# How Many Ounces Are There in a Half Liter?

How to convert ounces to litres depends on the type of ounce being used. A half-liter of liquid is equal to 17.5975 fluid ounces or 16.907 U.S. ounces.

One litre is equal to 35.195 fluid ounces or 33.814 fluid ounces by U.S. customary measure. The ounce and the litre are both ways to measure volume, which is how much space something takes up. Liter is a unit of volume in the metric system, while ounce is either part of the imperial system or the U.S. customary system. Several places use the word “ounce” to talk about the U.S. fluid ounce.

The British Weights and Measures Act of 1824 says what units can be used and how they can be used. This took the place of the old way of measuring called “English units,” which had units like the foot, yard, acre, quart, and gallon. The U.S. customary units system, on the other hand, uses units that look similar to the imperial system but are different in a few ways. While both systems have the same measurements for an inch and a foot, many of the volumetric units have different measurements. A gallon in the imperial system is equal to 4.546 litres, while a gallon in the U.S. system is equal to 3.785 litres. The only difference is the number of ounces.