Convert from drum [metric, petroleum] to stere

Unit Definition (drum [metric, petroleum])
The drum [metric, petroleum] is a unit of volume sometimes used in the oil trade. In the metric world, drums of 200 liters, 205 liters, and 208 liters are in use as substitutes for the traditional size.

Unit Definition (stere)
The stere is a metric unit of volume, equal to one cubic meter or one kiloliter (about 35.3147 cubic feet or 1.307 95 cubic yards). Although it dates from the origin of the metric system in 1798, the stere has never been used as much as the liter. In Europe it is used primarily as a measure for firewood; for this purpose, the stere equals about 0.2795 cord or 2.207 cord feet. The name comes from the Greek stereos, solid.