Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
226/60r16 vs 225/60r16 Tire Comparison Side By Side
  226/60-16 225/60-16 Difference
Diameter inches (mm) 26.68 (677.6) 26.63 (676.4) -0.05 (-1.2) -0.2%
Width inches (mm) 8.9 (226) 8.86 (225) -0.04 (-1) -0.4%
Circum. inches (mm) 83.81 (2128.74) 83.66 (2124.97) -0.15 (-3.77) -0.2%
Sidewall Height inches (mm) 5.34 (135.6) 5.31 (135) -0.02 (-0.6) -0.4%
Revolutions per mile (km) 756.01 (469.76) 757.35 (470.59) 1.34 (0.83) 0.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.96 mph (32.13 km/h)
25 mph (40.23 km/h)24.96 mph (40.16 km/h)
30 mph (48.28 km/h)29.95 mph (48.19 km/h)
35 mph (56.33 km/h)34.94 mph (56.23 km/h)
40 mph (64.37 km/h)39.93 mph (64.26 km/h)
45 mph (72.42 km/h)44.92 mph (72.29 km/h)
50 mph (80.47 km/h)49.91 mph (80.32 km/h)
55 mph (88.51 km/h)54.9 mph (88.36 km/h)
60 mph (96.56 km/h)59.89 mph (96.39 km/h)
65 mph (104.61 km/h)64.88 mph (104.42 km/h)
70 mph (112.65 km/h)69.88 mph (112.45 km/h)
75 mph (120.7 km/h)74.87 mph (120.49 km/h)
80 mph (128.75 km/h)79.86 mph (128.52 km/h)
85 mph (136.79 km/h)84.85 mph (136.55 km/h)
90 mph (144.84 km/h)89.84 mph (144.58 km/h)
95 mph (152.89 km/h)94.83 mph (152.62 km/h)
100 mph (160.93 km/h)99.82 mph (160.65 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
19272239241125182633271528052911305932073371350237404002420743384412468350605880
Better Fuel Economy Factory Ratios Increased Power

To Top