Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
255/65r16 vs 245/70r16 Tire Comparison Side By Side
  255/65-16 245/70-16 Difference
Diameter inches (mm) 29.05 (737.9) 29.5 (749.4) 0.45 (11.5) 1.6%
Width inches (mm) 10.04 (255) 9.65 (245) -0.39 (-10) -3.9%
Circum. inches (mm) 91.27 (2318.18) 92.69 (2354.31) 1.42 (36.13) 1.6%
Sidewall Height inches (mm) 6.53 (165.75) 6.75 (171.5) 0.23 (5.75) 3.5%
Revolutions per mile (km) 694.23 (431.37) 683.57 (424.75) -10.65 (-6.62) -1.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.31 mph (32.69 km/h)
25 mph (40.23 km/h)25.39 mph (40.86 km/h)
30 mph (48.28 km/h)30.47 mph (49.03 km/h)
35 mph (56.33 km/h)35.55 mph (57.2 km/h)
40 mph (64.37 km/h)40.62 mph (65.38 km/h)
45 mph (72.42 km/h)45.7 mph (73.55 km/h)
50 mph (80.47 km/h)50.78 mph (81.72 km/h)
55 mph (88.51 km/h)55.86 mph (89.89 km/h)
60 mph (96.56 km/h)60.94 mph (98.07 km/h)
65 mph (104.61 km/h)66.01 mph (106.24 km/h)
70 mph (112.65 km/h)71.09 mph (114.41 km/h)
75 mph (120.7 km/h)76.17 mph (122.58 km/h)
80 mph (128.75 km/h)81.25 mph (130.75 km/h)
85 mph (136.79 km/h)86.32 mph (138.93 km/h)
90 mph (144.84 km/h)91.4 mph (147.1 km/h)
95 mph (152.89 km/h)96.48 mph (155.27 km/h)
100 mph (160.93 km/h)101.56 mph (163.44 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
17402021217622732376245025322628276128943042316133753612379739163982422745675308
Better Fuel Economy Factory Ratios Increased Power

Most Popular 255/65-R16 Comparisons

To Top