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Educational use only. Not a substitute for clinical judgment. Always verify independently.
Osmolar Gap Calculator
Calculate serum osmolality and osmolar gap with optional ethanol correction.
mEq/L
mg/dL
mg/dL
mOsm/kg
mg/dL
Calculated Osm
290.6
Osmolar gap
-0.6
Normal osmolar gap (−10 to +10 mOsm/kg).
References
Updated 2026-04-20Report an error