
Revolutions per mile (km) 799.92 (497.05) 773.12 (480.39) -26.8 (-16.65) -3.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.69 mph (33.3 km/h)
25 mph (40.23 km/h)25.87 mph (41.63 km/h)
30 mph (48.28 km/h)31.04 mph (49.95 km/h)
35 mph (56.33 km/h)36.21 mph (58.28 km/h)
40 mph (64.37 km/h)41.39 mph (66.61 km/h)
45 mph (72.42 km/h)46.56 mph (74.93 km/h)
50 mph (80.47 km/h)51.73 mph (83.26 km/h)
55 mph (88.51 km/h)56.91 mph (91.58 km/h)
60 mph (96.56 km/h)62.08 mph (99.91 km/h)
65 mph (104.61 km/h)67.25 mph (108.23 km/h)
70 mph (112.65 km/h)72.43 mph (116.56 km/h)
75 mph (120.7 km/h)77.6 mph (124.89 km/h)
80 mph (128.75 km/h)82.77 mph (133.21 km/h)
85 mph (136.79 km/h)87.95 mph (141.54 km/h)
90 mph (144.84 km/h)93.12 mph (149.86 km/h)
95 mph (152.89 km/h)98.29 mph (158.19 km/h)
100 mph (160.93 km/h)103.47 mph (166.51 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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