Liquor/Bar inventory... Need a little help plz.

Fluid ounce measures volume, ounce measures weight. They aren't equivalent.

What's your use case?

The term jigger is an archaic, white supremacist term used by the patriarchy to denigrate women all across the globe, when will this racist, hateful word be banned?

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The term jigger is an archaic, white supremacist term used by the patriarchy to denigrate women all across the globe, when will this racist, hateful word be banned?

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Jigga, please!

One gallon of spirits weighs about 125.5 oz.
One gallon is 128 fluid oz.

1.5 fl oz. of bourbon weighs 1.47 oz. Not equivalent but close.

Partender. Take inventory in minutes with the camera on your phone.

There are pour spouts that measure the amount of liquid you pour.

LINK

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Go by liquid volume. Not weight. I've done both in the past, it all depends on how precise you want your inventory count to be. If you want to be super precise and down to the penny, there are companies that will do your inventory for you by weighing bottles. They also have all of the information on how much each specific bottle weighs which would take alot of time to do on your own. 1L bottle of jack has a different weight than 1L bottle of goose. Also 1.5oz of vodka would weigh less than 1.5oz of baileys for example. If you just want a fairly accurate count, do the eyeball scale where 1/2 a bottle is 0.5, almost full bottle is 0.9 etc.

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Yes Sir... That is exactly the issue that I am trying to cover... I prefer the bottle Point system.. 0.5 is half a bottle... But the other side says that weighting the bottle is proper...

We have went round and round about the Jigger volume vs. weight... To me it is very simple. 1 liter is 33 fluid OZ's.. So a bottle at .5 is 16.5 oz sold or 11 Jiggers.

I don;t have a bottle of Jack weight with me... But there is something about the weight that I can;t put my finger on...

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Fluid ounce measures volume, ounce measures weight. They aren't equivalent.

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Sometimes they are, depends on the density of the liquid.

A fluid ounce of water, for example, weighs 1.04 oz.

While a fluid ounce of whiskey weighs 0.98 oz.

An ounce of gasoline weighs 0.75 oz., while an ounce of whole milk weighs 1.07 oz.

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Yes Sir... That is exactly the issue that I am trying to cover... I prefer the bottle Point system.. 0.5 is half a bottle... But the other side says that weighting the bottle is proper...

We have went round and round about the Jigger volume vs. weight... To me it is very simple. 1 liter is 33 fluid OZ's.. So a bottle at .5 is 16.5 oz sold or 11 Jiggers.

I don;t have a bottle of Jack weight with me... But there is something about the weight that I can;t put my finger on...

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Are you trying to win an argument with a co-owner or something?

Again, can you describe your use-case? Just basic inventory? How accurate do you want to be? Do you have multiple servers and need to know who poured how much?

If you want high accuracy, just weigh the bottles. I'm more than certain there is plenty of software out there that will calculate each bottle's level based on weight alone. And if not, it would be very simple to write. It doesn't even matter if you don't know the full/empty weight of each bottle or the specific gravity of each liquor right away, you will be able to calculate all that as you collect data. With just a series of weights, with full and empty weights labeled appropriately, it's really simple to figure the fluid ounces remaining based on any weight in between.