Even regional differences in things.

If you say "one bar of butter", "one stick of butter", and "one pat of butter", these can all refer to three different things or the same thing, depending on where you are located. East Coast and West Coast US butter are sold in different size blocks (though both are "8 tbsp") however sometimes you'll find 4tbsp sticks on the west coast that look like 1/2 an East Coast stick that I've heard called pats.

Then Europe comes along and all the fancy European butters are made in 250g blocks, which are bigger than the 110g sticks but smaller than the package of 4 of them! This always confused my European friends when I'd say "oh I'll toss in a stick of butter" because they thought I was adding a quarter kilo of butter.

Here in the UK, there's a trend of selling 200g blocks for certain brands that ruin recipes. We have to be careful to avoid those and stick to the 250g ones. Yes, I know we could cut 50g of another block but then we'd need to measure, and we'd have an open brick to keep. It steals part of the joy of baking, forcing us to think instead of feel.

Meanwhile, here in Canada I've never seen "sticks of butter", only the large bricks. They're the same size as American ones, and labeled as 454g, but I only recently found out that in some places in the US, they cut them in fours. Before that, the phrase didn't mean anything to me, and I thought it referred to throwing the whole brick in. The smaller 250g packages also exist, but they're rare.

I can't guarantee that the sticks don't exist anywhere, but I've lived in several cities all over the country and I've never spotted anything like that

> If you say "one bar of butter", "one stick of butter", and "one pat of butter", these can all refer to three different things or the same thing, depending on where you are located. East Coast and West Coast US butter are sold in different size blocks (though both are "8 tbsp") however sometimes you'll find 4tbsp sticks on the west coast that look like 1/2 an East Coast stick that I've heard called pats.

Wat. Never in my life have I seen butter in the (mostly western) US sold in anything other than 1/4 lb sticks. There are long, skinny sticks and short, fat sticks, but they're always 1/4 lb. If you say a "pat" of butter, you're getting roughly a 1/2 Tbsp of butter from me. Definitely not half a stick!

One recipe in my family calls for butter "the size of two walnuts".

I'd say (from northern Europe) that 500 g [1] is a standard pack of butter, even though they've also added the smaller "half packs" of 250 g. For professional use, there's also the full kilogram. Whoa that has got to be expensive these days.

[1]: https://www.arla.se/produkter/svenskt-smor/

Also the tbsp and fluid ounce differ by 4% in the UK vs USA. This offsets the nominal 25% difference in pints, with UK pints having 20 oz and US pints having 16, closing the gap a bit to an actual 20.095% between the pints.

>bigger than the 110g sticks

There are four 110g sticks per package because each one is one quarter of the classic one pound (454g) package of butter, rounded down.

The European equivalent is a 125g package, which is flatter and wider than your square-profile 110g sticks.