Convert Scruples to Megatons
Convert Scruples (s ap) to Megatons (Mt) instantly and accurately.
Conversion Formula
Mt = s ap × 1.295978200e-12
About Scruples
A scruple (s ap) is a unit of the apothecary weight system equal to 20 grains or approximately 1.296 grams. Derived from the Latin 'scrupulus' (a small sharp stone used as a counterweight), it was the basic dispensing unit in pre-metric pharmacy across Europe. The apothecary system divided the fluid ounce into 8 drams, each dram into 3 scruples, and each scruple into 20 grains - a hierarchy memorised by every 19th-century pharmacist.
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
| Scruples (s ap) | Megatons (Mt) |
|---|---|
| 1 s ap | 1.296 × 10-12 Mt |
| 2 s ap | 2.592 × 10-12 Mt |
| 5 s ap | 6.48 × 10-12 Mt |
| 10 s ap | 1.296 × 10-11 Mt |
| 25 s ap | 3.24 × 10-11 Mt |
| 50 s ap | 6.48 × 10-11 Mt |
| 100 s ap | 1.296 × 10-10 Mt |