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I'm not sure what you're saying is powers of 2, but if you mean that it's 568ml, that's a UK/Imperial pint; US is smaller.

It was actually university that taught me the millilitre size of a pint: the SU bars at my alma mater, Imperial, are named Metric & 568.

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Nah I'm talking about the US unit of volume being related to itself by powers of 2. 16oz to a pint, 8 pints to a gallon. Everything is just halves and doubles. I feel like that's legitimate and convenient. Can't say the same for the rest of the US system.

I think the US pint is something like 476ml (checked; it's 473), and the UK pint is 20 /slightly/ smaller than US oz instead of 16.

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