How we source and check weights

We start from public articles, keep the source URL and a short weight statement, and convert values in code rather than by hand.

Every published item must pass a range check, a category check and a translation completeness check. Items with unclear or non-mass measurements are excluded.

Weights still vary in the real world. This site is a research and comparison aid, not a certified measurement service. If you spot an error, the source link and project feedback channel are the fastest way to correct it.