A standard 750 ml bottle holds about 25.4 fluid ounces, so you get about 5 glasses of wine in a bottle at a 5 ounce pour. Pour 6 ounces and you get about 4 glasses; pour 4 ounces and you get about 6. A magnum (1.5 L) doubles that to about 10 glasses.
How many glasses of wine in a bottle: the quick answer
The 5 ounce figure is not random. The NIAAA standard drink page defines one US standard drink as about 0.6 fluid ounces (14 grams) of pure alcohol, which is the amount in a 5 ounce glass of wine at 12% alcohol by volume. That makes 5 ounces the most common reference pour. The NIAAA also notes that standard drink amounts may not reflect customary serving sizes, which is why real pours at home and in restaurants vary.
Here is the math once, so you can redo it for any bottle:
- 1 US fluid ounce = 29.5735 ml
- 750 ml / 29.5735 = 25.4 fl oz
- 25.4 fl oz / 5 oz per glass = 5.1 glasses
In practice, call it 5 glasses.
Wine pour size by style
The WebstaurantStore guide to glasses per bottle lists typical pour sizes used in bars and restaurants.
| Pour type | Typical pour | Glasses per 750 ml bottle |
|---|---|---|
| Standard still wine | 5 oz | About 5 |
| Generous restaurant pour | 6 oz | About 4 |
| Smaller pour | 4 oz | About 6 |
| Sparkling wine (flute) | 4 to 4.5 oz | 5 to 6 |
| Fortified wine (port, sherry) | 3 oz | About 8 |
| Dessert wine | 2 oz | About 12 |
| Tasting pour | 2 to 3 oz | 8 to 12 |
Fortified and dessert wines get smaller pours because they are richer and usually higher in alcohol. The NIAAA counts 3 to 4 fl oz of fortified wine (around 17% alcohol) as one standard drink, compared with 5 fl oz of table wine.
Pouring a consistent glass at home
WebstaurantStore suggests pouring to the widest part of the bowl. With large glasses that line can hold more than 5 ounces, so measure 5 ounces of water into one glass once and note where it lands.
Wine bottle sizes and glasses per bottle
Bottle names and volumes below come from the Wine Folly bottle size chart. The glasses column is our own arithmetic at 5 ounces per glass, rounded to one decimal.
| Bottle | Volume | Standard bottles | Fluid ounces | Glasses at 5 oz |
|---|---|---|---|---|
| Piccolo or Split | 187.5 ml | 1/4 | 6.3 | 1.3 |
| Demi or Half | 375 ml | 1/2 | 12.7 | 2.5 |
| Standard | 750 ml | 1 | 25.4 | 5.1 |
| Magnum | 1.5 L | 2 | 50.7 | 10.1 |
| Double Magnum | 3 L | 4 | 101.4 | 20.3 |
| Jeroboam (still) or Rehoboam (sparkling) | 4.5 L | 6 | 152.2 | 30.4 |
| Methuselah or Imperial | 6 L | 8 | 202.9 | 40.6 |
| Salmanazar | 9 L | 12 | 304.3 | 60.9 |
| Balthazar | 12 L | 16 | 405.8 | 81.2 |
| Nebuchadnezzar | 15 L | 20 | 507.2 | 101.4 |
One naming catch: Wine Folly lists a still wine Jeroboam at 4.5 L but notes that a sparkling Jeroboam is 3 L, the same as a double magnum. WebstaurantStore lists the Jeroboam at 3 L. If a party plan depends on it, check the volume printed on the label rather than the name.
Glasses per magnum
A magnum holds 1.5 L, the same as two standard bottles, so expect about 10 glasses at 5 ounces, about 8 at 6 ounces, and about 12 to 13 at 4 ounces.
Party planning: guests, hours and bottles
This table is plain arithmetic, not a drinking recommendation. It assumes an average of one 5 ounce glass per guest per hour across the whole group (some guests will drink less or none) and 5 glasses per 750 ml bottle, rounded up.
| Guests | Hours | Glasses (guests x hours) | 750 ml bottles | Or magnums |
|---|---|---|---|---|
| 8 | 2 | 16 | 4 | 2 |
| 10 | 3 | 30 | 6 | 3 |
| 20 | 3 | 60 | 12 | 6 |
| 30 | 4 | 120 | 24 | 12 |
| 50 | 4 | 200 | 40 | 20 |
To adjust, change the glasses per hour assumption and divide by 5 again. For a sparkling toast only, plan on 6 flutes per bottle at about 4 ounces each.
A quick responsible hosting note: keep plenty of water and non-alcoholic options out, serve food, never serve anyone under 21, and make sure everyone has a safe ride home.
Storing magnums and keeping party bottles cold
Large formats need room
Magnums and larger bottles are wider and taller than a standard bottle, so they may not fit rack slots or fridge shelves sized for standard bottles. Two ways to handle them:
- Wall pegs sized for magnums. The VintageView Vino Pins Mag 1 (from $21.00) holds one 1.5 L bottle label forward and measures 5 x 15 x 4 inches with the bottle stored. The Vino Pins 2 Magnum kit (from $49.00) stores two 1.5 L bottles double deep, and the listing says it also works for Champagne bottles. For cork forward display, the Vino Rails 1 Magnum (from $43.00) holds one 1.5 L bottle per set.
- A wine fridge with flexible racks. Look for listings that mention removable shelves or large bottle support, and read capacity as a standard bottle number. Fewer bottles fit once you add magnums.
See more from VintageView if you are planning a full wall.
Wine fridges for party stock
For a 20 guest, 3 hour party you need about 12 bottles, ideally at serving temperature before the doorbell rings. These units are in stock:
- U-Line HWC024 24 inch Wine Refrigerator (from $2,159.00): the listing says it holds up to 38 bottles (750 ml) and that its racks accommodate a variety of bottle sizes including champagne and magnum bottles. Temperature range 34 to 60 degrees F.
- Marvel 24 inch Essential Wine Refrigerator MRWC224 ($1,699.00): stores up to 55 wine bottles on six full extension wire racks, 34 to 61 degrees F, rated for indoor and outdoor use.
- HomeRoots 34 x 24 inch Dual Compartment Wine Refrigerator ($1,319.99): 52 bottles on 5 removable shelves, with capacity listed in standard Bordeaux sized bottles. Two compartments let you run two different temperatures.
- Empava WC06D 55 inch Dual Zone Wine Fridge ($1,847.67): up to 116 bottles on 11 removable beech shelves; the listing says you can remove shelves for irregularly shaped bottles.
Shelf material matters too when bottles are big or heavy; our wood vs wire wine fridge shelves guide covers the tradeoffs. For layout ideas around the fridge, see home bar ideas for wine lovers. And if the party leaves you with half empty bottles, here is how long opened wine lasts. For the bigger picture on racks and cellars, start with our wine rack and cellar storage guide.
Frequently asked questions
How many glasses in a bottle of wine?
About 5 glasses at a 5 ounce pour from a standard 750 ml bottle, which holds about 25.4 fluid ounces. At 6 ounces you get about 4, and at 4 ounces about 6.
What is a standard wine pour size?
Five ounces is the common reference, and it matches the NIAAA definition of one US standard drink for wine at 12% alcohol. Sparkling pours run 4 to 4.5 ounces, fortified wines about 3 ounces, and dessert wines about 2 ounces.
How many glasses per magnum?
About 10 glasses at 5 ounces. A magnum is 1.5 L, the same as two standard bottles, or about 50.7 fluid ounces.
How many bottles of wine do I need for a party?
Multiply guests by hours to get glasses (if you assume one glass per guest per hour), then divide by 5. Twenty guests for three hours works out to 60 glasses, or 12 standard bottles. Adjust down if many guests will not be drinking.
Questions about storing wine for a crowd?
Our team can help you match a wine fridge or rack to your bottle sizes. We offer free freight shipping on orders of $999 or more, and a flat $200 shipping fee below that. Call 866-777-2590, Monday to Friday, 9AM to 6PM PST. Returns follow our return and refund policy.
