Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
315/30r22 vs 305/35r22 Tire Comparison Side By Side
  315/30-22 305/35-22 Difference
Diameter inches (mm) 29.44 (747.8) 30.41 (772.3) 0.96 (24.5) 3.3%
Width inches (mm) 12.4 (315) 12.01 (305) -0.39 (-10) -3.2%
Circum. inches (mm) 92.49 (2349.28) 95.52 (2426.25) 3.03 (76.97) 3.3%
Sidewall Height inches (mm) 3.72 (94.5) 4.2 (106.75) 0.48 (12.25) 13%
Revolutions per mile (km) 685.04 (425.66) 663.3 (412.16) -21.73 (-13.5) -3.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.66 mph (33.24 km/h)
25 mph (40.23 km/h)25.82 mph (41.55 km/h)
30 mph (48.28 km/h)30.98 mph (49.86 km/h)
35 mph (56.33 km/h)36.15 mph (58.17 km/h)
40 mph (64.37 km/h)41.31 mph (66.48 km/h)
45 mph (72.42 km/h)46.47 mph (74.79 km/h)
50 mph (80.47 km/h)51.64 mph (83.1 km/h)
55 mph (88.51 km/h)56.8 mph (91.41 km/h)
60 mph (96.56 km/h)61.97 mph (99.72 km/h)
65 mph (104.61 km/h)67.13 mph (108.03 km/h)
70 mph (112.65 km/h)72.29 mph (116.35 km/h)
75 mph (120.7 km/h)77.46 mph (124.66 km/h)
80 mph (128.75 km/h)82.62 mph (132.97 km/h)
85 mph (136.79 km/h)87.78 mph (141.28 km/h)
90 mph (144.84 km/h)92.95 mph (149.59 km/h)
95 mph (152.89 km/h)98.11 mph (157.9 km/h)
100 mph (160.93 km/h)103.28 mph (166.21 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
16881961211222052306237824572550267928092952306732753505368538003864410144325150
Better Fuel Economy Factory Ratios Increased Power

Most Popular 315/30-R22 Comparisons

To Top