Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/40r24 vs 33/12.5r24 Tire Comparison Side By Side
  295/40-24 33/12.5-24 Difference
Diameter inches (mm) 33.29 (845.6) 33.01 (838.56) -0.28 (-7.04) -0.8%
Width inches (mm) 11.61 (295) 12.52 (318) 0.91 (23) 7.8%
Circum. inches (mm) 104.59 (2656.53) 103.72 (2634.41) -0.87 (-22.12) -0.8%
Sidewall Height inches (mm) 4.65 (118) 4.51 (114.48) -0.14 (-3.52) -3%
Revolutions per mile (km) 605.81 (376.43) 610.89 (379.59) 5.09 (3.16) 0.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.83 mph (31.92 km/h)
25 mph (40.23 km/h)24.79 mph (39.9 km/h)
30 mph (48.28 km/h)29.75 mph (47.88 km/h)
35 mph (56.33 km/h)34.71 mph (55.86 km/h)
40 mph (64.37 km/h)39.67 mph (63.84 km/h)
45 mph (72.42 km/h)44.63 mph (71.82 km/h)
50 mph (80.47 km/h)49.58 mph (79.8 km/h)
55 mph (88.51 km/h)54.54 mph (87.78 km/h)
60 mph (96.56 km/h)59.5 mph (95.76 km/h)
65 mph (104.61 km/h)64.46 mph (103.74 km/h)
70 mph (112.65 km/h)69.42 mph (111.72 km/h)
75 mph (120.7 km/h)74.38 mph (119.7 km/h)
80 mph (128.75 km/h)79.33 mph (127.68 km/h)
85 mph (136.79 km/h)84.29 mph (135.66 km/h)
90 mph (144.84 km/h)89.25 mph (143.64 km/h)
95 mph (152.89 km/h)94.21 mph (151.62 km/h)
100 mph (160.93 km/h)99.17 mph (159.59 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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