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WATER CALCULATOR

Garden irrigation calculator

Estimate water volume and the usage charge for garden irrigation.

Enter amounts in the same currency throughout. Nothing is sent to our server.

How this calculation works

Flow × minutes × uses per day × days gives litres. Divide by 1,000 and multiply by the water price per cubic metre. Enter the combined flow rate of sprinklers that run together and the number of watering sessions per day. Sewer, fixed fees and heating costs are excluded.

Before you use the result

This is an illustrative estimate, not a provider quote or your actual bill. Enter your current rates and charges from your plan or latest statement. Prices, billing rules and coverage can change.

Find your provider

Thames Water · Houston Water · Search all providers

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