Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
200/70r15 vs 205/65r15 Tire Comparison Side By Side
  200/70-15 205/65-15 Difference
Diameter inches (mm) 26.02 (661) 25.49 (647.5) -0.53 (-13.5) -2%
Width inches (mm) 7.87 (200) 8.07 (205) 0.2 (5) 2.5%
Circum. inches (mm) 81.76 (2076.59) 80.09 (2034.18) -1.67 (-42.41) -2%
Sidewall Height inches (mm) 5.51 (140) 5.25 (133.25) -0.27 (-6.75) -4.8%
Revolutions per mile (km) 774.99 (481.56) 791.15 (491.6) 16.16 (10.04) 2.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.59 mph (31.53 km/h)
25 mph (40.23 km/h)24.49 mph (39.41 km/h)
30 mph (48.28 km/h)29.39 mph (47.29 km/h)
35 mph (56.33 km/h)34.29 mph (55.18 km/h)
40 mph (64.37 km/h)39.18 mph (63.06 km/h)
45 mph (72.42 km/h)44.08 mph (70.94 km/h)
50 mph (80.47 km/h)48.98 mph (78.82 km/h)
55 mph (88.51 km/h)53.88 mph (86.71 km/h)
60 mph (96.56 km/h)58.77 mph (94.59 km/h)
65 mph (104.61 km/h)63.67 mph (102.47 km/h)
70 mph (112.65 km/h)68.57 mph (110.35 km/h)
75 mph (120.7 km/h)73.47 mph (118.24 km/h)
80 mph (128.75 km/h)78.37 mph (126.12 km/h)
85 mph (136.79 km/h)83.26 mph (134 km/h)
90 mph (144.84 km/h)88.16 mph (141.88 km/h)
95 mph (152.89 km/h)93.06 mph (149.77 km/h)
100 mph (160.93 km/h)97.96 mph (157.65 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
20132339251926302750283629303041319633503521365839074181439545324609489252866143
Better Fuel Economy Factory Ratios Increased Power

Most Popular 200/70-R15 Comparisons

To Top