Fact-Checking Policy

Every figure published on mgtomlcalculator.org goes through the same two-step check before it ships: a sourcing check against a recognised standards body, and a mechanical computation check that removes hand-entry from the process entirely.

Sourcing Check

Density and unit-definition figures are checked against published constants from the International Bureau of Weights and Measures (BIPM) and the National Institute of Standards and Technology (NIST), the same two organisations named throughout the site's reference sections. Where NIST and BIPM figures differ by less than the rounding this site already uses — water's density at various temperatures is the clearest example — we state which temperature a figure is quoted at rather than picking one number and hiding the nuance.

Computation Check

No cell in any table on this site — the main conversion table, the density reference table, the cooking chart — is typed in directly. Each one is computed at build time as mass divided by the density shown in that column's or row's own header, from the same constants displayed elsewhere on the page. That means a reader can reproduce the entire table by hand with an ordinary calculator and the density figures we publish; there is no separate hand-maintained dataset a table value could silently drift away from. The interactive calculator runs the identical formula live in the browser, so a table cell and a calculator result for the same inputs will always agree.

Corrections

Corrections raised through the site's editorial standards are checked against the original BIPM or NIST source before anything changes, and once confirmed, the fix is applied to the underlying constant rather than to one table in isolation — which is what keeps every occurrence of a figure consistent after a correction. The people behind this site are described on the About page, and the conversion calculator this policy covers is on the homepage.