How many gallons of water are in one acre foot?
One acre-foot is 325,851.4 US gallons of water.
A 1000 acre lake that is 7 feet deep (uniformly) will have 7000 acre feet of water in it. An acre foot is an acre of water one foot deep, and the unit is used to measure reservoir water capacity. The conversion factor is that one acre foot equals about 325,851.5 gallons. The lake in question is holding 7000 times 325,851.5 gallons of water.
Multiply acre-ft by 325,900 to get gallons. So your answer would be about 138 billion gallons, more precisely 1.379 x 1011 gallons. We know that 1 acre foot = 325 851.427 US gallons. We need to find the number of gallons of water in 423035 acre feet. 1 acre foot = 325 851.427 US gallons. So, 423035 = 325 851.427 * 423035 US gallons = 137846558420.945 US gallons. Approximately 1.37846559 × 1011 US gallons of…