Convert Apothecary Drams to Megatons
Convert Apothecary Drams (dr ap) to Megatons (Mt) instantly and accurately.
Conversion Formula
Mt = dr ap × 3.887934600e-12
About Apothecary Drams
An apothecary dram (dr ap) equals 3 scruples or 60 grains - approximately 3.888 grams. Part of the traditional apothecary system used by physicians and pharmacists from the Middle Ages through the 19th century, it was the standard unit for prescribing and dispensing medicines. Prescriptions written in the apothecary system used special symbols: the dram symbol (℈) and ounce symbol (℥) appear throughout historical medical records and old pharmacy ledgers. The apothecary dram differs from the fluid dram (a volume unit) and from the avoirdupois dram.
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 Drams (dr ap) | Megatons (Mt) |
|---|---|
| 1 dr ap | 3.888 × 10-12 Mt |
| 2 dr ap | 7.776 × 10-12 Mt |
| 5 dr ap | 1.944 × 10-11 Mt |
| 10 dr ap | 3.888 × 10-11 Mt |
| 25 dr ap | 9.72 × 10-11 Mt |
| 50 dr ap | 1.944 × 10-10 Mt |
| 100 dr ap | 3.888 × 10-10 Mt |