Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
285/70r17 vs 265/80r16 Tire Comparison Side By Side
  285/70-17 265/80-16 Difference
Diameter inches (mm) 32.71 (830.8) 32.69 (830.4) -0.02 (-0.4) -0%
Width inches (mm) 11.22 (285) 10.43 (265) -0.79 (-20) -7%
Circum. inches (mm) 102.76 (2610.04) 102.71 (2608.78) -0.05 (-1.26) -0%
Sidewall Height inches (mm) 7.85 (199.5) 8.35 (212) 0.49 (12.5) 6.3%
Revolutions per mile (km) 616.6 (383.14) 616.9 (383.32) 0.3 (0.18) 0%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.99 mph (32.17 km/h)
25 mph (40.23 km/h)24.99 mph (40.21 km/h)
30 mph (48.28 km/h)29.99 mph (48.26 km/h)
35 mph (56.33 km/h)34.98 mph (56.3 km/h)
40 mph (64.37 km/h)39.98 mph (64.34 km/h)
45 mph (72.42 km/h)44.98 mph (72.39 km/h)
50 mph (80.47 km/h)49.98 mph (80.43 km/h)
55 mph (88.51 km/h)54.97 mph (88.47 km/h)
60 mph (96.56 km/h)59.97 mph (96.51 km/h)
65 mph (104.61 km/h)64.97 mph (104.56 km/h)
70 mph (112.65 km/h)69.97 mph (112.6 km/h)
75 mph (120.7 km/h)74.96 mph (120.64 km/h)
80 mph (128.75 km/h)79.96 mph (128.69 km/h)
85 mph (136.79 km/h)84.96 mph (136.73 km/h)
90 mph (144.84 km/h)89.96 mph (144.77 km/h)
95 mph (152.89 km/h)94.95 mph (152.81 km/h)
100 mph (160.93 km/h)99.95 mph (160.86 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
15701824196420512144221122852372249226122746285330463260342735343594381441224790
Better Fuel Economy Factory Ratios Increased Power

Most Popular 285/70-R17 Comparisons

To Top