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 295/70r16 Tire Comparison Side By Side
  275/70-16 295/70-16 Difference
Diameter inches (mm) 31.16 (791.4) 32.26 (819.4) 1.1 (28) 3.5%
Width inches (mm) 10.83 (275) 11.61 (295) 0.79 (20) 7.3%
Circum. inches (mm) 97.88 (2486.26) 101.35 (2574.22) 3.46 (87.96) 3.5%
Sidewall Height inches (mm) 7.58 (192.5) 8.13 (206.5) 0.55 (14) 7.3%
Revolutions per mile (km) 647.3 (402.21) 625.18 (388.47) -22.12 (-13.74) -3.4%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.71 mph (33.33 km/h)
25 mph (40.23 km/h)25.88 mph (41.66 km/h)
30 mph (48.28 km/h)31.06 mph (49.99 km/h)
35 mph (56.33 km/h)36.24 mph (58.32 km/h)
40 mph (64.37 km/h)41.42 mph (66.65 km/h)
45 mph (72.42 km/h)46.59 mph (74.98 km/h)
50 mph (80.47 km/h)51.77 mph (83.31 km/h)
55 mph (88.51 km/h)56.95 mph (91.65 km/h)
60 mph (96.56 km/h)62.12 mph (99.98 km/h)
65 mph (104.61 km/h)67.3 mph (108.31 km/h)
70 mph (112.65 km/h)72.48 mph (116.64 km/h)
75 mph (120.7 km/h)77.65 mph (124.97 km/h)
80 mph (128.75 km/h)82.83 mph (133.3 km/h)
85 mph (136.79 km/h)88.01 mph (141.63 km/h)
90 mph (144.84 km/h)93.18 mph (149.97 km/h)
95 mph (152.89 km/h)98.36 mph (158.3 km/h)
100 mph (160.93 km/h)103.54 mph (166.63 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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