Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
205/65r16 vs 215/60r16 Tire Comparison Side By Side
  205/65-16 215/60-16 Difference
Diameter inches (mm) 26.49 (672.9) 26.16 (664.4) -0.33 (-8.5) -1.3%
Width inches (mm) 8.07 (205) 8.46 (215) 0.39 (10) 4.9%
Circum. inches (mm) 83.23 (2113.98) 82.18 (2087.27) -1.05 (-26.7) -1.3%
Sidewall Height inches (mm) 5.25 (133.25) 5.08 (129) -0.17 (-4.25) -3.2%
Revolutions per mile (km) 761.29 (473.04) 771.03 (479.09) 9.74 (6.05) 1.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.75 mph (31.78 km/h)
25 mph (40.23 km/h)24.68 mph (39.73 km/h)
30 mph (48.28 km/h)29.62 mph (47.67 km/h)
35 mph (56.33 km/h)34.56 mph (55.62 km/h)
40 mph (64.37 km/h)39.49 mph (63.56 km/h)
45 mph (72.42 km/h)44.43 mph (71.51 km/h)
50 mph (80.47 km/h)49.37 mph (79.45 km/h)
55 mph (88.51 km/h)54.31 mph (87.4 km/h)
60 mph (96.56 km/h)59.24 mph (95.34 km/h)
65 mph (104.61 km/h)64.18 mph (103.29 km/h)
70 mph (112.65 km/h)69.12 mph (111.23 km/h)
75 mph (120.7 km/h)74.05 mph (119.18 km/h)
80 mph (128.75 km/h)78.99 mph (127.12 km/h)
85 mph (136.79 km/h)83.93 mph (135.07 km/h)
90 mph (144.84 km/h)88.86 mph (143.01 km/h)
95 mph (152.89 km/h)93.8 mph (150.96 km/h)
100 mph (160.93 km/h)98.74 mph (158.9 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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