Convert Megatons to Long Tons
Convert Megatons (Mt) to Long Tons (L/T) instantly and accurately.
Conversion Formula
L/T = Mt × 984206.5276
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.
About Long Tons
A long ton (UK ton, displacement ton) equals 2,240 pounds or exactly 1,016.0469088 kg. The standard ton in the United Kingdom and Commonwealth countries, it equals 20 long hundredweights of 112 lb each. Naval architecture and ship displacement are specified in long tons: the displacement of a warship or cargo vessel is the weight of water it displaces, expressed in long tons. The Titanic had a displacement of approximately 52,310 long tons. British agricultural, mining, and coal trade statistics from the 18th through mid-20th centuries used long tons exclusively.
Quick Reference Table
| Megatons (Mt) | Long Tons (L/T) |
|---|---|
| 1 Mt | 984207 L/T |
| 2 Mt | 1968410 L/T |
| 5 Mt | 4921030 L/T |
| 10 Mt | 9842070 L/T |
| 25 Mt | 24605200 L/T |
| 50 Mt | 49210300 L/T |
| 100 Mt | 98420700 L/T |