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Units per liter (U/L)

The results of some medical tests are reported in units per liter (U/L).

  • A unit is an arbitrary amount agreed upon by scientists and doctors.
  • A liter is a measure of volume that is slightly larger than a quart.
  • A kilo unit is one thousand units. It is written kU/L. Some medical tests are reported using this standard international unit (SI unit).

Current as of: May 1, 2026

Author: WebMD Ignite Staff

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