Where
Manufacturing › Units of measureWho
Manufacturing Units of measure — View reads them; Edit adds, changes and archives your company's own.The page
General conversions hold the ones shipped for every company (kilogram and gram, tonne, litre and millilitre, metre, centimetre and millimetre, dozen and piece) and your own; One item's conversions hold the ones for one item. Each row says the Rule, The other way and Whose it is.

Convert
Type a Quantity, choose From and To and, for an item's own units, the item; press Convert. The answer goes through steps when it must: 3 boxes of a screw (200 pieces a box) are 50 dozen.

Add a conversion

A unit that is not in the list yet is added in Inventory › Settings › Units (Add a unit opens it for who may). The same pair is never written twice, either way round.
Questions
Where is “Units of measure” in Zyntra OS?
Manufacturing › Units of measure
Who can use “Units of measure”?
Manufacturing Units of measure — View reads them; Edit adds, changes and archives your company's own.

