Formula methodology

Every result should expose its assumptions.

RoomFact centralizes units, planning assumptions, formula versions, limitations, and source status so corrections propagate consistently.

ToolVersionStatusReviewed

Source-verification queue

Claims that remain explicitly provisional.

SV-001 / high

Baseline box equivalents per room and household member

Replace the rough baseline with an approved moving-industry source or direct dataset before broad promotion.

moving-box-calculator

SV-002 / medium

1.2x-1.8x diagonal comfort range

Confirm against current display-manufacturer or standards-body guidance and document resolution assumptions.

tv-viewing-distance-calculator

SV-003 / medium

General reach and walkway targets

Add approved accessibility and interior-planning references without presenting them as code requirements.

furniture-spacing-calculator

Units

Canonical metric calculations

Length formulas calculate in centimeters, areas in square meters, and volumes in cubic meters. Imperial entries are converted before calculation and formatted back for the result.

Confidence

Planning screen, not hidden certainty

Each page labels general assumptions and limitations. Safety, code, structure, installation, and delivery guarantees remain outside the calculator.