Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/70r14 vs 195/75r14 Tire Comparison Side By Side
  195/70-14 195/75-14 Difference
Diameter inches (mm) 24.75 (628.6) 25.52 (648.1) 0.77 (19.5) 3.1%
Width inches (mm) 7.68 (195) 7.68 (195) 0 (0) 0%
Circum. inches (mm) 77.75 (1974.81) 80.16 (2036.07) 2.41 (61.26) 3.1%
Sidewall Height inches (mm) 5.37 (136.5) 5.76 (146.25) 0.38 (9.75) 7.1%
Revolutions per mile (km) 814.94 (506.38) 790.42 (491.14) -24.52 (-15.24) -3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.62 mph (33.19 km/h)
25 mph (40.23 km/h)25.78 mph (41.48 km/h)
30 mph (48.28 km/h)30.93 mph (49.78 km/h)
35 mph (56.33 km/h)36.09 mph (58.07 km/h)
40 mph (64.37 km/h)41.24 mph (66.37 km/h)
45 mph (72.42 km/h)46.4 mph (74.67 km/h)
50 mph (80.47 km/h)51.55 mph (82.96 km/h)
55 mph (88.51 km/h)56.71 mph (91.26 km/h)
60 mph (96.56 km/h)61.86 mph (99.56 km/h)
65 mph (104.61 km/h)67.02 mph (107.85 km/h)
70 mph (112.65 km/h)72.17 mph (116.15 km/h)
75 mph (120.7 km/h)77.33 mph (124.45 km/h)
80 mph (128.75 km/h)82.48 mph (132.74 km/h)
85 mph (136.79 km/h)87.64 mph (141.04 km/h)
90 mph (144.84 km/h)92.79 mph (149.33 km/h)
95 mph (152.89 km/h)97.95 mph (157.63 km/h)
100 mph (160.93 km/h)103.1 mph (165.93 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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