Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/60r17 vs 285/70r17 Tire Comparison Side By Side
  275/60-17 285/70-17 Difference
Diameter inches (mm) 29.99 (761.8) 32.71 (830.8) 2.72 (69) 9.1%
Width inches (mm) 10.83 (275) 11.22 (285) 0.39 (10) 3.6%
Circum. inches (mm) 94.22 (2393.27) 102.76 (2610.04) 8.53 (216.77) 9.1%
Sidewall Height inches (mm) 6.5 (165) 7.85 (199.5) 1.36 (34.5) 20.9%
Revolutions per mile (km) 672.45 (417.84) 616.6 (383.14) -55.85 (-34.7) -8.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.81 mph (35.1 km/h)
25 mph (40.23 km/h)27.26 mph (43.88 km/h)
30 mph (48.28 km/h)32.72 mph (52.65 km/h)
35 mph (56.33 km/h)38.17 mph (61.43 km/h)
40 mph (64.37 km/h)43.62 mph (70.2 km/h)
45 mph (72.42 km/h)49.08 mph (78.98 km/h)
50 mph (80.47 km/h)54.53 mph (87.76 km/h)
55 mph (88.51 km/h)59.98 mph (96.53 km/h)
60 mph (96.56 km/h)65.43 mph (105.31 km/h)
65 mph (104.61 km/h)70.89 mph (114.08 km/h)
70 mph (112.65 km/h)76.34 mph (122.86 km/h)
75 mph (120.7 km/h)81.79 mph (131.63 km/h)
80 mph (128.75 km/h)87.25 mph (140.41 km/h)
85 mph (136.79 km/h)92.7 mph (149.18 km/h)
90 mph (144.84 km/h)98.15 mph (157.96 km/h)
95 mph (152.89 km/h)103.6 mph (166.74 km/h)
100 mph (160.93 km/h)109.06 mph (175.51 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
15691823196320502143221022842370249126112744285130453258342535323592381341204788
Better Fuel Economy Factory Ratios Increased Power

Most Popular 275/60-R17 Comparisons

To Top