Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
200/70r15 vs 216/70r16 Tire Comparison Side By Side
  200/70-15 216/70-16 Difference
Diameter inches (mm) 26.02 (661) 27.91 (708.8) 1.88 (47.8) 7.2%
Width inches (mm) 7.87 (200) 8.5 (216) 0.63 (16) 8%
Circum. inches (mm) 81.76 (2076.59) 87.67 (2226.76) 5.91 (150.17) 7.2%
Sidewall Height inches (mm) 5.51 (140) 5.95 (151.2) 0.44 (11.2) 8%
Revolutions per mile (km) 774.99 (481.56) 722.73 (449.08) -52.26 (-32.48) -6.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.45 mph (34.51 km/h)
25 mph (40.23 km/h)26.81 mph (43.14 km/h)
30 mph (48.28 km/h)32.17 mph (51.77 km/h)
35 mph (56.33 km/h)37.53 mph (60.4 km/h)
40 mph (64.37 km/h)42.89 mph (69.03 km/h)
45 mph (72.42 km/h)48.25 mph (77.66 km/h)
50 mph (80.47 km/h)53.62 mph (86.29 km/h)
55 mph (88.51 km/h)58.98 mph (94.91 km/h)
60 mph (96.56 km/h)64.34 mph (103.54 km/h)
65 mph (104.61 km/h)69.7 mph (112.17 km/h)
70 mph (112.65 km/h)75.06 mph (120.8 km/h)
75 mph (120.7 km/h)80.42 mph (129.43 km/h)
80 mph (128.75 km/h)85.79 mph (138.06 km/h)
85 mph (136.79 km/h)91.15 mph (146.69 km/h)
90 mph (144.84 km/h)96.51 mph (155.32 km/h)
95 mph (152.89 km/h)101.87 mph (163.94 km/h)
100 mph (160.93 km/h)107.23 mph (172.57 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
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