Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
220/70r14 vs 235/50r17 Tire Comparison Side By Side
  220/70-14 235/50-17 Difference
Diameter inches (mm) 26.13 (663.6) 26.25 (666.8) 0.13 (3.2) 0.5%
Width inches (mm) 8.66 (220) 9.25 (235) 0.59 (15) 6.8%
Circum. inches (mm) 82.08 (2084.76) 82.47 (2094.81) 0.4 (10.05) 0.5%
Sidewall Height inches (mm) 6.06 (154) 4.63 (117.5) -1.44 (-36.5) -23.7%
Revolutions per mile (km) 771.96 (479.67) 768.25 (477.37) -3.7 (-2.3) -0.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.1 mph (32.34 km/h)
25 mph (40.23 km/h)25.12 mph (40.43 km/h)
30 mph (48.28 km/h)30.14 mph (48.51 km/h)
35 mph (56.33 km/h)35.17 mph (56.6 km/h)
40 mph (64.37 km/h)40.19 mph (64.68 km/h)
45 mph (72.42 km/h)45.22 mph (72.77 km/h)
50 mph (80.47 km/h)50.24 mph (80.86 km/h)
55 mph (88.51 km/h)55.27 mph (88.94 km/h)
60 mph (96.56 km/h)60.29 mph (97.03 km/h)
65 mph (104.61 km/h)65.31 mph (105.11 km/h)
70 mph (112.65 km/h)70.34 mph (113.2 km/h)
75 mph (120.7 km/h)75.36 mph (121.28 km/h)
80 mph (128.75 km/h)80.39 mph (129.37 km/h)
85 mph (136.79 km/h)85.41 mph (137.45 km/h)
90 mph (144.84 km/h)90.43 mph (145.54 km/h)
95 mph (152.89 km/h)95.46 mph (153.63 km/h)
100 mph (160.93 km/h)100.48 mph (161.71 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
19552271244625542671275428452953310332533419355237944060426844014476475051335965
Better Fuel Economy Factory Ratios Increased Power

Most Popular 220/70-R14 Comparisons

To Top