Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/70r16 vs 255/85r16 Tire Comparison Side By Side
  265/70-16 255/85-16 Difference
Diameter inches (mm) 30.61 (777.4) 33.07 (839.9) 2.46 (62.5) 8%
Width inches (mm) 10.43 (265) 10.04 (255) -0.39 (-10) -3.8%
Circum. inches (mm) 96.15 (2442.27) 103.88 (2638.62) 7.73 (196.35) 8%
Sidewall Height inches (mm) 7.3 (185.5) 8.53 (216.75) 1.23 (31.25) 16.8%
Revolutions per mile (km) 658.95 (409.45) 609.92 (378.98) -49.04 (-30.47) -7.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.61 mph (34.77 km/h)
25 mph (40.23 km/h)27.01 mph (43.47 km/h)
30 mph (48.28 km/h)32.41 mph (52.16 km/h)
35 mph (56.33 km/h)37.81 mph (60.86 km/h)
40 mph (64.37 km/h)43.22 mph (69.55 km/h)
45 mph (72.42 km/h)48.62 mph (78.24 km/h)
50 mph (80.47 km/h)54.02 mph (86.94 km/h)
55 mph (88.51 km/h)59.42 mph (95.63 km/h)
60 mph (96.56 km/h)64.82 mph (104.32 km/h)
65 mph (104.61 km/h)70.23 mph (113.02 km/h)
70 mph (112.65 km/h)75.63 mph (121.71 km/h)
75 mph (120.7 km/h)81.03 mph (130.4 km/h)
80 mph (128.75 km/h)86.43 mph (139.1 km/h)
85 mph (136.79 km/h)91.83 mph (147.79 km/h)
90 mph (144.84 km/h)97.24 mph (156.49 km/h)
95 mph (152.89 km/h)102.64 mph (165.18 km/h)
100 mph (160.93 km/h)108.04 mph (173.87 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
15521803194220282120218622592345246425822715282030123223338834943553377140754736
Better Fuel Economy Factory Ratios Increased Power

Most Popular 265/70-R16 Comparisons

To Top