Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/70r14 vs 195/75r14 Tire Comparison Side By Side
  215/70-14 195/75-14 Difference
Diameter inches (mm) 25.85 (656.6) 25.52 (648.1) -0.33 (-8.5) -1.3%
Width inches (mm) 8.46 (215) 7.68 (195) -0.79 (-20) -9.3%
Circum. inches (mm) 81.21 (2062.77) 80.16 (2036.07) -1.05 (-26.7) -1.3%
Sidewall Height inches (mm) 5.93 (150.5) 5.76 (146.25) -0.17 (-4.25) -2.8%
Revolutions per mile (km) 780.19 (484.78) 790.42 (491.14) 10.23 (6.36) 1.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.74 mph (31.77 km/h)
25 mph (40.23 km/h)24.68 mph (39.71 km/h)
30 mph (48.28 km/h)29.61 mph (47.66 km/h)
35 mph (56.33 km/h)34.55 mph (55.6 km/h)
40 mph (64.37 km/h)39.48 mph (63.54 km/h)
45 mph (72.42 km/h)44.42 mph (71.48 km/h)
50 mph (80.47 km/h)49.35 mph (79.43 km/h)
55 mph (88.51 km/h)54.29 mph (87.37 km/h)
60 mph (96.56 km/h)59.22 mph (95.31 km/h)
65 mph (104.61 km/h)64.16 mph (103.25 km/h)
70 mph (112.65 km/h)69.09 mph (111.2 km/h)
75 mph (120.7 km/h)74.03 mph (119.14 km/h)
80 mph (128.75 km/h)78.96 mph (127.08 km/h)
85 mph (136.79 km/h)83.9 mph (135.02 km/h)
90 mph (144.84 km/h)88.83 mph (142.97 km/h)
95 mph (152.89 km/h)93.77 mph (150.91 km/h)
100 mph (160.93 km/h)98.71 mph (158.85 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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