Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
265/40r19 vs 295/85r16 Tire Comparison Side By Side
  265/40-19 295/85-16 Difference
Diameter inches (mm) 27.35 (694.6) 35.74 (907.9) 8.4 (213.3) 30.7%
Width inches (mm) 10.43 (265) 11.61 (295) 1.18 (30) 11.3%
Circum. inches (mm) 85.91 (2182.15) 112.29 (2852.25) 26.38 (670.1) 30.7%
Sidewall Height inches (mm) 4.17 (106) 9.87 (250.75) 5.7 (144.75) 136.6%
Revolutions per mile (km) 737.5 (458.26) 564.24 (350.6) -173.27 (-107.66) -23.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)26.14 mph (42.07 km/h)
25 mph (40.23 km/h)32.68 mph (52.59 km/h)
30 mph (48.28 km/h)39.21 mph (63.11 km/h)
35 mph (56.33 km/h)45.75 mph (73.62 km/h)
40 mph (64.37 km/h)52.28 mph (84.14 km/h)
45 mph (72.42 km/h)58.82 mph (94.66 km/h)
50 mph (80.47 km/h)65.35 mph (105.18 km/h)
55 mph (88.51 km/h)71.89 mph (115.7 km/h)
60 mph (96.56 km/h)78.42 mph (126.21 km/h)
65 mph (104.61 km/h)84.96 mph (136.73 km/h)
70 mph (112.65 km/h)91.5 mph (147.25 km/h)
75 mph (120.7 km/h)98.03 mph (157.77 km/h)
80 mph (128.75 km/h)104.57 mph (168.28 km/h)
85 mph (136.79 km/h)111.1 mph (178.8 km/h)
90 mph (144.84 km/h)117.64 mph (189.32 km/h)
95 mph (152.89 km/h)124.17 mph (199.84 km/h)
100 mph (160.93 km/h)130.71 mph (210.36 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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