Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
110/70r16 vs 140/70r14 Tire Comparison Side By Side
  110/70-16 140/70-14 Difference
Diameter inches (mm) 22.06 (560.4) 21.72 (551.6) -0.35 (-8.8) -1.6%
Width inches (mm) 4.33 (110) 5.51 (140) 1.18 (30) 27.3%
Circum. inches (mm) 69.31 (1760.55) 68.22 (1732.9) -1.09 (-27.65) -1.6%
Sidewall Height inches (mm) 3.03 (77) 3.86 (98) 0.83 (21) 27.3%
Revolutions per mile (km) 914.12 (568) 928.7 (577.07) 14.58 (9.06) 1.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.69 mph (31.68 km/h)
25 mph (40.23 km/h)24.61 mph (39.6 km/h)
30 mph (48.28 km/h)29.53 mph (47.52 km/h)
35 mph (56.33 km/h)34.45 mph (55.44 km/h)
40 mph (64.37 km/h)39.37 mph (63.36 km/h)
45 mph (72.42 km/h)44.29 mph (71.28 km/h)
50 mph (80.47 km/h)49.21 mph (79.2 km/h)
55 mph (88.51 km/h)54.14 mph (87.12 km/h)
60 mph (96.56 km/h)59.06 mph (95.04 km/h)
65 mph (104.61 km/h)63.98 mph (102.96 km/h)
70 mph (112.65 km/h)68.9 mph (110.89 km/h)
75 mph (120.7 km/h)73.82 mph (118.81 km/h)
80 mph (128.75 km/h)78.74 mph (126.73 km/h)
85 mph (136.79 km/h)83.67 mph (134.65 km/h)
90 mph (144.84 km/h)88.59 mph (142.57 km/h)
95 mph (152.89 km/h)93.51 mph (150.49 km/h)
100 mph (160.93 km/h)98.43 mph (158.41 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
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
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