Conversion standards

Linear conversions use a shared base unit and published international definitions. Temperature scales use their required offsets and multipliers.

Important distinctions

US and Imperial liquid units are labelled separately. Decimal storage units use powers of 1,000 while IEC binary units use powers of 1,024. Cooking cups are volume, not ingredient mass.

Rounding

Calculations retain JavaScript numeric precision. Displayed answers use up to twelve significant digits so that everyday results remain readable.