Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/30r19 vs 295/30r19 Tire Comparison Side By Side
  265/30-19 295/30-19 Difference
Diameter inches (mm) 25.26 (641.6) 25.97 (659.6) 0.71 (18) 2.8%
Width inches (mm) 10.43 (265) 11.61 (295) 1.18 (30) 11.3%
Circum. inches (mm) 79.36 (2015.65) 81.58 (2072.19) 2.23 (56.55) 2.8%
Sidewall Height inches (mm) 3.13 (79.5) 3.48 (88.5) 0.35 (9) 11.3%
Revolutions per mile (km) 798.43 (496.12) 776.64 (482.58) -21.79 (-13.54) -2.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.56 mph (33.09 km/h)
25 mph (40.23 km/h)25.7 mph (41.36 km/h)
30 mph (48.28 km/h)30.84 mph (49.63 km/h)
35 mph (56.33 km/h)35.98 mph (57.91 km/h)
40 mph (64.37 km/h)41.12 mph (66.18 km/h)
45 mph (72.42 km/h)46.26 mph (74.45 km/h)
50 mph (80.47 km/h)51.4 mph (82.72 km/h)
55 mph (88.51 km/h)56.54 mph (91 km/h)
60 mph (96.56 km/h)61.68 mph (99.27 km/h)
65 mph (104.61 km/h)66.82 mph (107.54 km/h)
70 mph (112.65 km/h)71.96 mph (115.81 km/h)
75 mph (120.7 km/h)77.1 mph (124.09 km/h)
80 mph (128.75 km/h)82.24 mph (132.36 km/h)
85 mph (136.79 km/h)87.38 mph (140.63 km/h)
90 mph (144.84 km/h)92.52 mph (148.9 km/h)
95 mph (152.89 km/h)97.67 mph (157.18 km/h)
100 mph (160.93 km/h)102.81 mph (165.45 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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