Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/60r18 vs 200/35r22 Tire Comparison Side By Side
  205/60-18 200/35-22 Difference
Diameter inches (mm) 27.69 (703.2) 27.51 (698.8) -0.17 (-4.4) -0.6%
Width inches (mm) 8.07 (205) 7.87 (200) -0.2 (-5) -2.4%
Circum. inches (mm) 86.98 (2209.17) 86.43 (2195.34) -0.54 (-13.82) -0.6%
Sidewall Height inches (mm) 4.84 (123) 2.76 (70) -2.09 (-53) -43.1%
Revolutions per mile (km) 728.48 (452.66) 733.07 (455.51) 4.59 (2.85) 0.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.87 mph (31.99 km/h)
25 mph (40.23 km/h)24.84 mph (39.98 km/h)
30 mph (48.28 km/h)29.81 mph (47.98 km/h)
35 mph (56.33 km/h)34.78 mph (55.97 km/h)
40 mph (64.37 km/h)39.75 mph (63.97 km/h)
45 mph (72.42 km/h)44.72 mph (71.97 km/h)
50 mph (80.47 km/h)49.69 mph (79.96 km/h)
55 mph (88.51 km/h)54.66 mph (87.96 km/h)
60 mph (96.56 km/h)59.62 mph (95.96 km/h)
65 mph (104.61 km/h)64.59 mph (103.95 km/h)
70 mph (112.65 km/h)69.56 mph (111.95 km/h)
75 mph (120.7 km/h)74.53 mph (119.95 km/h)
80 mph (128.75 km/h)79.5 mph (127.94 km/h)
85 mph (136.79 km/h)84.47 mph (135.94 km/h)
90 mph (144.84 km/h)89.44 mph (143.93 km/h)
95 mph (152.89 km/h)94.41 mph (151.93 km/h)
100 mph (160.93 km/h)99.37 mph (159.93 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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