Proof & Pour — The Craft Cocktail Calculator By Remy Voss · Save Results

KegBatch Calculator

How many cocktails will your kegerator actually serve? Find out in 30 seconds.

Total Servings
Cost / Drink
Days of Supply

How the Math Works

Batching cocktails for a kegerator is volume math — nothing more. You need to know how much liquid you have, how much goes in each glass, and what it costs. Here's the breakdown:

Total Servings = Batch Volume (oz) ÷ Serving Size (oz)
Cost Per Drink = Total Bottle Cost ÷ Total Servings

For a 9.5L Cornelius keg filled with batched Negronis at a 3 oz pour, you get ~107 servings. If your bottles cost $60 total, that's $0.56 per cocktail — compared to $16–$18 at a bar. The math is the same for Manhattans, Martinis, Boulevardiers, or any stirred cocktail you can batch.

Carbonation adds a variable: a kegerator with CO₂ injection keeps batched cocktails fizzy for weeks. Without it, stirred cocktails on tap still work — they just come out still, like they would from a mixing glass. Either way, you're pouring bar-quality drinks in 10 seconds flat.

What Counts as "Batchable"?

Any cocktail without fresh citrus or egg whites can be batched and kegged. That means Negronis, Manhattans, Martinis, Boulevardiers, Old Fashioneds, Sazeracs, and Vespers are all fair game. Avoid batching anything with lime or lemon juice — it oxidizes within hours. Add fresh elements at serve time if needed.

What Your Results Mean

Your supply status tells you whether you need more batch — or whether you've got room to invite more people.

Plenty — You're Set

120%+ of what your guests need. You've got buffer for extra pours, late arrivals, or heavier drinkers. This is where you want to be for a stress-free party.

Tight — Cutting It Close

100–119% of need. Technically enough, but one extra guest or a heavy pourer and you're pouring light. Consider adding a backup bottle or reducing pour size to 2.5 oz.

Short — Not Enough

80–99% of need. Some guests will go without, or everyone gets smaller pours. Either scale up your batch or add a second cocktail option to spread demand.

Way Short — Double It

Below 80%. You need at least one more batch. For a party of 20 drinking 3 Manhattans each, a single 5L mini keg won't cut it — you need 19L minimum.

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