Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
200/50r17 vs 260/40r17 Tire Comparison Side By Side
  200/50-17 260/40-17 Difference
Diameter inches (mm) 24.87 (631.8) 25.19 (639.8) 0.31 (8) 1.3%
Width inches (mm) 7.87 (200) 10.24 (260) 2.36 (60) 30%
Circum. inches (mm) 78.14 (1984.86) 79.13 (2009.99) 0.99 (25.13) 1.3%
Sidewall Height inches (mm) 3.94 (100) 4.09 (104) 0.16 (4) 4%
Revolutions per mile (km) 810.81 (503.81) 800.67 (497.51) -10.14 (-6.3) -1.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.25 mph (32.59 km/h)
25 mph (40.23 km/h)25.32 mph (40.74 km/h)
30 mph (48.28 km/h)30.38 mph (48.89 km/h)
35 mph (56.33 km/h)35.44 mph (57.04 km/h)
40 mph (64.37 km/h)40.51 mph (65.19 km/h)
45 mph (72.42 km/h)45.57 mph (73.34 km/h)
50 mph (80.47 km/h)50.63 mph (81.49 km/h)
55 mph (88.51 km/h)55.7 mph (89.63 km/h)
60 mph (96.56 km/h)60.76 mph (97.78 km/h)
65 mph (104.61 km/h)65.82 mph (105.93 km/h)
70 mph (112.65 km/h)70.89 mph (114.08 km/h)
75 mph (120.7 km/h)75.95 mph (122.23 km/h)
80 mph (128.75 km/h)81.01 mph (130.38 km/h)
85 mph (136.79 km/h)86.08 mph (138.53 km/h)
90 mph (144.84 km/h)91.14 mph (146.68 km/h)
95 mph (152.89 km/h)96.2 mph (154.82 km/h)
100 mph (160.93 km/h)101.27 mph (162.97 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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