Convert fluid ounces to milliliters and back. Shows cups, liters, tablespoons, pints, gallons. Common volume reference table and batch mode.
Fluid ounces and milliliters are common small-volume units in cooking, beverage labeling, and pharmacy. The US fluid ounce equals 29.5735295625 mL, while the imperial fluid ounce equals 28.4131 mL, so the result depends on which ounce standard you are using.
This converter handles both directions and shows cups, liters, tablespoons, teaspoons, pints, and gallons alongside the main value. That is useful when a recipe, label, or batch sheet starts in fluid ounces but needs to be checked in milliliters.
Use it when you need a clean ounce-to-milliliter answer with the related kitchen units still visible. It is also helpful for comparing drink sizes, bottle labels, and dosing instructions where the original number is written in ounces but the measuring tool or packaging standard in front of you is metric. The side-by-side display is especially useful when US and imperial ounce standards might otherwise be confused. It also saves time when the same label or recipe has to be checked in both kitchen and packaging units.
The ounce-to-milliliter conversion is simple only if you already know which ounce standard applies. This page makes that choice explicit and gives the downstream cup, tablespoon, and liter values people usually need next when they are converting recipes, beverage sizes, or liquid labels. That reduces the chance of using the right number with the wrong measuring system.
mL = fl oz × 29.5735295625 (US) mL = fl oz × 28.4130625 (Imperial) fl oz = mL ÷ 29.5735295625 (US)
Result: 354.88 mL
12 fl oz × 29.5735 = 354.88 mL — the volume of a standard US soda can.
The US fluid ounce (29.5735 mL) and Imperial fluid ounce (28.4131 mL) differ by about 4%. This matters for precision in baking, cocktail mixing, and pharmaceutical dosing. Always confirm which system a recipe uses before converting. US grocery products labeled in fl oz use the US measure; UK products use the Imperial measure.
| Measure | US fl oz | mL | |---|---|---| | 1 teaspoon | 0.167 | 4.93 | | 1 tablespoon | 0.5 | 14.79 | | ¼ cup | 2 | 59.15 | | ⅓ cup | 2.67 | 78.86 | | ½ cup | 4 | 118.29 | | 1 cup | 8 | 236.59 | | 1 pint | 16 | 473.18 | | 1 quart | 32 | 946.35 | | 1 gallon | 128 | 3,785.41 |
Liquid medications are dosed in mL worldwide, but many US patients still measure with kitchen spoons (1 tsp ≈ 5 mL). Oral syringes marked in mL are more accurate. This converter can verify prescribed volumes against household measures.
29.5735 mL in 1 US fluid ounce. The Imperial (UK) fluid ounce is slightly smaller at 28.4131 mL.
33.814 US fl oz per liter, or 35.195 Imperial fl oz per liter.
In US measurement, yes — 1 US cup = 8 US fl oz = 236.59 mL. A metric cup is 250 mL. An Imperial cup is 284.13 mL.
Fluid ounces measure volume, weight ounces (avoirdupois) measure mass. They are not interchangeable unless you know the density of the liquid.
UK recipes typically use imperial measurements. 1 imperial fl oz = 28.413 mL. If the source is British and does not say otherwise, imperial is usually the safer assumption.
2 tablespoons = 1 fl oz (US). So 1 tablespoon = about 14.79 mL.