Convert Apothecary Ounces to Kilotonnes
Convert Apothecary Ounces (oz ap) to Kilotonnes (kt) instantly and accurately.
Conversion Formula
kt = oz ap × 3.110347680e-8
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 Although the apothecary system has been replaced by SI units in modern medicine, the apothecary ounce still appears in historical pharmacopeias, traditional herbal medicine texts, and some compounding pharmacy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 Kilotonnes
A kilotonne (kt) equals 1,000 metric tonnes (10⁶ kg). In military and geopolitical contexts, nuclear weapon yields are expressed in kilotons of TNT equivalent (kt TNT): the atomic bomb dropped on Hiroshima had a yield of approximately 15 kt TNT. Environmental science uses kilotonnes for reporting regional greenhouse gas inventories, industrial pollutant releases, and annual waste generation. Mining operations quote ore extraction rates in kilotonnes per day. The global atmospheric inventory of various trace gases is reported in kilotonnes.
Quick Reference Table
| Apothecary Ounces (oz ap) | Kilotonnes (kt) |
|---|---|
| 1 oz ap | 3.11 × 10-8 kt |
| 2 oz ap | 6.221 × 10-8 kt |
| 5 oz ap | 1.555 × 10-7 kt |
| 10 oz ap | 3.11 × 10-7 kt |
| 25 oz ap | 7.776 × 10-7 kt |
| 50 oz ap | 1.555 × 10-6 kt |
| 100 oz ap | 3.11 × 10-6 kt |