Emergency Medicine · Toxicology · Internal Medicine

Serum Osmolal Contribution of Ethanol calculator

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Clinical inputs

Serum ethanol (mg/dL)

Result

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Formula inputs

Serum ethanol (mg/dL)Accepted range: 0 to 800

Primary source

Dubowski KM. Manual of Analysis of Ethanol in Biological Fluids. NHTSA. DOI: 10.21949/1402615. PMID: 12214776. Scope: each 1 mg/dL of ethanol increases measured serum osmolality by approximately 0.217 mOsm/kg, equivalent to dividing ethanol concentration (mg/dL) by 4.6 to estimate osmolal contribution (mOsm/kg). (1977)

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