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 295/40r19 Tire Comparison Side By Side
  295/45-19 295/40-19 Difference
Diameter inches (mm) 29.45 (748.1) 28.29 (718.6) -1.16 (-29.5) -3.9%
Width inches (mm) 11.61 (295) 11.61 (295) 0 (0) 0%
Circum. inches (mm) 92.53 (2350.23) 88.88 (2257.55) -3.65 (-92.68) -3.9%
Sidewall Height inches (mm) 5.23 (132.75) 4.65 (118) -0.58 (-14.75) -11.1%
Revolutions per mile (km) 684.76 (425.49) 712.87 (442.96) 28.11 (17.47) 4.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.21 mph (30.92 km/h)
25 mph (40.23 km/h)24.01 mph (38.65 km/h)
30 mph (48.28 km/h)28.82 mph (46.38 km/h)
35 mph (56.33 km/h)33.62 mph (54.11 km/h)
40 mph (64.37 km/h)38.42 mph (61.84 km/h)
45 mph (72.42 km/h)43.23 mph (69.56 km/h)
50 mph (80.47 km/h)48.03 mph (77.29 km/h)
55 mph (88.51 km/h)52.83 mph (85.02 km/h)
60 mph (96.56 km/h)57.63 mph (92.75 km/h)
65 mph (104.61 km/h)62.44 mph (100.48 km/h)
70 mph (112.65 km/h)67.24 mph (108.21 km/h)
75 mph (120.7 km/h)72.04 mph (115.94 km/h)
80 mph (128.75 km/h)76.85 mph (123.67 km/h)
85 mph (136.79 km/h)81.65 mph (131.4 km/h)
90 mph (144.84 km/h)86.45 mph (139.13 km/h)
95 mph (152.89 km/h)91.25 mph (146.86 km/h)
100 mph (160.93 km/h)96.06 mph (154.59 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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