Water Volume Calculation & Conversion Charts
Calculating Water Volume In U.S. Gallons 1.
Mathematical Formulas a. If computed in inches, divide the
total by 231.
b. If computed in feet, multiply the total by 7.5
Rectangular shapes: length X width X depth.
Circular shapes: 3.14 X radius² X depth
2. Using a domestic water meter:
Use a wrench to turn the locking nut on the meter to remove the lid.
Record the reading before filling the pond. Subtract this
figure from the figure recorded after filling is completed. No
water at all should be used in the house during filling.
3. Using hose output: Fill a large
bucket for exactly 60 seconds. Measure the water in pints and
divide by 8 to compute U.S. gallons. Record start and stop
times of filling the pond. Multiply the total minutes required
for filling by the number of gallons the hose discharges in one
minute. Calculating Water Volume In
Liters 1. Multiply length X
width X depth in meters X 28.41 for rectangular volume.
2. Multiply depth in meters X metric
diameter² X 20.75 for circular volume.
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