Capacity of Square or Rectangular Pools
In Cubic meters (Meteric)
Length in meters x Width in meters x Average Depth in meters = Volume in Metres cubed.
In Gallons (imperial)
Length in feet x Width in feet x Average Depth in feet x 6.25 = Volume in Gallons
Capacity of Circular Pools
Calculation Volume of Pool = Π(pi) x rx2 x d (Π(pi) = 3.14 , r = Radius, d = Average Depth)
In Cubic Meters (Meteric)
Radius in meters x Radius in meters x average depth in meters x 3.1428 = Volume in metres cubed
In Gallons (Imperial)
Radius in feet x Radius in feet x average depth in feet x 6.25 x 3.1428 = Volume in gallons
Typical Volumes For Circular Above Ground Pools with an average depth of 39 Inches
(1 meter)
| Diameter In Feet |
Diameter In Meters |
Volume in Gallons |
Volume in M3 |
| 10 |
3.048 |
1600 |
7.29 |
| 12 |
3.65 |
2301 |
10.46 |
| 15 |
4.57 |
3608 |
16.40 |
| 18 |
5.48 |
5187 |
23.58 |
Volume Conversion
220 gallons = 1 M3 = 1000 litres
Swimming Pool Dosing Rates
Dosing rates are expressed in Metric Units, we recommend that a suitable dedicated graduated plastic jug is used to measure liquids and a digital scales that measures in grams is used for accurate measurement of powders.
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