Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
245/55r16 vs 205/55r16 Tire Comparison Side By Side
  245/55-16 205/55-16 Difference
Diameter inches (mm) 26.61 (675.9) 24.88 (631.9) -1.73 (-44) -6.5%
Width inches (mm) 9.65 (245) 8.07 (205) -1.57 (-40) -16.3%
Circum. inches (mm) 83.6 (2123.4) 78.16 (1985.17) -5.44 (-138.23) -6.5%
Sidewall Height inches (mm) 5.31 (134.75) 4.44 (112.75) -0.87 (-22) -16.3%
Revolutions per mile (km) 757.91 (470.94) 810.68 (503.73) 52.77 (32.79) 7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.7 mph (30.09 km/h)
25 mph (40.23 km/h)23.37 mph (37.61 km/h)
30 mph (48.28 km/h)28.05 mph (45.14 km/h)
35 mph (56.33 km/h)32.72 mph (52.66 km/h)
40 mph (64.37 km/h)37.4 mph (60.18 km/h)
45 mph (72.42 km/h)42.07 mph (67.71 km/h)
50 mph (80.47 km/h)46.75 mph (75.23 km/h)
55 mph (88.51 km/h)51.42 mph (82.75 km/h)
60 mph (96.56 km/h)56.09 mph (90.27 km/h)
65 mph (104.61 km/h)60.77 mph (97.8 km/h)
70 mph (112.65 km/h)65.44 mph (105.32 km/h)
75 mph (120.7 km/h)70.12 mph (112.84 km/h)
80 mph (128.75 km/h)74.79 mph (120.37 km/h)
85 mph (136.79 km/h)79.47 mph (127.89 km/h)
90 mph (144.84 km/h)84.14 mph (135.41 km/h)
95 mph (152.89 km/h)88.82 mph (142.94 km/h)
100 mph (160.93 km/h)93.49 mph (150.46 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
20632397258126952818290630023116327534333608374940034284450446444723501354176294
Better Fuel Economy Factory Ratios Increased Power

Most Popular 245/55-R16 Comparisons

To Top