Hydronic design reference
Hydronic Pipe Size Calculator
Sizes chilled-water and heating-water pipework from design flow, velocity and pressure-loss criteria.
Interactive calculator
Enter your project parameters below to calculate an indicative result.
Important guidance
This calculator provides guidance and an engineering estimate only. It does not replace project-specific design, verification or professional engineering advice. Confirm inputs, assumptions and the applicable edition of each referenced standard before relying on a result.
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