Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
255/30r22 vs 295/25r22 Tire Comparison Side By Side
  255/30-22 295/25-22 Difference
Diameter inches (mm) 28.02 (711.8) 27.81 (706.3) -0.22 (-5.5) -0.8%
Width inches (mm) 10.04 (255) 11.61 (295) 1.57 (40) 15.7%
Circum. inches (mm) 88.04 (2236.19) 87.36 (2218.91) -0.68 (-17.28) -0.8%
Sidewall Height inches (mm) 3.01 (76.5) 2.9 (73.75) -0.11 (-2.75) -3.6%
Revolutions per mile (km) 719.68 (447.19) 725.29 (450.67) 5.6 (3.48) 0.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.85 mph (31.94 km/h)
25 mph (40.23 km/h)24.81 mph (39.92 km/h)
30 mph (48.28 km/h)29.77 mph (47.91 km/h)
35 mph (56.33 km/h)34.73 mph (55.89 km/h)
40 mph (64.37 km/h)39.69 mph (63.88 km/h)
45 mph (72.42 km/h)44.65 mph (71.86 km/h)
50 mph (80.47 km/h)49.61 mph (79.85 km/h)
55 mph (88.51 km/h)54.58 mph (87.83 km/h)
60 mph (96.56 km/h)59.54 mph (95.81 km/h)
65 mph (104.61 km/h)64.5 mph (103.8 km/h)
70 mph (112.65 km/h)69.46 mph (111.78 km/h)
75 mph (120.7 km/h)74.42 mph (119.77 km/h)
80 mph (128.75 km/h)79.38 mph (127.75 km/h)
85 mph (136.79 km/h)84.34 mph (135.74 km/h)
90 mph (144.84 km/h)89.3 mph (143.72 km/h)
95 mph (152.89 km/h)94.27 mph (151.71 km/h)
100 mph (160.93 km/h)99.23 mph (159.69 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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