Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
135/70r16 vs 135/75r16 Tire Comparison Side By Side
  135/70-16 135/75-16 Difference
Diameter inches (mm) 23.44 (595.4) 23.97 (608.9) 0.53 (13.5) 2.3%
Width inches (mm) 5.31 (135) 5.31 (135) 0 (0) 0%
Circum. inches (mm) 73.64 (1870.5) 75.31 (1912.92) 1.67 (42.41) 2.3%
Sidewall Height inches (mm) 3.72 (94.5) 3.99 (101.25) 0.27 (6.75) 7.1%
Revolutions per mile (km) 860.38 (534.61) 841.3 (522.76) -19.08 (-11.85) -2.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.45 mph (32.92 km/h)
25 mph (40.23 km/h)25.57 mph (41.15 km/h)
30 mph (48.28 km/h)30.68 mph (49.38 km/h)
35 mph (56.33 km/h)35.79 mph (57.6 km/h)
40 mph (64.37 km/h)40.91 mph (65.83 km/h)
45 mph (72.42 km/h)46.02 mph (74.06 km/h)
50 mph (80.47 km/h)51.13 mph (82.29 km/h)
55 mph (88.51 km/h)56.25 mph (90.52 km/h)
60 mph (96.56 km/h)61.36 mph (98.75 km/h)
65 mph (104.61 km/h)66.47 mph (106.98 km/h)
70 mph (112.65 km/h)71.59 mph (115.21 km/h)
75 mph (120.7 km/h)76.7 mph (123.44 km/h)
80 mph (128.75 km/h)81.81 mph (131.67 km/h)
85 mph (136.79 km/h)86.93 mph (139.9 km/h)
90 mph (144.84 km/h)92.04 mph (148.13 km/h)
95 mph (152.89 km/h)97.15 mph (156.35 km/h)
100 mph (160.93 km/h)102.27 mph (164.58 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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