Pipe Flow Calculator (Hazen-Williams)
This calculator is designed for engineers and professionals working in fluid mechanics to determine the flow of water in pipes using the Hazen-Williams equation.
Calculator
Results
Head Loss (ft)
0.00
Data Source and Methodology
All calculations are strictly based on the Hazen-Williams equation.
The Formula Explained
Head Loss (ft) = 0.002083 x L x (100/C)^1.85 x (GPM^1.85) / (D^4.8655)
Glossary of Terms
- Pipe Diameter: Internal diameter of the pipe in inches.
- Flow Rate: Volume of fluid passing through the pipe per minute.
- Pipe Length: Length of the pipe through which the fluid is flowing.
- Friction Factor (C): A coefficient representing the pipe's roughness.
Frequently Asked Questions (FAQ)
What is the Hazen-Williams equation?
The Hazen-Williams equation is used to calculate the pressure drop or head loss in a pipe due to friction.
What is the friction factor (C)?
The friction factor (C) is a coefficient that characterizes the roughness of the pipe's interior surface.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- Home — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/ - Engineering — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/engineering - Mechanical Engineering — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/subcategories/mechanical-engineering - Duct Sizing Calculator (Equal Friction Method) — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/duct-sizing - Chiller Load Calculator — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/chiller-load - Psychrometric Chart Calculator — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/psychrometric-chart - Fin Heat Transfer Calculator — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/fin-heat-transfer - Chain Drive Design Calculator — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/chain-drive-design
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.