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750 ml Bottle Measurements: Ounces, Fifths, Fill Rules and Boxes
A 750 ml bottle holds 25.36 US fluid ounces, about 3.17 US cups, and it is the bottle size that replaced the old US fifth. It is on the lists of sizes that federal rules allow for both spirits and wine. Those rules fix how much the bottle holds and how full it must be, not how tall or wide it is. So when you order custom wine boxes or a spirits carton, measure the bottle itself.
750 mL in Ounces, Cups and Other Units
| 750 mL equals | Amount |
|---|---|
| US fluid ounces | 25.36 |
| Imperial (UK) fluid ounces | 26.40 |
| US cups | 3.17 |
| US pints | 1.59 |
| US gallons | 0.198 |
| Liters | 0.75 |
Computed from NIST’s conversion factors, read in October 2026.
Why a 750 mL Bottle Is Called a Fifth
A fifth of a US gallon is 757.08 mL, using NIST’s gallon of 3.785412 liters. That is 7.08 mL more than today’s 750 mL bottle, about a quarter of a fluid ounce. Wikipedia’s article on the unit says the fifth was the usual US bottle for spirits until 1980, and that 750 mL superseded it and is sometimes called a metric fifth. The federal spirits rule still exempts imported spirits bottled, or entered into customs custody, before January 1, 1980 from today’s metric sizes.
The US Sizes Around 750 mL

The Alcohol and Tobacco Tax and Trade Bureau (TTB) sets the sizes, called standards of fill, in which wine and spirits may be bottled. As read in October 2026, the spirits list has 25 sizes, and the wine list has 25 sizes up to 3 liters plus larger containers in even liters:
| Size | Spirits (27 CFR 5.203) | Wine (27 CFR 4.72) |
|---|---|---|
| 700 mL | Allowed | Allowed |
| 710 mL | Allowed | Not listed |
| 720 mL | Allowed | Allowed |
| 750 mL | Allowed | Allowed |
So a 700 mL bottle is on both US lists. For the full lists, see TTB’s spirits sizes and the wine rule at 27 CFR 4.72.
How Full a 750 mL Bottle Must Be
Headspace is the empty space above the liquid. TTB caps it as a share of the bottle’s total capacity after closing:
- Spirits: no more than 8 percent, for containers of 200 mL or more (27 CFR 5.202).
- Wine: no more than 6 percent, for 187 mL or more (27 CFR 4.71).
Worked through for a 750 mL fill, a spirits bottle can hold at most about 815 mL in total, and a wine bottle about 798 mL. A distinctive liquor bottle approved by TTB is exempt from the spirits headspace and design limits.
The spirits rule also reaches the box. It says a carton “may not be so designed as to mislead purchasers as to the size of the bottle it contains.” So a spirits carton should not suggest a bigger bottle than the one inside.
How Many Glasses or Shots in a 750 mL Bottle

NIAAA, the federal alcohol research institute, defines a US standard drink as about 0.6 fluid ounces of pure alcohol. Its examples include 5 fluid ounces of wine at 12 percent and 1.5 fluid ounces of spirits at 40 percent. Using those pours:
- Wine at 12 percent: 25.36 ÷ 5 = about 5.07 standard drinks.
- Spirits at 40 percent: 25.36 ÷ 1.5 = about 16.9 standard drinks.
NIAAA notes that these amounts may not match the pours people actually serve, and a stronger or weaker drink changes the count.
Boxes for 750 mL Bottles
Measure the bottle’s height with the closure on and its widest diameter, then size the box from those numbers rather than from the 750 mL on the label, whether it is a printed carton or one of our cardboard wine boxes. An insert holds the product in one position rather than letting it shift in transit. Tell us what goes inside and we will confirm which materials suit it at quote.
Frequently Asked Questions
How many ounces are in a 750 ml bottle?
25.36 US fluid ounces, or 26.40 imperial fluid ounces.
Is a 750 ml bottle a fifth?
It replaced the fifth and is sometimes called a metric fifth. A true fifth of a US gallon is 757.08 mL, about 7 mL more.
How many glasses of wine are in a 750 ml bottle?
About 5 standard 5 ounce glasses of 12 percent wine, using NIAAA’s standard drink.
How many shots are in a 750 ml bottle?
About 16.9 pours of 1.5 ounces, which is 16 full pours with a little left over.
How tall is a 750 ml bottle?
The rules fix the volume, not the height, so it depends on the bottle. Measure your own bottle, with its closure, before you order a box.
