Convert Apothecary Ounces to Nanograms
Convert Apothecary Ounces (oz ap) to Nanograms (ng) instantly and accurately.
Conversion Formula
ng = oz ap × 31103476800
About Apothecary Ounces
An apothecary ounce (oz ap) is identical in mass to the troy ounce - approximately 31.10 grams - and equals 8 apothecary drams or 480 grains. It was the standard ounce used by pharmacists and physicians across Europe and North America from medieval times until the 20th century. Although the apothecary system has been replaced by SI units in modern medicine, the apothecary ounce still appears in historical pharmacopeias, traditional herbal medicine texts, and some compounding pharmacy references.
About Nanograms
A nanogram (ng) is one billionth of a gram (10⁻⁹ g). This is the standard mass unit in analytical chemistry, pharmacology, and toxicology for detecting trace substances. Blood plasma concentrations of hormones, drugs, and environmental contaminants are routinely reported in nanograms per milliliter (ng/mL). A typical therapeutic blood level for many medications is in the range of 10-500 ng/mL. In forensic science, nanogram-level DNA quantities can be amplified by PCR to yield a full genetic profile.
Quick Reference Table
| Apothecary Ounces (oz ap) | Nanograms (ng) |
|---|---|
| 1 oz ap | 3.11 × 1010 ng |
| 2 oz ap | 6.221 × 1010 ng |
| 5 oz ap | 1.555 × 1011 ng |
| 10 oz ap | 3.11 × 1011 ng |
| 25 oz ap | 7.776 × 1011 ng |
| 50 oz ap | 1.555 × 1012 ng |
| 100 oz ap | 3.11 × 1012 ng |