Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/70r16 vs 295/75r16 Tire Comparison Side By Side
  275/70-16 295/75-16 Difference
Diameter inches (mm) 31.16 (791.4) 33.42 (848.9) 2.26 (57.5) 7.3%
Width inches (mm) 10.83 (275) 11.61 (295) 0.79 (20) 7.3%
Circum. inches (mm) 97.88 (2486.26) 105 (2666.9) 7.11 (180.64) 7.3%
Sidewall Height inches (mm) 7.58 (192.5) 8.71 (221.25) 1.13 (28.75) 14.9%
Revolutions per mile (km) 647.3 (402.21) 603.45 (374.97) -43.84 (-27.24) -6.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.45 mph (34.53 km/h)
25 mph (40.23 km/h)26.82 mph (43.16 km/h)
30 mph (48.28 km/h)32.18 mph (51.79 km/h)
35 mph (56.33 km/h)37.54 mph (60.42 km/h)
40 mph (64.37 km/h)42.91 mph (69.05 km/h)
45 mph (72.42 km/h)48.27 mph (77.68 km/h)
50 mph (80.47 km/h)53.63 mph (86.31 km/h)
55 mph (88.51 km/h)59 mph (94.95 km/h)
60 mph (96.56 km/h)64.36 mph (103.58 km/h)
65 mph (104.61 km/h)69.72 mph (112.21 km/h)
70 mph (112.65 km/h)75.09 mph (120.84 km/h)
75 mph (120.7 km/h)80.45 mph (129.47 km/h)
80 mph (128.75 km/h)85.81 mph (138.1 km/h)
85 mph (136.79 km/h)91.18 mph (146.73 km/h)
90 mph (144.84 km/h)96.54 mph (155.36 km/h)
95 mph (152.89 km/h)101.9 mph (164 km/h)
100 mph (160.93 km/h)107.27 mph (172.63 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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