zeet@lemmy.worldtoAsklemmy@lemmy.ml•In the store, I sometimes encounter containers (e.g., beer, water, shampoo) with a volume of 618ml. Why exactly this number?English
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10 months ago618ml equates exactly to 600ml + 3% - maybe manufacturers add 3% on top because that’s the maximum allowable variance in quantities?
From a quick search, 412ml and 515ml both seem pretty common too.
Realcalc has an excellent RPN mode (enabled through Calculator Type in Settings). I’ve used it for the last six years or so (technically, in the premium version of the app).
Edit: Not open source - sorry, didn’t see the community!