Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/65r16 vs 275/60r16 Tire Comparison Side By Side
  275/65-16 275/60-16 Difference
Diameter inches (mm) 30.07 (763.9) 28.99 (736.4) -1.08 (-27.5) -3.6%
Width inches (mm) 10.83 (275) 10.83 (275) 0 (0) 0%
Circum. inches (mm) 94.48 (2399.86) 91.08 (2313.47) -3.4 (-86.39) -3.6%
Sidewall Height inches (mm) 7.04 (178.75) 6.5 (165) -0.54 (-13.75) -7.7%
Revolutions per mile (km) 670.6 (416.69) 695.64 (432.25) 25.04 (15.56) 3.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.28 mph (31.03 km/h)
25 mph (40.23 km/h)24.1 mph (38.79 km/h)
30 mph (48.28 km/h)28.92 mph (46.54 km/h)
35 mph (56.33 km/h)33.74 mph (54.3 km/h)
40 mph (64.37 km/h)38.56 mph (62.06 km/h)
45 mph (72.42 km/h)43.38 mph (69.81 km/h)
50 mph (80.47 km/h)48.2 mph (77.57 km/h)
55 mph (88.51 km/h)53.02 mph (85.33 km/h)
60 mph (96.56 km/h)57.84 mph (93.08 km/h)
65 mph (104.61 km/h)62.66 mph (100.84 km/h)
70 mph (112.65 km/h)67.48 mph (108.6 km/h)
75 mph (120.7 km/h)72.3 mph (116.36 km/h)
80 mph (128.75 km/h)77.12 mph (124.11 km/h)
85 mph (136.79 km/h)81.94 mph (131.87 km/h)
90 mph (144.84 km/h)86.76 mph (139.63 km/h)
95 mph (152.89 km/h)91.58 mph (147.38 km/h)
100 mph (160.93 km/h)96.4 mph (155.14 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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