Sizing pipework
Made Simple.

Cold water pipe calculator for Apple and Android.

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Pricing

Standard and premium options for individuals and companies.

Standard

$20 /year
Standard water pipe calculator
  • Calculate copper and polyolefin pipe sizes
  • Calculations to AS/NZS 3500.1

Premium

$25 /year
Premium water pipe calculator for business
  • Calculate copper and polyolefin pipe sizes
  • Calculations to AS/NZS 3500.1
  • Displays pipe flows for all copper and polyolefin pipe sizes
  • Save calculations for future reference
  • Share calculations as a PDF
  • Multiple user discounts available

Trial

$0
7 day trial of Standard water pipe calculator

User guides

Tutorials for using Water Pipe Calculator.

Calculate a house main supply

The simple 3 step guide to calculating the main cold water supply for a house.
Open the house main supply user guide PDF

Calculate the main supply for 2 units

The 5 step guide to calculating the main cold water supply for 2 units.
Open the unit main supply user guide PDF

Calculate the pipework for a whole house

A step by step guide to calculating the internal pipework and main supply for a house.
Open the whole house design user guide PDF

Calculate fixed flow commercial

A 3 step guide to calculating the main cold water supply for a commercial application using fixed flows.
Open the fixed flow commercial user guide PDF

News

Industry news and information.

ABCB seeking plumbing subject matter experts.

Are you an expert in plumbing? The Australian Building Code Board (ABCB) is seeking subject matter experts to offer input on the National Construction Code. To find out more visit …

Queensland passes legislation on non-conforming building products.

During August Queensland became the first state to pass legislation addressing non-conforming building products. The Government industry web site notes the destinction between non-conforming and non-compliant products: Non-conforming building products …