What are the standard wine bottle sizes? A standard wine bottle holds 750 ml (25.4 oz). A half bottle is 375 ml, a split or piccolo is 187.5 ml, and a magnum is 1.5 L, the same as two standard bottles. Large formats go up to the 15 L Nebuchadnezzar, which holds 20 bottles.
Most of the big bottles carry biblical names, and a few names mean different sizes in Champagne and Bordeaux. This chart lists every common size with its volume, standard-bottle equivalent, glasses, and alcohol content.
Wine bottle sizes chart
| Name | Volume | US fl oz | Standard bottles | 5 oz glasses |
|---|---|---|---|---|
| Split or piccolo | 187.5 ml | 6.3 | ¼ | 1 |
| Half bottle (demi) | 375 ml | 12.7 | ½ | 2.5 |
| Standard | 750 ml | 25.4 | 1 | 5 |
| Litre | 1 L | 33.8 | 1⅓ | 6.8 |
| Magnum | 1.5 L | 50.7 | 2 | 10 |
| Double magnum, or Jeroboam in Champagne | 3 L | 101.4 | 4 | 20 |
| Rehoboam (Champagne), or Jeroboam in Bordeaux | 4.5 L | 152.2 | 6 | 30 |
| Methuselah, or Imperial in Bordeaux | 6 L | 202.9 | 8 | 40 |
| Salmanazar | 9 L | 304.3 | 12 | 61 |
| Balthazar | 12 L | 405.8 | 16 | 81 |
| Nebuchadnezzar | 15 L | 507.2 | 20 | 101 |
Glasses use a 5 oz (148 ml) pour, which is the US standard drink serving for 12% wine. At home, pours are often bigger. For pour-by-pour counts, see how many glasses of wine are in a bottle.
Champagne and Bordeaux names differ
The 3 L bottle is a Jeroboam in Champagne and Burgundy but a double magnum in Bordeaux. In Bordeaux, "Jeroboam" usually means a larger bottle of 4.5 L or 5 L, which Champagne houses call a Rehoboam. When you order a Jeroboam, check the litres on the label rather than relying on the name.
What is a split of wine?
A split, also called a piccolo or quarter bottle, holds 187.5 ml. That is a quarter of a standard bottle and about one generous glass. You mostly see it for Champagne, prosecco, and airline wine.
How many ounces are in a bottle of wine?
Divide millilitres by 29.57 to get US fluid ounces.
- 750 ml bottle: 750 ÷ 29.57 = 25.4 oz
- 375 ml half bottle: 12.7 oz
- 1.5 L magnum: 50.7 oz
- 3 L box or double magnum: 101.4 oz
A 3 L wine box holds the same as four standard bottles, which is why a box can last much longer than it looks.
In the US, the Alcohol and Tobacco Tax and Trade Bureau (TTB) sets the sizes wine may be sold in. It expanded the list in 2020 and again in 2025, so you may see sizes that are not in this chart, especially cans.
How much alcohol is in each wine bottle size?
One UK unit is 10 ml of pure alcohol. One US standard drink is about 17.7 ml (0.6 fl oz).
| Bottle | UK units at 12% | UK units at 13.5% | US standard drinks at 12% |
|---|---|---|---|
| Split (187.5 ml) | 2.3 | 2.5 | 1.3 |
| Half bottle (375 ml) | 4.5 | 5.1 | 2.5 |
| Standard (750 ml) | 9.0 | 10.1 | 5.1 |
| Litre | 12.0 | 13.5 | 6.8 |
| Magnum (1.5 L) | 18.0 | 20.3 | 10.1 |
| Double magnum (3 L) | 36.0 | 40.5 | 20.3 |
A standard bottle of 13.5% red is about 10 UK units, more than two-thirds of the UK weekly guideline of 14 units. For more on single bottles, see how many units are in a bottle of wine.
The formula for any bottle
UK units = ml × ABV ÷ 1,000
US standard drinks = fluid ounces × ABV (as a decimal) ÷ 0.6
Example 1: UK units in a magnum of 13% red
1,500 × 13 ÷ 1,000 = 19.5 units
Example 2: US standard drinks in a half bottle of 14% wine
12.7 oz × 0.14 = 1.78 oz of pure alcohol, and 1.78 ÷ 0.6 = 3.0 standard drinks
Example 3: glasses from a 3 L box at 175 ml
3,000 ÷ 175 = 17.1 glasses, each 2.1 units at 12% ABV
The alcohol units calculator and the standard drink calculator handle any bottle and strength.
Why bottle size matters when you track
- Half bottles help with pacing. Opening a 375 ml bottle sets a natural stop at 2.5 glasses.
- Magnums hide volume. A magnum shared by four people is still 2.5 glasses each, about 4.5 units at 12%.
- Boxes are hard to judge. There is no visible level, so a 3 L box can be gone faster than expected. Writing down glasses as you pour is the only reliable way to know.
[Alcohol Tracker°](/) logs each glass with its size and ABV on iPhone or Apple Watch, so a bottle or box turns into a weekly total.
Never drive after drinking wine, whatever the bottle size. Plan a sober lift, a taxi, or public transport.
Frequently Asked Questions
What is the standard wine bottle size?
The standard wine bottle holds 750 ml, which is 75cl or 25.4 US fluid ounces. It pours five 5 oz glasses or about four 175 ml glasses.
How big is a magnum of wine?
A magnum holds 1.5 litres, the same as two standard bottles. That is 50.7 oz, or about ten 5 oz glasses.
How many ml is a half bottle of wine?
A half bottle, also called a demi, holds 375 ml or 12.7 oz. At 12% ABV it contains 4.5 UK units or about 2.5 US standard drinks.
How big is a Jeroboam?
In Champagne and Burgundy, a Jeroboam is 3 litres, or four bottles. In Bordeaux, the name usually refers to a 4.5 or 5 litre bottle, so check the label.
What is the biggest wine bottle?
Common large formats stop at the 15 L Nebuchadnezzar, which equals 20 standard bottles. A few rarer names exist above it, such as the 18 L Melchior, but they are seldom made.
The quick answer
A standard wine bottle is 750 ml (25.4 oz). A split is 187.5 ml, a half bottle 375 ml, a magnum 1.5 L, a double magnum or Champagne Jeroboam 3 L, and a Nebuchadnezzar 15 L. At 12% ABV, a standard bottle contains 9 UK units or about 5 US standard drinks.
Sources: Federal Register: Standards of Fill for Wine and Distilled Spirits (2025), NIAAA: What is a standard drink?, NHS alcohol units, and the UK Chief Medical Officers' low-risk drinking guidelines.
Keep exploring
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