Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
255/85r16 vs 265/70r16 Tire Comparison Side By Side
  255/85-16 265/70-16 Difference
Diameter inches (mm) 33.07 (839.9) 30.61 (777.4) -2.46 (-62.5) -7.4%
Width inches (mm) 10.04 (255) 10.43 (265) 0.39 (10) 3.9%
Circum. inches (mm) 103.88 (2638.62) 96.15 (2442.27) -7.73 (-196.35) -7.4%
Sidewall Height inches (mm) 8.53 (216.75) 7.3 (185.5) -1.23 (-31.25) -14.4%
Revolutions per mile (km) 609.92 (378.98) 658.95 (409.45) 49.04 (30.47) 8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.51 mph (29.79 km/h)
25 mph (40.23 km/h)23.14 mph (37.24 km/h)
30 mph (48.28 km/h)27.77 mph (44.69 km/h)
35 mph (56.33 km/h)32.4 mph (52.14 km/h)
40 mph (64.37 km/h)37.02 mph (59.58 km/h)
45 mph (72.42 km/h)41.65 mph (67.03 km/h)
50 mph (80.47 km/h)46.28 mph (74.48 km/h)
55 mph (88.51 km/h)50.91 mph (81.93 km/h)
60 mph (96.56 km/h)55.54 mph (89.38 km/h)
65 mph (104.61 km/h)60.16 mph (96.82 km/h)
70 mph (112.65 km/h)64.79 mph (104.27 km/h)
75 mph (120.7 km/h)69.42 mph (111.72 km/h)
80 mph (128.75 km/h)74.05 mph (119.17 km/h)
85 mph (136.79 km/h)78.67 mph (126.62 km/h)
90 mph (144.84 km/h)83.3 mph (134.06 km/h)
95 mph (152.89 km/h)87.93 mph (141.51 km/h)
100 mph (160.93 km/h)92.56 mph (148.96 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
16771948209821912291236224402533266227902933304732543482366137753839407544035116
Better Fuel Economy Factory Ratios Increased Power

Most Popular 255/85-R16 Comparisons

To Top