Legal Metrology is that part of metrology which is subject to legal/regulatory control. It is defined in the International Vocabulary of Legal Metrology as that part of metrology relating to activities which result from statutory requirements and concern measurement, units of measurement, measuring instruments and methods of measurement which are performed by competent bodies.


The field of legal metrology relates to commercial transactions’ it seeks to ensure, at all levels, that the consumer is effectively receiving the amount agreed upon.