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In the store, I sometimes encounter containers (e.g., beer, water, shampoo) with a volume of 618ml. Why exactly this number? (lemm.ee)

submitted 9 months ago by [email protected] to c/[email protected]

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[–] [email protected] 76 points 9 months ago* (last edited 9 months ago) (8 children)

618ml 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.

[–] [email protected] 43 points 9 months ago (7 children)

I think you're on the right track. My guess would be that they have a 3% tolerance (uncertainty, idk) with filling so they fill 600 ml but statistically it might be as much as 618. Putting 618 on the packaging lowers the price per liter a little, compared to 600.

[–] [email protected] 8 points 9 months ago

This is pretty compelling. I vote "solved".

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