Convert Apothecary Ounces to Megatons
Convert Apothecary Ounces (oz ap) to Megatons (Mt) instantly and accurately.
Conversion Formula
Mt = oz ap × 3.110347680e-11
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 Although the apothecary system has been replaced by SI units in modern medicine, the apothecary ounce still appears in historical pharmacopeias, traditional herbal medicine texts, and some compounding pharmacy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 Megatons
A megaton (Mt) equals one million metric tonnes (10⁹ kg). Nuclear weapon yields are measured in megatons of TNT equivalent: the largest weapon ever detonated, the Soviet Tsar Bomba tested in 1961, had a yield of approximately 50 Mt TNT and produced a fireball 8 km in diameter. Annual global CO₂ emissions are reported in gigatons (Gt), but regional emissions data and specific industrial sectors are quoted in megatons. The Chicxulub asteroid impact that caused the Cretaceous-Paleogene mass extinction released energy equivalent to roughly 100 million Mt of TNT.
Quick Reference Table
| Apothecary Ounces (oz ap) | Megatons (Mt) |
|---|---|
| 1 oz ap | 3.11 × 10-11 Mt |
| 2 oz ap | 6.221 × 10-11 Mt |
| 5 oz ap | 1.555 × 10-10 Mt |
| 10 oz ap | 3.11 × 10-10 Mt |
| 25 oz ap | 7.776 × 10-10 Mt |
| 50 oz ap | 1.555 × 10-9 Mt |
| 100 oz ap | 3.11 × 10-9 Mt |