500ml to 440ml?
Edit: the 440 on the right, is the last of a can that I bought in a four pack. The 500 on the left, is one of three I bought as singles.
Packaged Guinness comes in 440 milliliters. Single cans of Guinness come in 500 mL.
Apparently, that’s how Guinness does it here in Canada.
And apparently, I lazily avoided any attempt to research or apply any level of critical thinking before posting.
A pint is 568ml.
Edit: the extra 30ml might be accounted for with the patented Guinness widget, a little ball of nitrogen gas that ruptures and forms a foamy head when the can is cracked.