Urinary Protein Excretion Estimation

Spot Urine Protein  
Spot Urine Creat  

Protein Excreted  
Decimal Precision  
  • In this calculator, mcg is the abbreviation for micrograms.

Equations used
ProteinExcreted = SpotUrineProtein / SpotUrineCreat


  1. Schwab SJ, Christensen RL, Dougherty K, Klahr S. Quantitation of proteinuria by the use of protein-to-creatinine ratios in single urine samples. Arch Intern Med. 1987 May;147(5):943-4. PubMed ID: 3555378 PubMed Logo
  2. Ginsberg JM, Chang BS, Matarese RA, Garella S. Use of single voided urine samples to estimate quantitative proteinuria. N Engl J Med. 1983 Dec 22;309(25):1543-6. PubMed ID: 6656849 PubMed Logo
  3. Houser M. Assessment of proteinuria using random urine samples. J Pediatr. 1984 Jun;104(6):845-8. PubMed ID: 6726514 PubMed Logo


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