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Cocktail Ratio Calculator

Calculate classic cocktail ingredient ratios and scale recipes by serving count. Spirit, modifier, and mixer proportions for balanced drinks.

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Inputs that matter
Cocktail, Serving Size, Number of Servings
Output to expect
Cocktail Ratio Calculator
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Classic Ratios

Memorize foundation ratios. Daiquiri = 2 oz spirit, 1 oz lime, 1 oz simple. Scale all components equally.

Daiquiri/Margarita: 2:1:1 (spirit:sweet:sour) | Old Fashioned: 2:1:2 (spirit:sugar:bitters dash)

Batch Scaling

Linear scaling works for all ingredients. 20 Negronis (1:1:1): 20 oz gin, 20 oz Campari, 20 oz vermouth.

Ingredient = Single serve amount × Number of servings

Dilution Factor

Pre-batch cocktails for service add 20–25% water to simulate shake/stir dilution. Pre-diluted batches serve still or over ice.

Batch dilution ≈ 20–25% water from stirring/shaking

Updated: July 2026

Example Scenarios

1:1:1 ratio at 3 oz each: 30 oz gin, 30 oz Campari, 30 oz sweet vermouth. Add 18 oz water for pre-dilution.

2 oz bourbon, 0.25 oz simple syrup, 2 dashes Angostura bitters, orange peel. Scale ratio for whiskey preference.

Classic 2:1 gin to vermouth (dry) or 5:1 (very dry). Calculate vermouth from gin volume using ratio.

FAQ

Many sours follow 2:1:1 (spirit:sweet:citrus). Negroni/Manhattan: 1:1:1 or 2:1:1. Old Fashioned: spirit with sugar and bitters. Ratios vary by classic recipe.

Scale all ingredients linearly. Add 20–25% water for dilution. Chill thoroughly. Citrus juices add fresh day-of, not in advance batch.

Yes for stirred/spirits-forward drinks served up. Not needed for drinks served over ice (dilution from ice melt).

Dash ≈ 0.03 oz (1 ml). Scale dashes linearly: 2 dashes × 30 drinks = 60 dashes ≈ 2 oz bitters.

Ratios stay constant. Only total volume changes. Exception: very large batches may need slight adjustment for perceived sweetness (dilution variance).

About Cocktail Ratio Calculator

Classic cocktails follow consistent spirit-modifier-mixer ratios that scale linearly. Enter base recipe proportions and desired serving count or total volume to calculate precise ingredient amounts for single serves or batch preparation.