free bar tool
Cocktail batch calculator
Making drinks for a crowd? Pick a classic or type in your own recipe, set the number of servings, and get every amount in oz and ml, plus the water to add for dilution. No sign-up.
Your batch
Total batch
Water to add
Per drink
| Ingredient | Per drink | oz | ml |
|---|---|---|---|
| Water (dilution) | |||
| Total batch |
How the math works
- Scaling: each ingredient is multiplied by the number of servings. 1 US fl oz = 29.57 ml.
- Dilution: a stirred or shaken drink picks up water from melting ice. When you batch ahead, you add that water yourself. We assume about 20% of the drink's volume for stirred drinks and about 25% for shaken drinks. Move the slider to taste.
- Bitters: we count 1 dash as about 0.8 ml. That's a rough estimate, because dashes vary by bottle.
- Citrus: fresh juice tastes best the day it's squeezed, so batch citrus drinks close to serving time.
- Classic specs follow the IBA official recipes (iba-world.com). For batching, we swap the sugar in the Daiquiri (2 bar spoons) and Old Fashioned (1 sugar cube) for simple syrup, at our estimate of 15 ml and 7.5 ml. Adjust to taste.
Want a spreadsheet version with a bar inventory, or a planner for how much to buy? Get the free templates (no email needed).
Please drink responsibly, and only if you're of legal drinking age.
set up the bar
Batching for a crowd? Lay down a bar mat.
Knot & Style rubber bar mats are 18 x 12 in, with designs made for home bars, coffee stations and kitchen counters.