Is a martini stronger than a beer?

Yes, substantially — 3 oz of 40% gin is ~1.2 standard drinks vs beer's 0.9–1.0, in a smaller, faster glass. Strength per sip matters as much as per volume.

Does shaking vs stirring change ABV?

The alcohol content is identical; dilution differs (shake ~20–25%, stir ~15–18%) — so shaken drinks land slightly weaker but colder and aerated.

What is "standard drink" where I live?

Definitions vary: US 14 g (0.6 oz), UK 8 g, Australia 10 g. The calculator uses the US unit — halve it for UK counting.

Equal parts gin (40%), campari (~25%), vermouth (~17%) → ~27% before dilution, ~21% after — roughly 1.8 standard drinks. The calculator handles multi-spirit builds by treating extra spirits as additional ABV lines.

Cocktail ABV & Standard Drinks Calculator

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How the ABV calculator works

What the numbers mean

ABV is alcohol as a share of the drink — cocktails run 12–30% before dilution, landing near wine strength after ice. A standard drink (US) is 0.6 oz of pure alcohol; the calculator converts your pour into that unit, which is the one health guidance actually speaks.

Dilution changes everything

Stirring adds 15–20% water, shaking up to 25% — the glass arrives weaker than the recipe math. That is not a loss; it is the design: cocktails are served at their diluted strength, and the calculator shows both states so the pitcher and the shaker agree.

Session planning, honestly

2–3 standard drinks across a 3-hour party is the standard planning figure per guest — the calculator multiplies by your servings field.
Food, water, and time move blood alcohol more than any recipe tweak — the hosting half of the math.
Low-ABV design is a feature: sherry, vermouth, and amaro builds halve the load while keeping the ritual. Half the spirit, fortified wine fills — the calculator prices the swap.