quick question

[theshark1019]

what would the volume of water covering a 640 acre area be after 1 inch of rainfall?

[Toptunov]

There should come a day when Anglosaxons will accept the Napoleon measurement system.
In the meantime accept this help.

CONVERSION TABLE
1 acre = 4046,85642 square meters
1 meter = 39,37 inches

VOLUME
V = B x H = 640 acres x 1 inch = (640 x 4046,85642) x (1/39,37) = 65785,83 cube meters

[Epsilon=One]

There should come a day when Anglosaxons will accept the Napoleon measurement system.Anglosaxons often seem stubborn and slow to progress.

Possible the one inch of rainfall was adsorbed???