Swimming Pool Size Calculator
Calculating Pool Volumes
Knowing your pool's volume is vital when making adjustments as all calculations and dose rates are based on it.
Here is a resource to help you and to convert units into those most useful to you. As mains water is supplied in Britain in cubic metres, start by measuring in metres to obtain an answer in cubic metres. Then use the calculator to convert this figure into litres, imperial gallons or US gallons.
1. Choose Your Pool Shape
2. Enter Pool Dimensions
3. Your Pool Volume Result
The Volume of Water
Convert into different units
IMPORTANT: Please note when using any of the dosing calculators that they are only a guide. Online Pool Chemicals accept no responsibility for any damage.
To increase Free Chlorine using Stabilised Chlorine Granules (maintain readings between 2 - 4ppm)
To increase Total Bromine using OPC Brominating Granules (maintain readings between 4-6 ppm)
Chlorine Shock Dose
For a weekly Shock Dose using OPC Chlorine Shock Granules (increase Free Chlorine to between 5 - 8ppm)
Non Chlorine Shock Dose
For a weekly Shock Dose using OPC Non-Chlorine Shock Granules