From various places on the www--lest anyone think I understand this stuff.


Water

Weight: 62.416 pounds per cubic foot at 32°F
Weight: 61.998 pounds per cubic foot at 100°F

1 cubic meter = 35.3146667 cubic foot

So, 35.3 cubic ft in a cubic meter at 62.4 lbs a cu ft.

We then multiply 35.3 x 62.4 and get 2202 lbs or pounds.

Sea water will weigh a bit more because of the salt that's in it. These calculations are rough, and science people have these types of conversions programmed into their calculators.

Until the day she died my mother was convinced that when Canada went metric and that because Calgary and Edmonton had been about 200 miles from each other by highway, that since they were now about 300 km apart with the new measurement system, the cities themselves had got further apart.