Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
305/30r26 vs 305/35r24 Tire Comparison Side By Side
  305/30-26 305/35-24 Difference
Diameter inches (mm) 33.2 (843.4) 32.41 (823.1) -0.8 (-20.3) -2.4%
Width inches (mm) 12.01 (305) 12.01 (305) 0 (0) 0%
Circum. inches (mm) 104.32 (2649.62) 101.8 (2585.84) -2.51 (-63.77) -2.4%
Sidewall Height inches (mm) 3.6 (91.5) 4.2 (106.75) 0.6 (15.25) 16.7%
Revolutions per mile (km) 607.39 (377.41) 622.37 (386.72) 14.98 (9.31) 2.5%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.52 mph (31.41 km/h)
25 mph (40.23 km/h)24.4 mph (39.27 km/h)
30 mph (48.28 km/h)29.28 mph (47.12 km/h)
35 mph (56.33 km/h)34.16 mph (54.97 km/h)
40 mph (64.37 km/h)39.04 mph (62.82 km/h)
45 mph (72.42 km/h)43.92 mph (70.68 km/h)
50 mph (80.47 km/h)48.8 mph (78.53 km/h)
55 mph (88.51 km/h)53.68 mph (86.38 km/h)
60 mph (96.56 km/h)58.56 mph (94.24 km/h)
65 mph (104.61 km/h)63.44 mph (102.09 km/h)
70 mph (112.65 km/h)68.32 mph (109.94 km/h)
75 mph (120.7 km/h)73.19 mph (117.8 km/h)
80 mph (128.75 km/h)78.07 mph (125.65 km/h)
85 mph (136.79 km/h)82.95 mph (133.5 km/h)
90 mph (144.84 km/h)87.83 mph (141.36 km/h)
95 mph (152.89 km/h)92.71 mph (149.21 km/h)
100 mph (160.93 km/h)97.59 mph (157.06 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
15841840198120692163223123052393251426352770287830733289345735653626384841584832
Better Fuel Economy Factory Ratios Increased Power

Most Popular 305/30-R26 Comparisons

To Top