Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
150/60r16 vs 215/60r16 Tire Comparison Side By Side
  150/60-16 215/60-16 Difference
Diameter inches (mm) 23.09 (586.4) 26.16 (664.4) 3.07 (78) 13.3%
Width inches (mm) 5.91 (150) 8.46 (215) 2.56 (65) 43.3%
Circum. inches (mm) 72.53 (1842.23) 82.18 (2087.27) 9.65 (245.04) 13.3%
Sidewall Height inches (mm) 3.54 (90) 5.08 (129) 1.54 (39) 43.3%
Revolutions per mile (km) 873.58 (542.82) 771.03 (479.09) -102.56 (-63.73) -11.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)22.66 mph (36.47 km/h)
25 mph (40.23 km/h)28.33 mph (45.59 km/h)
30 mph (48.28 km/h)33.99 mph (54.7 km/h)
35 mph (56.33 km/h)39.66 mph (63.82 km/h)
40 mph (64.37 km/h)45.32 mph (72.94 km/h)
45 mph (72.42 km/h)50.99 mph (82.05 km/h)
50 mph (80.47 km/h)56.65 mph (91.17 km/h)
55 mph (88.51 km/h)62.32 mph (100.29 km/h)
60 mph (96.56 km/h)67.98 mph (109.4 km/h)
65 mph (104.61 km/h)73.65 mph (118.52 km/h)
70 mph (112.65 km/h)79.31 mph (127.64 km/h)
75 mph (120.7 km/h)84.98 mph (136.76 km/h)
80 mph (128.75 km/h)90.64 mph (145.87 km/h)
85 mph (136.79 km/h)96.31 mph (154.99 km/h)
90 mph (144.84 km/h)101.97 mph (164.11 km/h)
95 mph (152.89 km/h)107.64 mph (173.22 km/h)
100 mph (160.93 km/h)113.3 mph (182.34 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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