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 195/65r17 Tire Comparison Side By Side
  195/60-17 195/65-17 Difference
Diameter inches (mm) 26.21 (665.8) 26.98 (685.3) 0.77 (19.5) 2.9%
Width inches (mm) 7.68 (195) 7.68 (195) 0 (0) 0%
Circum. inches (mm) 82.35 (2091.67) 84.76 (2152.93) 2.41 (61.26) 2.9%
Sidewall Height inches (mm) 4.61 (117) 4.99 (126.75) 0.38 (9.75) 8.3%
Revolutions per mile (km) 769.41 (478.09) 747.51 (464.48) -21.89 (-13.6) -2.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.59 mph (33.13 km/h)
25 mph (40.23 km/h)25.73 mph (41.41 km/h)
30 mph (48.28 km/h)30.88 mph (49.69 km/h)
35 mph (56.33 km/h)36.03 mph (57.98 km/h)
40 mph (64.37 km/h)41.17 mph (66.26 km/h)
45 mph (72.42 km/h)46.32 mph (74.54 km/h)
50 mph (80.47 km/h)51.46 mph (82.82 km/h)
55 mph (88.51 km/h)56.61 mph (91.11 km/h)
60 mph (96.56 km/h)61.76 mph (99.39 km/h)
65 mph (104.61 km/h)66.9 mph (107.67 km/h)
70 mph (112.65 km/h)72.05 mph (115.95 km/h)
75 mph (120.7 km/h)77.2 mph (124.24 km/h)
80 mph (128.75 km/h)82.34 mph (132.52 km/h)
85 mph (136.79 km/h)87.49 mph (140.8 km/h)
90 mph (144.84 km/h)92.64 mph (149.08 km/h)
95 mph (152.89 km/h)97.78 mph (157.37 km/h)
100 mph (160.93 km/h)102.93 mph (165.65 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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