Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
135/70r19 vs 295/30r19 Tire Comparison Side By Side
  135/70-19 295/30-19 Difference
Diameter inches (mm) 26.44 (671.6) 25.97 (659.6) -0.47 (-12) -1.8%
Width inches (mm) 5.31 (135) 11.61 (295) 6.3 (160) 118.5%
Circum. inches (mm) 83.07 (2109.89) 81.58 (2072.19) -1.48 (-37.7) -1.8%
Sidewall Height inches (mm) 3.72 (94.5) 3.48 (88.5) -0.24 (-6) -6.3%
Revolutions per mile (km) 762.76 (473.96) 776.64 (482.58) 13.88 (8.62) 1.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.64 mph (31.61 km/h)
25 mph (40.23 km/h)24.55 mph (39.51 km/h)
30 mph (48.28 km/h)29.46 mph (47.42 km/h)
35 mph (56.33 km/h)34.37 mph (55.32 km/h)
40 mph (64.37 km/h)39.29 mph (63.22 km/h)
45 mph (72.42 km/h)44.2 mph (71.13 km/h)
50 mph (80.47 km/h)49.11 mph (79.03 km/h)
55 mph (88.51 km/h)54.02 mph (86.93 km/h)
60 mph (96.56 km/h)58.93 mph (94.84 km/h)
65 mph (104.61 km/h)63.84 mph (102.74 km/h)
70 mph (112.65 km/h)68.75 mph (110.64 km/h)
75 mph (120.7 km/h)73.66 mph (118.54 km/h)
80 mph (128.75 km/h)78.57 mph (126.45 km/h)
85 mph (136.79 km/h)83.48 mph (134.35 km/h)
90 mph (144.84 km/h)88.39 mph (142.25 km/h)
95 mph (152.89 km/h)93.3 mph (150.16 km/h)
100 mph (160.93 km/h)98.21 mph (158.06 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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