Convert from quarter (ton) [US] to megatonne

Unit Definition (quarter (ton) [US])
The quarter (ton) [US] is a traditional unit of weight equal to 1/4 hundredweight. In the U.S., "quarter" is also used informally to mean 1/4 ton, or 500 pounds (226.80 kilograms).

Unit Definition (megatonne)
The megatonne is a metric unit of mass or weight equal to one million metric tons (tonnes), one teragram (Tg), or about 2.2046 billion pounds.