WHAT DO YOU MEAN, 1 FLUID OUNCE OF WATER DOESNT WEIGH 1 OUNCE

America are you OK over there???

WHAT DO YOU MEAN, A FLUID OUNCE IS DIFFERENT IN THE US AND UK

AND THEN THE US HAS A THIRD DIFFERENT FLUID OUNCE

Okay apparently the US and UK use the same ounce for weight, and the UK fl oz is 1 oz weight of water, but the US fl oz is slightly different and is apparently based on how wine was measured in the UK pre-1824???

everything I find out about imperial measurements just makes me more perplexed

@daisy If it makes you feel better, I've been dealing with it for my whole life and I still have to double check how many ounces are in each unit because we just use mass and volume seemingly at random.
@coderanger The ability to convert between units in my head is something I definitely take for granted
@daisy Behold this cursed thing
@coderanger @daisy “biblically accurate imperial measures poster” 🙅‍♀️
@itgrrl @coderanger @daisy was gonna say, alt text slightly inaccurate, it clearly resembles the classic Sefirot and one imagines that’s not an accident
@bitprophet @coderanger @daisy I was riffing on these sorts of “biblically accurate angels” memes & wasn’t aware of the Sefirot, but I see the resemblance

@coderanger To be fair, tsp/tbsp/cup are still used over here, but they’re defined in terms of mL. (1 tsp = 5mL, 1 tbsp = 20mL, 1 cup = 250mL.)

Interestingly, the Australian metric tablespoon is 20mL but the international metric tablespoon is 15mL. So yeah, we are not entirely free of sin over here.

@coderanger @daisy An old manager pointed out to me that for most practical purposes, everything (in cooking, at least) has about the same density as water.

Which would make sense for the UK floz, but he was a USAian...

@FunkyBob @coderanger The difference is like 4% so it’s probably within tolerance for home cooking I guess?

Also some digital kitchen scales do have a mode you can set them to that measures (presumably US) fl oz of water too