Accuracy before volume.
A page earns publication by solving a distinct task, exposing its assumptions and stating its limits.
Original utility
We do not publish location, room-size or keyword variations that merely repeat the same tool. A new URL needs a distinct task, formula, dataset or guide.
Human-readable math
Important formulas, units, defaults and rounding choices appear in visible text. Structured data never substitutes for useful page content.
Source hierarchy
Product labels and primary organizations are preferred for product-dependent or professional claims. Basic arithmetic is made reproducible. See Sources.
Automation disclosure
Automation may support consistency checks, internal linking and formatting. Published responsibility remains with BetterHomeHabits, and materially automated models must expose their assumptions.
Commercial separation
Future advertising or affiliate relationships must be disclosed and may not change calculator math or masquerade as independent measurements.
Corrections
Material formula, source and safety corrections are prioritized. Updated dates reflect significant changes, not cosmetic freshness.