Wine is one of the few products sold in bottles named after Babylonian kings. Between the tiny split on your flight tray and the 15-litre Nebuchadnezzar that needs two people to pour, there is a full ladder of sizes, and the size genuinely changes how the wine ages and how the table feels. Here is the complete guide.
The Full Ladder
- Split (piccolo), 187.5ml. A single generous glass; the airline and celebration-fizz format.
- Half bottle (demi), 375ml. Two to three glasses. Perfect for solo dinners and expensive sweet wines.
- Standard, 750ml. The world’s default: five 150ml glasses.
- Magnum, 1.5L. Two bottles in one, ten glasses, and the collector’s favourite for ageing.
- Double magnum / Jeroboam, 3L. Four bottles. The names start getting biblical here.
- Rehoboam, 4.5L. Six bottles, mostly seen in Champagne.
- Methuselah / Imperial, 6L. Eight bottles; Methuselah in Champagne, Imperial in Bordeaux.
- Salmanazar, 9L. Twelve bottles, a full case in one vessel.
- Balthazar, 12L. Sixteen bottles.
- Nebuchadnezzar, 15L. Twenty bottles, named for the king of Babylon, and the reason sommeliers have strong forearms.
Why the biblical kings? Nobody knows for certain; the tradition emerged in Champagne in the 19th century, and the names stuck because they are unforgettable, which in marketing terms makes them perfect.
And why is the standard 750ml? The romantic story says it was one glassblower’s lungful of air; the practical one says it standardised centuries of trade between British merchants, who bought wine by the 900-litre cask, and French producers. In 1979 regulators made it official, and the world’s shelves have agreed ever since.
Size Changes the Wine
This is the part worth remembering: bigger bottles age more slowly. Ageing is driven partly by the whisper of oxygen through the cork, and a magnum holds double the wine under a similar sized cork, so every litre gets half the oxygen. The result is slower, steadier maturation and, collectors argue, greater finesse at the finish line. That is why magnums command more than twice the price of two bottles at auction, and why our wine ageing cheat sheet leans conservative for large formats. Half bottles run the same logic in reverse: they mature fast, so drink them young.
There are practical upsides too. A magnum chills nearly as fast as it impresses, one big bottle beats fumbling with two during dinner, and few things signal generosity like a large format landing on the table. Planning quantities for a crowd? Our party wine calculator does the maths, and the how much wine for a party guide covers the strategy. Just check your storage first: most racks and fridges are built for 750ml, a point our budget cellar guide makes before you fall for a Balthazar.
Frequently Asked Questions
What are the wine bottle sizes in order?
From smallest to largest: split (187.5ml), half bottle (375ml), standard (750ml), magnum (1.5L), double magnum or jeroboam (3L), rehoboam (4.5L), methuselah or imperial (6L), salmanazar (9L), balthazar (12L) and nebuchadnezzar (15L, twenty standard bottles).
Why do magnums age wine better?
A magnum holds twice the wine of a standard bottle under a similar sized cork, so each litre of wine receives roughly half the oxygen exposure. Slower oxygen intake means slower, steadier ageing, which is why collectors prize magnums for long cellaring.
How many glasses of wine are in a bottle?
A standard 750ml bottle pours five 150ml glasses, or six more modest 125ml pours. A magnum serves ten, and a half bottle two to three. For parties, one standard bottle per two guests for a dinner is a reliable rule of thumb.
Explore with Sommo
Whatever the format, the bottle deserves remembering. Scan any label with Sommo, log it in your cellar with its size noted, and Sommo’s drinking-window estimates help you judge when that magnum will finally be ready; the drinking window tool gives you a free preview. Your future self, opening the right bottle at the right time, will thank you.
Download Sommo free and keep track of every format in your rack.