Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
195/75r16 vs 205/70r16 Tire Comparison Side By Side
  195/75-16 205/70-16 Difference
Diameter inches (mm) 27.52 (698.9) 27.3 (693.4) -0.22 (-5.5) -0.8%
Width inches (mm) 7.68 (195) 8.07 (205) 0.39 (10) 5.1%
Circum. inches (mm) 86.44 (2195.66) 85.76 (2178.38) -0.68 (-17.28) -0.8%
Sidewall Height inches (mm) 5.76 (146.25) 5.65 (143.5) -0.11 (-2.75) -1.9%
Revolutions per mile (km) 732.97 (455.44) 738.78 (459.06) 5.81 (3.61) 0.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.84 mph (31.93 km/h)
25 mph (40.23 km/h)24.8 mph (39.92 km/h)
30 mph (48.28 km/h)29.76 mph (47.9 km/h)
35 mph (56.33 km/h)34.72 mph (55.88 km/h)
40 mph (64.37 km/h)39.69 mph (63.87 km/h)
45 mph (72.42 km/h)44.65 mph (71.85 km/h)
50 mph (80.47 km/h)49.61 mph (79.83 km/h)
55 mph (88.51 km/h)54.57 mph (87.82 km/h)
60 mph (96.56 km/h)59.53 mph (95.8 km/h)
65 mph (104.61 km/h)64.49 mph (103.78 km/h)
70 mph (112.65 km/h)69.45 mph (111.77 km/h)
75 mph (120.7 km/h)74.41 mph (119.75 km/h)
80 mph (128.75 km/h)79.37 mph (127.73 km/h)
85 mph (136.79 km/h)84.33 mph (135.72 km/h)
90 mph (144.84 km/h)89.29 mph (143.7 km/h)
95 mph (152.89 km/h)94.25 mph (151.68 km/h)
100 mph (160.93 km/h)99.21 mph (159.67 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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