Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/40r22 vs 275/55r22 Tire Comparison Side By Side
  275/40-22 275/55-22 Difference
Diameter inches (mm) 30.66 (778.8) 33.91 (861.3) 3.25 (82.5) 10.6%
Width inches (mm) 10.83 (275) 10.83 (275) 0 (0) 0%
Circum. inches (mm) 96.33 (2446.67) 106.53 (2705.85) 10.2 (259.18) 10.6%
Sidewall Height inches (mm) 4.33 (110) 5.95 (151.25) 1.62 (41.25) 37.5%
Revolutions per mile (km) 657.77 (408.72) 594.76 (369.57) -63 (-39.15) -9.6%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)22.12 mph (35.6 km/h)
25 mph (40.23 km/h)27.65 mph (44.5 km/h)
30 mph (48.28 km/h)33.18 mph (53.39 km/h)
35 mph (56.33 km/h)38.71 mph (62.29 km/h)
40 mph (64.37 km/h)44.24 mph (71.19 km/h)
45 mph (72.42 km/h)49.77 mph (80.09 km/h)
50 mph (80.47 km/h)55.3 mph (88.99 km/h)
55 mph (88.51 km/h)60.83 mph (97.89 km/h)
60 mph (96.56 km/h)66.36 mph (106.79 km/h)
65 mph (104.61 km/h)71.89 mph (115.69 km/h)
70 mph (112.65 km/h)77.42 mph (124.59 km/h)
75 mph (120.7 km/h)82.94 mph (133.49 km/h)
80 mph (128.75 km/h)88.47 mph (142.39 km/h)
85 mph (136.79 km/h)94 mph (151.29 km/h)
90 mph (144.84 km/h)99.53 mph (160.18 km/h)
95 mph (152.89 km/h)105.06 mph (169.08 km/h)
100 mph (160.93 km/h)110.59 mph (177.98 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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