Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/75r16 vs 285/70r16 Tire Comparison Side By Side
  265/75-16 285/70-16 Difference
Diameter inches (mm) 31.65 (803.9) 31.71 (805.4) 0.06 (1.5) 0.2%
Width inches (mm) 10.43 (265) 11.22 (285) 0.79 (20) 7.5%
Circum. inches (mm) 99.43 (2525.53) 99.62 (2530.24) 0.19 (4.71) 0.2%
Sidewall Height inches (mm) 7.82 (198.75) 7.85 (199.5) 0.03 (0.75) 0.4%
Revolutions per mile (km) 637.23 (395.96) 636.04 (395.22) -1.19 (-0.74) -0.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.04 mph (32.25 km/h)
25 mph (40.23 km/h)25.05 mph (40.31 km/h)
30 mph (48.28 km/h)30.06 mph (48.37 km/h)
35 mph (56.33 km/h)35.07 mph (56.43 km/h)
40 mph (64.37 km/h)40.07 mph (64.49 km/h)
45 mph (72.42 km/h)45.08 mph (72.56 km/h)
50 mph (80.47 km/h)50.09 mph (80.62 km/h)
55 mph (88.51 km/h)55.1 mph (88.68 km/h)
60 mph (96.56 km/h)60.11 mph (96.74 km/h)
65 mph (104.61 km/h)65.12 mph (104.8 km/h)
70 mph (112.65 km/h)70.13 mph (112.86 km/h)
75 mph (120.7 km/h)75.14 mph (120.93 km/h)
80 mph (128.75 km/h)80.15 mph (128.99 km/h)
85 mph (136.79 km/h)85.16 mph (137.05 km/h)
90 mph (144.84 km/h)90.17 mph (145.11 km/h)
95 mph (152.89 km/h)95.18 mph (153.17 km/h)
100 mph (160.93 km/h)100.19 mph (161.23 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
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