Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
220/60r16 vs 215/60r16 Tire Comparison Side By Side
  220/60-16 215/60-16 Difference
Diameter inches (mm) 26.39 (670.4) 26.16 (664.4) -0.24 (-6) -0.9%
Width inches (mm) 8.66 (220) 8.46 (215) -0.2 (-5) -2.3%
Circum. inches (mm) 82.92 (2106.12) 82.18 (2087.27) -0.74 (-18.85) -0.9%
Sidewall Height inches (mm) 5.2 (132) 5.08 (129) -0.12 (-3) -2.3%
Revolutions per mile (km) 764.13 (474.81) 771.03 (479.09) 6.9 (4.29) 0.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.82 mph (31.9 km/h)
25 mph (40.23 km/h)24.78 mph (39.87 km/h)
30 mph (48.28 km/h)29.73 mph (47.85 km/h)
35 mph (56.33 km/h)34.69 mph (55.82 km/h)
40 mph (64.37 km/h)39.64 mph (63.8 km/h)
45 mph (72.42 km/h)44.6 mph (71.77 km/h)
50 mph (80.47 km/h)49.55 mph (79.75 km/h)
55 mph (88.51 km/h)54.51 mph (87.72 km/h)
60 mph (96.56 km/h)59.46 mph (95.7 km/h)
65 mph (104.61 km/h)64.42 mph (103.67 km/h)
70 mph (112.65 km/h)69.37 mph (111.65 km/h)
75 mph (120.7 km/h)74.33 mph (119.62 km/h)
80 mph (128.75 km/h)79.28 mph (127.6 km/h)
85 mph (136.79 km/h)84.24 mph (135.57 km/h)
90 mph (144.84 km/h)89.19 mph (143.54 km/h)
95 mph (152.89 km/h)94.15 mph (151.52 km/h)
100 mph (160.93 km/h)99.11 mph (159.49 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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