Editorial Policy

Standards for accurate, independent, and useful calculator content.

Accuracy first

Content must help a real decision, distinguish estimates from facts, and avoid keyword stuffing or mass-produced location and product pages.

Sources and review

Technical defaults need a reliable public source or a clear adjustable-example label. Material changes receive formula, test, link, and content review.

Commercial separation

Advertising, if enabled, must be identifiable and separated from inputs, calculate controls, and results. Commercial goals do not change calculation results.

Last reviewed: August 6, 2026