Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/50r13 vs 195/60r14 Tire Comparison Side By Side
  195/50-13 195/60-14 Difference
Diameter inches (mm) 20.68 (525.2) 23.21 (589.6) 2.54 (64.4) 12.3%
Width inches (mm) 7.68 (195) 7.68 (195) 0 (0) 0%
Circum. inches (mm) 64.96 (1649.96) 72.92 (1852.28) 7.97 (202.32) 12.3%
Sidewall Height inches (mm) 3.84 (97.5) 4.61 (117) 0.77 (19.5) 20%
Revolutions per mile (km) 975.38 (606.07) 868.84 (539.87) -106.54 (-66.2) -10.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)22.45 mph (36.13 km/h)
25 mph (40.23 km/h)28.07 mph (45.17 km/h)
30 mph (48.28 km/h)33.68 mph (54.2 km/h)
35 mph (56.33 km/h)39.29 mph (63.23 km/h)
40 mph (64.37 km/h)44.9 mph (72.27 km/h)
45 mph (72.42 km/h)50.52 mph (81.3 km/h)
50 mph (80.47 km/h)56.13 mph (90.33 km/h)
55 mph (88.51 km/h)61.74 mph (99.37 km/h)
60 mph (96.56 km/h)67.36 mph (108.4 km/h)
65 mph (104.61 km/h)72.97 mph (117.43 km/h)
70 mph (112.65 km/h)78.58 mph (126.47 km/h)
75 mph (120.7 km/h)84.2 mph (135.5 km/h)
80 mph (128.75 km/h)89.81 mph (144.53 km/h)
85 mph (136.79 km/h)95.42 mph (153.57 km/h)
90 mph (144.84 km/h)101.04 mph (162.6 km/h)
95 mph (152.89 km/h)106.65 mph (171.64 km/h)
100 mph (160.93 km/h)112.26 mph (180.67 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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