Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/75r15 vs 265/75r15 Tire Comparison Side By Side
  295/75-15 265/75-15 Difference
Diameter inches (mm) 32.42 (823.5) 30.65 (778.5) -1.77 (-45) -5.5%
Width inches (mm) 11.61 (295) 10.43 (265) -1.18 (-30) -10.2%
Circum. inches (mm) 101.85 (2587.1) 96.29 (2445.73) -5.57 (-141.37) -5.5%
Sidewall Height inches (mm) 8.71 (221.25) 7.82 (198.75) -0.89 (-22.5) -10.2%
Revolutions per mile (km) 622.06 (386.53) 658.02 (408.88) 35.96 (22.34) 5.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.91 mph (30.43 km/h)
25 mph (40.23 km/h)23.63 mph (38.04 km/h)
30 mph (48.28 km/h)28.36 mph (45.64 km/h)
35 mph (56.33 km/h)33.09 mph (53.25 km/h)
40 mph (64.37 km/h)37.81 mph (60.86 km/h)
45 mph (72.42 km/h)42.54 mph (68.46 km/h)
50 mph (80.47 km/h)47.27 mph (76.07 km/h)
55 mph (88.51 km/h)51.99 mph (83.68 km/h)
60 mph (96.56 km/h)56.72 mph (91.28 km/h)
65 mph (104.61 km/h)61.45 mph (98.89 km/h)
70 mph (112.65 km/h)66.17 mph (106.5 km/h)
75 mph (120.7 km/h)70.9 mph (114.11 km/h)
80 mph (128.75 km/h)75.63 mph (121.71 km/h)
85 mph (136.79 km/h)80.36 mph (129.32 km/h)
90 mph (144.84 km/h)85.08 mph (136.93 km/h)
95 mph (152.89 km/h)89.81 mph (144.53 km/h)
100 mph (160.93 km/h)94.54 mph (152.14 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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