For Parents

Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.

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).