Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
110/80r17 vs 120/80r17 Tire Comparison Side By Side
  110/80-17 120/80-17 Difference
Diameter inches (mm) 23.93 (607.8) 24.56 (623.8) 0.63 (16) 2.6%
Width inches (mm) 4.33 (110) 4.72 (120) 0.39 (10) 9.1%
Circum. inches (mm) 75.18 (1909.46) 77.15 (1959.73) 1.98 (50.27) 2.6%
Sidewall Height inches (mm) 3.46 (88) 3.78 (96) 0.31 (8) 9.1%
Revolutions per mile (km) 842.83 (523.71) 821.21 (510.27) -21.62 (-13.43) -2.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.53 mph (33.03 km/h)
25 mph (40.23 km/h)25.66 mph (41.29 km/h)
30 mph (48.28 km/h)30.79 mph (49.55 km/h)
35 mph (56.33 km/h)35.92 mph (57.81 km/h)
40 mph (64.37 km/h)41.05 mph (66.07 km/h)
45 mph (72.42 km/h)46.18 mph (74.33 km/h)
50 mph (80.47 km/h)51.32 mph (82.59 km/h)
55 mph (88.51 km/h)56.45 mph (90.84 km/h)
60 mph (96.56 km/h)61.58 mph (99.1 km/h)
65 mph (104.61 km/h)66.71 mph (107.36 km/h)
70 mph (112.65 km/h)71.84 mph (115.62 km/h)
75 mph (120.7 km/h)76.97 mph (123.88 km/h)
80 mph (128.75 km/h)82.11 mph (132.14 km/h)
85 mph (136.79 km/h)87.24 mph (140.4 km/h)
90 mph (144.84 km/h)92.37 mph (148.65 km/h)
95 mph (152.89 km/h)97.5 mph (156.91 km/h)
100 mph (160.93 km/h)102.63 mph (165.17 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
20902428261427302855294430413157331734773655379740554340456247044784507854876376
Better Fuel Economy Factory Ratios Increased Power

Most Popular 110/80-R17 Comparisons

To Top