Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/45r19 vs 295/30r19 Tire Comparison Side By Side
  295/45-19 295/30-19 Difference
Diameter inches (mm) 29.45 (748.1) 25.97 (659.6) -3.48 (-88.5) -11.8%
Width inches (mm) 11.61 (295) 11.61 (295) 0 (0) 0%
Circum. inches (mm) 92.53 (2350.23) 81.58 (2072.19) -10.95 (-278.03) -11.8%
Sidewall Height inches (mm) 5.23 (132.75) 3.48 (88.5) -1.74 (-44.25) -33.3%
Revolutions per mile (km) 684.76 (425.49) 776.64 (482.58) 91.88 (57.09) 13.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)17.63 mph (28.38 km/h)
25 mph (40.23 km/h)22.04 mph (35.47 km/h)
30 mph (48.28 km/h)26.45 mph (42.57 km/h)
35 mph (56.33 km/h)30.86 mph (49.66 km/h)
40 mph (64.37 km/h)35.27 mph (56.76 km/h)
45 mph (72.42 km/h)39.68 mph (63.85 km/h)
50 mph (80.47 km/h)44.09 mph (70.95 km/h)
55 mph (88.51 km/h)48.49 mph (78.04 km/h)
60 mph (96.56 km/h)52.9 mph (85.14 km/h)
65 mph (104.61 km/h)57.31 mph (92.23 km/h)
70 mph (112.65 km/h)61.72 mph (99.33 km/h)
75 mph (120.7 km/h)66.13 mph (106.42 km/h)
80 mph (128.75 km/h)70.54 mph (113.52 km/h)
85 mph (136.79 km/h)74.94 mph (120.61 km/h)
90 mph (144.84 km/h)79.35 mph (127.71 km/h)
95 mph (152.89 km/h)83.76 mph (134.8 km/h)
100 mph (160.93 km/h)88.17 mph (141.9 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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