Editorial policy
Transparent assumptions and a clear distinction between evidence, examples and remaining work.
Evidence labels
A source link supports only the scope stated beside it. A manufacturer homepage does not verify an entire catalogue, and an illustrative scenario is not a measured result. Owner observations must be described as observations, not controlled tests.
Verification scope
Calculation examples and form behaviour are checked separately from manufacturer specifications. A catalogue selection does not verify every specification; only individually supported fields are used automatically. An update date is not an independent expert review.
Independence and advertising
Results follow the published calculation and entered values, not an advertiser ranking. Advertising and any future commercial links must remain distinct from editorial explanations. Nothing on this page certifies consent-system compliance or advertising-platform approval.
Corrections
Report an issue with the page URL, entered values, observed result and a supporting source where available. Material changes should update the affected formula, explanation and regression example together. Contact: hello@wattcalclab.com.