Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/70r16 vs 225/55r17 Tire Comparison Side By Side
  215/70-16 225/55-17 Difference
Diameter inches (mm) 27.85 (707.4) 26.74 (679.3) -1.11 (-28.1) -4%
Width inches (mm) 8.46 (215) 8.86 (225) 0.39 (10) 4.7%
Circum. inches (mm) 87.49 (2222.36) 84.02 (2134.08) -3.48 (-88.28) -4%
Sidewall Height inches (mm) 5.93 (150.5) 4.87 (123.75) -1.05 (-26.75) -17.8%
Revolutions per mile (km) 724.16 (449.97) 754.11 (468.58) 29.96 (18.61) 4.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.21 mph (30.91 km/h)
25 mph (40.23 km/h)24.01 mph (38.64 km/h)
30 mph (48.28 km/h)28.81 mph (46.36 km/h)
35 mph (56.33 km/h)33.61 mph (54.09 km/h)
40 mph (64.37 km/h)38.41 mph (61.82 km/h)
45 mph (72.42 km/h)43.21 mph (69.54 km/h)
50 mph (80.47 km/h)48.01 mph (77.27 km/h)
55 mph (88.51 km/h)52.82 mph (85 km/h)
60 mph (96.56 km/h)57.62 mph (92.73 km/h)
65 mph (104.61 km/h)62.42 mph (100.45 km/h)
70 mph (112.65 km/h)67.22 mph (108.18 km/h)
75 mph (120.7 km/h)72.02 mph (115.91 km/h)
80 mph (128.75 km/h)76.82 mph (123.63 km/h)
85 mph (136.79 km/h)81.62 mph (131.36 km/h)
90 mph (144.84 km/h)86.42 mph (139.09 km/h)
95 mph (152.89 km/h)91.23 mph (146.81 km/h)
100 mph (160.93 km/h)96.03 mph (154.54 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
19192229240125072621270327932899304631933356348737243985418943204393466350395855
Better Fuel Economy Factory Ratios Increased Power

Most Popular 215/70-R16 Comparisons

To Top