Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/60r17 vs 195/50r19 Tire Comparison Side By Side
  195/60-17 195/50-19 Difference
Diameter inches (mm) 26.21 (665.8) 26.68 (677.6) 0.46 (11.8) 1.8%
Width inches (mm) 7.68 (195) 7.68 (195) 0 (0) 0%
Circum. inches (mm) 82.35 (2091.67) 83.81 (2128.74) 1.46 (37.07) 1.8%
Sidewall Height inches (mm) 4.61 (117) 3.84 (97.5) -0.77 (-19.5) -16.7%
Revolutions per mile (km) 769.41 (478.09) 756.01 (469.76) -13.4 (-8.33) -1.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.35 mph (32.76 km/h)
25 mph (40.23 km/h)25.44 mph (40.95 km/h)
30 mph (48.28 km/h)30.53 mph (49.14 km/h)
35 mph (56.33 km/h)35.62 mph (57.33 km/h)
40 mph (64.37 km/h)40.71 mph (65.51 km/h)
45 mph (72.42 km/h)45.8 mph (73.7 km/h)
50 mph (80.47 km/h)50.89 mph (81.89 km/h)
55 mph (88.51 km/h)55.97 mph (90.08 km/h)
60 mph (96.56 km/h)61.06 mph (98.27 km/h)
65 mph (104.61 km/h)66.15 mph (106.46 km/h)
70 mph (112.65 km/h)71.24 mph (114.65 km/h)
75 mph (120.7 km/h)76.33 mph (122.84 km/h)
80 mph (128.75 km/h)81.42 mph (131.03 km/h)
85 mph (136.79 km/h)86.51 mph (139.22 km/h)
90 mph (144.84 km/h)91.6 mph (147.41 km/h)
95 mph (152.89 km/h)96.68 mph (155.6 km/h)
100 mph (160.93 km/h)101.77 mph (163.79 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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