Drugs & toxicology

Digoxin unit converter

Heart medication level (therapeutic range)

Also known as: Digoxine, Digoxina, Digossina, Lanoxin, Lanicor, Digitek

Converter

Enter a value in any unit and all other units fill in.

ng/mL nmol/L µg/dL ng/dL ng/L pmol/L

Worked example

1.25 ng/mL (middle of the reference range) = 1.6 nmol/L

Conversion formulas

nmol/L	nmol/L = ng/mL × 1.28	ng/mL = nmol/L × 0.781
µg/dL	µg/dL = ng/mL × 0.1	ng/mL = µg/dL × 10
ng/dL	ng/dL = ng/mL × 100	ng/mL = ng/dL × 0.01
ng/L	ng/L = ng/mL × 1000	ng/mL = ng/L × 0.001
pmol/L	pmol/L = ng/mL × 1281	ng/mL = pmol/L × 0.0007809

Reference range

Unit	Adults
ng/mL	0.5 – 2
nmol/L	0.6402 – 2.561
µg/dL	0.05 – 0.2
ng/dL	50 – 200
ng/L	500 – 2000
pmol/L	640.3 – 2561

Source: FDA drug label (DailyMed): Lanoxin (digoxin) · Last reviewed: 2026-10-14

Note from the source: Below 0.5 ng/mL less effective, above 2 ng/mL more toxicity; above 1.2 ng/mL more adverse reactions (FDA label). Heart-failure guidelines aim for 0.5-0.9 ng/mL

Frequently asked questions

How do I convert Digoxin from ng/mL to nmol/L?

nmol/L = ng/mL × 1.28. In the other direction: ng/mL = nmol/L × 0.781.

What is the reference range of Digoxin?

For adults the range is 0.5 – 2 ng/mL (FDA drug label (DailyMed): Lanoxin (digoxin)). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Digoxin?

Common units are ng/mL, nmol/L, µg/dL, ng/dL, ng/L, pmol/L.