oz to ml: Convert Fluid Ounces to Milliliters

Why Fluid Ounces to ml Comes Up

The fluid ounce measures volume in US recipes, drink bottles, and cosmetic labels, while milliliters are the metric standard worldwide. Converting oz to ml is a daily task in cooking and shopping.

One US fluid ounce equals 29.5735295625 ml. Our fl oz to ml converter gives the precise value; 29.57 ml is the usual rounded figure.

The oz to ml Formula

The US fluid ounce is defined as exactly 29.5735295625 ml (one eighth of a US cup, since a cup is 236.588 ml). Multiply fluid ounces by 29.5735295625 to get milliliters.

What the Numbers Look Like

Bottle and can sizes make the scale familiar. A 1 fl oz shot is 29.57 ml; a 2 fl oz (60 ml) travel bottle; a 16.9 fl oz water bottle is about 500 ml; a 32 fl oz (1 quart) bottle is about 946 ml.

On a recipe, 4 fl oz is about 118 ml and 8 fl oz (1 cup) is 237 ml. Our guide to 8 oz to ml covers the cup-sized case in detail.

oz to ml Compared With Nearby Volumes

Reference points: 0.5 fl oz = 14.79 ml, 2 fl oz = 59.15 ml, 10 fl oz = 295.74 ml. Each fluid ounce adds 29.57 ml, so amounts scale smoothly.

For the reverse, converting ml back to fl oz divides by 29.57, useful when a metric bottle size needs a US label.

When You Need oz in ml

The conversion is key for recipes and product labels. A US recipe calling for 6 fl oz of liquid becomes about 177 ml on a metric measuring cup. Cosmetic and medicine doses listed in fl oz map to the ml markings on syringes and cups.

It also helps when comparing bottle sizes while shopping abroad, since most of the world prints milliliters.