Your activity: 93 p.v.
your limit has been reached. plz Donate us to allow your ip full access, Email:

Calculator: Urine anion gap (conventional and SI units)

Calculator: Urine anion gap (conventional and SI units)

Na   mEq/L [mmol/L]
K   mEq/L [mmol/L]
Cl   mEq/L [mmol/L]

Important: Inputs must be complete to perform calculation.

Urine anion gap   mEq/L [mmol/L]
Decimal precision  


  • The urine anion gap is calculated from the difference between the major measured urinary cations (Na and K) and urinary anions (Cl).
  • Clinical use of the anion gap calculation is discussed in appropriate UpToDate topics.

Equations used
Urine_anion_gap = (Na + K) - Cl

Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

Legal Notices and Disclaimer

All information contained in and produced by the EBMcalc system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. Click here for full notice and disclaimer.

EBMcalc is Copyright © 1998-2023 Foundation Internet Services, LLC

Topic 15661 Version 8.0