Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
215/80r16 vs 215/70r16 Tire Comparison Side By Side
  215/80-16 215/70-16 Difference
Diameter inches (mm) 29.54 (750.4) 27.85 (707.4) -1.69 (-43) -5.7%
Width inches (mm) 8.46 (215) 8.46 (215) 0 (0) 0%
Circum. inches (mm) 92.81 (2357.45) 87.49 (2222.36) -5.32 (-135.09) -5.7%
Sidewall Height inches (mm) 6.77 (172) 5.93 (150.5) -0.85 (-21.5) -12.5%
Revolutions per mile (km) 682.66 (424.19) 724.16 (449.97) 41.5 (25.78) 6.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)18.85 mph (30.34 km/h)
25 mph (40.23 km/h)23.57 mph (37.93 km/h)
30 mph (48.28 km/h)28.28 mph (45.51 km/h)
35 mph (56.33 km/h)32.99 mph (53.1 km/h)
40 mph (64.37 km/h)37.71 mph (60.69 km/h)
45 mph (72.42 km/h)42.42 mph (68.27 km/h)
50 mph (80.47 km/h)47.13 mph (75.86 km/h)
55 mph (88.51 km/h)51.85 mph (83.44 km/h)
60 mph (96.56 km/h)56.56 mph (91.03 km/h)
65 mph (104.61 km/h)61.28 mph (98.61 km/h)
70 mph (112.65 km/h)65.99 mph (106.2 km/h)
75 mph (120.7 km/h)70.7 mph (113.78 km/h)
80 mph (128.75 km/h)75.42 mph (121.37 km/h)
85 mph (136.79 km/h)80.13 mph (128.96 km/h)
90 mph (144.84 km/h)84.84 mph (136.54 km/h)
95 mph (152.89 km/h)89.56 mph (144.13 km/h)
100 mph (160.93 km/h)94.27 mph (151.71 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
18432141230624072517259626822784292530663223334835763827402341484219447848385623
Better Fuel Economy Factory Ratios Increased Power

Most Popular 215/80-R16 Comparisons

To Top