oz to ml — The Bartender's Conversion Chart
1 US fluid ounce is 29.5735 ml. Round to 30 for speed. Round to 29.57 when precision matters (anything you're going to multiply by 50+).
Key ratios worth memorizing
1 oz = 29.57 ml (call it 30). 0.75 oz = 22.18 ml (call it 22). 0.5 oz = 14.79 ml (call it 15). 0.25 oz = 7.39 ml (call it 7.5).
1 US jigger (1.5 oz) = 44.36 ml. 1 UK jigger (25 ml) = 0.85 oz. 1 EU jigger (50 ml) = 1.69 oz.
Non-oz measurements
1 dash ≈ 1 ml (⅛ tsp). 1 barspoon ≈ 5 ml (1 tsp). 1 teaspoon = 4.93 ml. 1 tablespoon = 14.79 ml (= 0.5 oz).
1 cup = 236.59 ml = 8 oz. 1 pint = 473.18 ml = 16 oz. 1 quart = 946.35 ml = 32 oz. 1 bottle (wine) = 750 ml = 25.36 oz.
Common drink volumes
Martini / Manhattan / Negroni: 2.5–3 oz (74–89 ml). Old Fashioned: 2.5 oz spirit + dilution ≈ 3 oz finished (89 ml). Highball: 4–6 oz finished (118–177 ml). Sour: 3–3.5 oz finished (89–104 ml).
A 750ml bottle holds roughly 17 standard 1.5 oz pours, or 25 standard 30ml pours.
Rather than squinting at a chart behind the bar, let BarCheat convert on the fly. Every recipe supports oz, ml, cups, liters, dashes, and barspoons — switch with one tap.
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