Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
305/35r24 vs 295/35r24 Tire Comparison Side By Side
  305/35-24 295/35-24 Difference
Diameter inches (mm) 32.41 (823.1) 32.13 (816.1) -0.28 (-7) -0.9%
Width inches (mm) 12.01 (305) 11.61 (295) -0.39 (-10) -3.3%
Circum. inches (mm) 101.8 (2585.84) 100.94 (2563.85) -0.87 (-21.99) -0.9%
Sidewall Height inches (mm) 4.2 (106.75) 4.06 (103.25) -0.14 (-3.5) -3.3%
Revolutions per mile (km) 622.37 (386.72) 627.71 (390.04) 5.34 (3.32) 0.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.83 mph (31.91 km/h)
25 mph (40.23 km/h)24.79 mph (39.89 km/h)
30 mph (48.28 km/h)29.74 mph (47.87 km/h)
35 mph (56.33 km/h)34.7 mph (55.85 km/h)
40 mph (64.37 km/h)39.66 mph (63.83 km/h)
45 mph (72.42 km/h)44.62 mph (71.8 km/h)
50 mph (80.47 km/h)49.57 mph (79.78 km/h)
55 mph (88.51 km/h)54.53 mph (87.76 km/h)
60 mph (96.56 km/h)59.49 mph (95.74 km/h)
65 mph (104.61 km/h)64.45 mph (103.72 km/h)
70 mph (112.65 km/h)69.4 mph (111.7 km/h)
75 mph (120.7 km/h)74.36 mph (119.67 km/h)
80 mph (128.75 km/h)79.32 mph (127.65 km/h)
85 mph (136.79 km/h)84.28 mph (135.63 km/h)
90 mph (144.84 km/h)89.23 mph (143.61 km/h)
95 mph (152.89 km/h)94.19 mph (151.59 km/h)
100 mph (160.93 km/h)99.15 mph (159.57 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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