How Much Water Do I Have?

To calculate litres

Measure average length — average width — average depth in metric Multiply the length x width this will give you a total value of m2 multiply this by the depth and you will have a total value of m3 multiply this figure by 1000 (litres in a m3) the final figure is the volume of your pond.

Example
Average length 2.4 meters Average width 1.2 meters

2.4 x 1.2 = 2.88

Average depth 60cm = 0.6cm

2.88 x 0.6 = 1.72m3 x 1000 = 1720 litres

For imperial gallons measure in feet

Example
Average length 7 ft Average width 4 ft

7 x 4 = 28 sq ft

Average depth 2 ft

28 x 2 = 56 sq ft x 6.23 = 348 gallons ( one cubic foot of water = 6.23 imperial gallons)

Helpful conversions
1 gallon = 4.54 litres m3 = 1000 litres 1 meter = 39 inches ( 3 ft 3 inches ) 1 cubic foot = 6.23 gallons