Cubic inch

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A cubic inch is an Imperial unit / U.S. customary unit (non-SI non-metric) of volume, used in the United States. It is defined as the volume of a cube with sides of 1 inch (1/36 yards, 1/12 feet, or 0.0254 metres) in length.

Symbols

There is no universally agreed symbol but the following are used:

  • cubic inches, cubic inch, cubic in
  • cu inches, cu inch, cu in
  • inches/-3, inch/-3, in/-3
  • inches^3, inch^3, in^3
  • inches³, inch³, in³

Conversions

1 cubic inch is equivalent to:

Examples

These examples reflect common engine sizes:

  • 200 c.i. = 3.28 litres
  • 350 c.i. = 5.74 litres
  • 409 c.i. = 6.7 litres
  • 426 c.i. = 6.98 litres
  • 454 c.i. = 7.44 litres
  • 1000cc = 61 c.i.
  • 1600cc = 97.6 c.i.
  • 2000cc = 122 c.i.

See also

ja:立方インチ