Convert Nanograms to Stones
Convert Nanograms (ng) to Stones (st) instantly and accurately.
Conversion Formula
st = ng × 1.574730444e-13
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.
About Stones
A stone (st) equals 14 pounds or approximately 6.350 kg. It is the standard unit for expressing human body weight in the United Kingdom and Ireland, where a person will say they weigh '11 stone 4' (meaning 11 stone and 4 pounds, or 158 lb / 71.7 kg). Despite the UK's official adoption of the metric system, stones remain the dominant unit for personal body weight on British bathroom scales, in doctors' offices, and in everyday conversation. British newspapers and sports reports routinely describe athletes' weights in stones and pounds.
Quick Reference Table
| Nanograms (ng) | Stones (st) |
|---|---|
| 1 ng | 1.575 × 10-13 st |
| 2 ng | 3.149 × 10-13 st |
| 5 ng | 7.874 × 10-13 st |
| 10 ng | 1.575 × 10-12 st |
| 25 ng | 3.937 × 10-12 st |
| 50 ng | 7.874 × 10-12 st |
| 100 ng | 1.575 × 10-11 st |