Convert Long Hundredweights to Megatons
Convert Long Hundredweights (long cwt) to Megatons (Mt) instantly and accurately.
Conversion Formula
Mt = long cwt × 5.080234544e-8
About Long Hundredweights
A long hundredweight (long cwt) equals 112 pounds or approximately 50.802 kg - equal to 8 stone. The standard hundredweight in the United Kingdom and much of its historical trading sphere, it reflects the medieval English stone of 14 lb (8 × 14 = 112). British agricultural commodity prices, wool trade records, and livestock market reports historically used long hundredweights. The UK meat trade still occasionally references hundredweights in wholesale pricing.
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
| Long Hundredweights (long cwt) | Megatons (Mt) |
|---|---|
| 1 long cwt | 5.08 × 10-8 Mt |
| 2 long cwt | 1.016 × 10-7 Mt |
| 5 long cwt | 2.54 × 10-7 Mt |
| 10 long cwt | 5.08 × 10-7 Mt |
| 25 long cwt | 1.27 × 10-6 Mt |
| 50 long cwt | 2.54 × 10-6 Mt |
| 100 long cwt | 5.08 × 10-6 Mt |