Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
175/75r16 vs 175/95r16 Tire Comparison Side By Side
  175/75-16 175/95-16 Difference
Diameter inches (mm) 26.33 (668.9) 29.09 (738.9) 2.76 (70) 10.5%
Width inches (mm) 6.89 (175) 6.89 (175) 0 (0) 0%
Circum. inches (mm) 82.73 (2101.41) 91.39 (2321.32) 8.66 (219.91) 10.5%
Sidewall Height inches (mm) 5.17 (131.25) 6.55 (166.25) 1.38 (35) 26.7%
Revolutions per mile (km) 765.84 (475.87) 693.29 (430.79) -72.55 (-45.08) -9.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)22.09 mph (35.56 km/h)
25 mph (40.23 km/h)27.62 mph (44.44 km/h)
30 mph (48.28 km/h)33.14 mph (53.33 km/h)
35 mph (56.33 km/h)38.66 mph (62.22 km/h)
40 mph (64.37 km/h)44.19 mph (71.11 km/h)
45 mph (72.42 km/h)49.71 mph (80 km/h)
50 mph (80.47 km/h)55.23 mph (88.89 km/h)
55 mph (88.51 km/h)60.76 mph (97.78 km/h)
60 mph (96.56 km/h)66.28 mph (106.67 km/h)
65 mph (104.61 km/h)71.8 mph (115.55 km/h)
70 mph (112.65 km/h)77.33 mph (124.44 km/h)
75 mph (120.7 km/h)82.85 mph (133.33 km/h)
80 mph (128.75 km/h)88.37 mph (142.22 km/h)
85 mph (136.79 km/h)93.9 mph (151.11 km/h)
90 mph (144.84 km/h)99.42 mph (160 km/h)
95 mph (152.89 km/h)104.94 mph (168.89 km/h)
100 mph (160.93 km/h)110.46 mph (177.78 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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