Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
32/10.5r17 vs 285/60r17 Tire Comparison Side By Side
  32/10.5-17 285/60-17 Difference
Diameter inches (mm) 31.93 (810.94) 30.46 (773.8) -1.46 (-37.14) -4.6%
Width inches (mm) 10.51 (267) 11.22 (285) 0.71 (18) 6.7%
Circum. inches (mm) 100.3 (2547.64) 95.71 (2430.96) -4.59 (-116.68) -4.6%
Sidewall Height inches (mm) 7.46 (189.57) 6.73 (171) -0.73 (-18.57) -9.8%
Revolutions per mile (km) 631.7 (392.52) 662.02 (411.36) 30.32 (18.84) 4.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.08 mph (30.71 km/h)
25 mph (40.23 km/h)23.86 mph (38.39 km/h)
30 mph (48.28 km/h)28.63 mph (46.07 km/h)
35 mph (56.33 km/h)33.4 mph (53.75 km/h)
40 mph (64.37 km/h)38.17 mph (61.43 km/h)
45 mph (72.42 km/h)42.94 mph (69.1 km/h)
50 mph (80.47 km/h)47.71 mph (76.78 km/h)
55 mph (88.51 km/h)52.48 mph (84.46 km/h)
60 mph (96.56 km/h)57.25 mph (92.14 km/h)
65 mph (104.61 km/h)62.02 mph (99.82 km/h)
70 mph (112.65 km/h)66.79 mph (107.49 km/h)
75 mph (120.7 km/h)71.57 mph (115.17 km/h)
80 mph (128.75 km/h)76.34 mph (122.85 km/h)
85 mph (136.79 km/h)81.11 mph (130.53 km/h)
90 mph (144.84 km/h)85.88 mph (138.21 km/h)
95 mph (152.89 km/h)90.65 mph (145.89 km/h)
100 mph (160.93 km/h)95.42 mph (153.56 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
16851957210822012301237324522545267428032946306132693498367837923857409344235140
Better Fuel Economy Factory Ratios Increased Power

Most Popular 32/10.5-R17 Comparisons

To Top