Editorial Policy

Sources and methods

Each calculator states its formula, assumptions, limitations and documentation date. Sources identify mathematical or workflow context; they do not endorse this website. Original derived methods are identified explicitly.

Reviews

Development and review use AI assistance. Automated numerical validation and AI-agent editorial, arithmetic and implementation follow-up reviews are attributed by their actual role. Calculator pages identify AI reviewers explicitly. An AI review is not a licensed human professional review or a guarantee of correctness. Wire-gauge and pool-product comparisons use restricted educational models with explicit inputs and prominent limits. Publication of those models is not human professional approval; installation, treatment and safety decisions still require qualified advice. The four previously held models were reassessed only after removing silent treatment defaults and unsupported action-oriented output. A documentation date is not professional certification.

Corrections

Use the report form to send an issue to the site owner. Confirmed changes are recorded with the release.

Independence

This site has no advertising, affiliate placements or sponsored results.