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Calculator results are for reference only. They do not constitute engineering, safety, or compliance advice.
Review critical designs
Critical designs must be reviewed by a qualified engineer. Check the inputs, units, assumptions, equipment documentation, and applicable requirements before using a result in a design, installation, or operating decision.
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The formulas and constants are based on publicly available standards and textbook relationships. They may not apply to every situation. Simplified models cannot account for every material, operating condition, or equipment characteristic.
The Methodology page explains the site's unit conventions, rounding, and common limitations.
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