Calculator: SI unit to conventional (gravimetric, imperial, US) unit conversions: Immunology lab values

Notes

SI units: Système Internationale d'Unités, or International System of Units.
US units: Gravimetric, imperial, or traditional English units.
ANCA: antineutrophil cytoplasmic antibodies; GBM: glomerular basement membrane; IgA: immunoglobulin A; IgE: immunoglobulin E; IgG: immunoglobulin G; IgM: immunoglobulin M.
To make immunology unit conversions, first choose from the top pull-down selector.
Next, select the starting unit and enter a value in the FROM input.
Select a TO unit from the lower right selector and the converted value will appear immediately in the TO box.
The conversion factor for any selected analyte can be found by entering 1.0 in the "FROM" input box for that analyte and viewing the conversion factor in the "TO" output box. Conversion is calculated by multiplying a value in the FROM units by the conversion factor.
In this calculator, mcg is the abbreviation for micrograms.

References

Young DS. Implementation of SI Units for Clinical Laboratory Data. Ann Int Med 1987; 106:114.

Conversion factors

Alpha1-antitrypsin mg/dL	X	0.01	=	Alpha1-antitrypsin g/L
ANCA, cytoplasmic (C-ANCA) U/mL	X	1	=	ANCA, cytoplasmic (C-ANCA) kU/L
ANCA, perinuclear (P-ANCA) U/mL	X	1	=	ANCA, perinuclear (P-ANCA) kU/L
Anti-GBM antibodies U/mL	X	1	=	Anti-GBM antibodies kU/L
Antithyroid antibody IU/mL	X	1	=	Antithyroid antibody kIU/L
Bence Jones protein (quantitative) mg/dL	X	0.01	=	Bence Jones protein (quantitative) g/L
C1-esterase-inhibitor protein mg/dL	X	0.01	=	C1-esterase-inhibitor protein g/L
C3 mg/dL	X	0.01	=	C3 g/L
C4 mg/dL	X	0.01	=	C4 g/L
Factor B mg/dL	X	0.01	=	Factor B g/L
Haptoglobin mg/dL	X	0.01	=	Haptoglobin g/L
IgA mg/dL	X	0.01	=	IgA g/L
IgE IU/mL	X	2.4	=	IgE mcg/L
IgG mg/dL	X	0.01	=	IgG g/L
IgM mg/dL	X	0.01	=	IgM g/L
Total complement U/mL	X	1	=	Total complement kU/L

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.

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.

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