Hosting math is half labels and half folklore. A bottle shows 750 mL; the recipe card says "five-ounce pours"; someone asks how many glasses that is. Enter milliliters; read glasses and 750 mL bottle equivalents. Good for a shopping list sanity check, not for sommelier service rules.
Glass pours vary in real life. The page uses a fixed glass size baked into the math—adjust your expectations if your stems are generous.
How many glasses in 750 mL of wine is the default bottle—still argued about when pours are heavy.
Bottles, glasses, and the metric line
Beer cans use a different page—355 mL in cans—because serving sizes differ. Converting mL to cups for a U.S. recipe? 750 milliliters in cups is volume conversion, not glass counts.
Water weight from the same liter idea is separate—weight of 2 liters of water—mass, not party planning.
- Standard 750 mL bottle math is built in; magnums need manual scaling.
- Glass size is fixed in the page—real pours vary.
- Drink responsibly; numbers are for planning only.
Ordinary hosting arithmetic, not alcohol guidance or legal drinking advice.