Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
275/35r17 vs 315/35r17 Tire Comparison Side By Side
  275/35-17 315/35-17 Difference
Diameter inches (mm) 24.58 (624.3) 25.68 (652.3) 1.1 (28) 4.5%
Width inches (mm) 10.83 (275) 12.4 (315) 1.57 (40) 14.5%
Circum. inches (mm) 77.22 (1961.3) 80.68 (2049.26) 3.46 (87.96) 4.5%
Sidewall Height inches (mm) 3.79 (96.25) 4.34 (110.25) 0.55 (14) 14.5%
Revolutions per mile (km) 820.55 (509.87) 785.33 (487.98) -35.22 (-21.89) -4.3%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)20.9 mph (33.63 km/h)
25 mph (40.23 km/h)26.12 mph (42.04 km/h)
30 mph (48.28 km/h)31.35 mph (50.45 km/h)
35 mph (56.33 km/h)36.57 mph (58.85 km/h)
40 mph (64.37 km/h)41.79 mph (67.26 km/h)
45 mph (72.42 km/h)47.02 mph (75.67 km/h)
50 mph (80.47 km/h)52.24 mph (84.08 km/h)
55 mph (88.51 km/h)57.47 mph (92.48 km/h)
60 mph (96.56 km/h)62.69 mph (100.89 km/h)
65 mph (104.61 km/h)67.92 mph (109.3 km/h)
70 mph (112.65 km/h)73.14 mph (117.71 km/h)
75 mph (120.7 km/h)78.36 mph (126.11 km/h)
80 mph (128.75 km/h)83.59 mph (134.52 km/h)
85 mph (136.79 km/h)88.81 mph (142.93 km/h)
90 mph (144.84 km/h)94.04 mph (151.34 km/h)
95 mph (152.89 km/h)99.26 mph (159.75 km/h)
100 mph (160.93 km/h)104.49 mph (168.15 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
19992322250026112730281529083019317233253495363138784150436344994575485652476098
Better Fuel Economy Factory Ratios Increased Power

Most Popular 275/35-R17 Comparisons

To Top