Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
240/55r16 vs 245/95r16 Tire Comparison Side By Side
  240/55-16 245/95-16 Difference
Diameter inches (mm) 26.39 (670.4) 34.33 (871.9) 7.93 (201.5) 30.1%
Width inches (mm) 9.45 (240) 9.65 (245) 0.2 (5) 2.1%
Circum. inches (mm) 82.92 (2106.12) 107.84 (2739.15) 24.92 (633.03) 30.1%
Sidewall Height inches (mm) 5.2 (132) 9.16 (232.75) 3.97 (100.75) 76.3%
Revolutions per mile (km) 764.13 (474.81) 587.53 (365.08) -176.59 (-109.73) -23.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)26.01 mph (41.86 km/h)
25 mph (40.23 km/h)32.51 mph (52.33 km/h)
30 mph (48.28 km/h)39.02 mph (62.79 km/h)
35 mph (56.33 km/h)45.52 mph (73.26 km/h)
40 mph (64.37 km/h)52.02 mph (83.72 km/h)
45 mph (72.42 km/h)58.53 mph (94.19 km/h)
50 mph (80.47 km/h)65.03 mph (104.65 km/h)
55 mph (88.51 km/h)71.53 mph (115.12 km/h)
60 mph (96.56 km/h)78.03 mph (125.58 km/h)
65 mph (104.61 km/h)84.54 mph (136.05 km/h)
70 mph (112.65 km/h)91.04 mph (146.51 km/h)
75 mph (120.7 km/h)97.54 mph (156.98 km/h)
80 mph (128.75 km/h)104.05 mph (167.45 km/h)
85 mph (136.79 km/h)110.55 mph (177.91 km/h)
90 mph (144.84 km/h)117.05 mph (188.38 km/h)
95 mph (152.89 km/h)123.55 mph (198.84 km/h)
100 mph (160.93 km/h)130.06 mph (209.31 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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