Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/55r16 vs 225/55r16 Tire Comparison Side By Side
  205/55-16 225/55-16 Difference
Diameter inches (mm) 24.88 (631.9) 25.74 (653.9) 0.87 (22) 3.5%
Width inches (mm) 8.07 (205) 8.86 (225) 0.79 (20) 9.8%
Circum. inches (mm) 78.16 (1985.17) 80.88 (2054.29) 2.72 (69.12) 3.5%
Sidewall Height inches (mm) 4.44 (112.75) 4.87 (123.75) 0.43 (11) 9.8%
Revolutions per mile (km) 810.68 (503.73) 783.41 (486.79) -27.27 (-16.95) -3.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.7 mph (33.31 km/h)
25 mph (40.23 km/h)25.87 mph (41.63 km/h)
30 mph (48.28 km/h)31.04 mph (49.96 km/h)
35 mph (56.33 km/h)36.22 mph (58.29 km/h)
40 mph (64.37 km/h)41.39 mph (66.62 km/h)
45 mph (72.42 km/h)46.57 mph (74.94 km/h)
50 mph (80.47 km/h)51.74 mph (83.27 km/h)
55 mph (88.51 km/h)56.91 mph (91.6 km/h)
60 mph (96.56 km/h)62.09 mph (99.92 km/h)
65 mph (104.61 km/h)67.26 mph (108.25 km/h)
70 mph (112.65 km/h)72.44 mph (116.58 km/h)
75 mph (120.7 km/h)77.61 mph (124.9 km/h)
80 mph (128.75 km/h)82.79 mph (133.23 km/h)
85 mph (136.79 km/h)87.96 mph (141.56 km/h)
90 mph (144.84 km/h)93.13 mph (149.88 km/h)
95 mph (152.89 km/h)98.31 mph (158.21 km/h)
100 mph (160.93 km/h)103.48 mph (166.54 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
19942316249426042723280829013012316433173487362238684140435244884564484452346083
Better Fuel Economy Factory Ratios Increased Power

Most Popular 205/55-R16 Comparisons

To Top