Q&A for How to Measure Ounces

Not necessarily. An ounce can be either a measure of weight or a measure of volume (like a cup or a milliliter). A fluid ounce (fl oz) is a volume measurement, usually used for measuring liquids. However, sometimes people will simply say or write “ounce/oz” without the "fluid/fl" when they’re talking about fluid ounces. So, check the context to figure out which is more likely. For instance, 1 oz of milk is likely a fluid ounce, while 1 oz of garlic would probably be a weight measurement.

A single cup is 8 fluid ounces. If your measuring cup is bigger, it will hold more ounces (e.g., a 2-cup measuring cup can hold 16 fluid ounces).

By weight, a cup of all-purpose flour is about 4 ½ oz. Cake or pastry flour is a little lighter, so a cup would be closer to 4 oz.

Five ounces of butter equals about 142 grams.

1 fl oz (US fluid ounce) = 29.57 ml (milliliters).

One ounce is approximately 0.0295735 of a liter. There are about 33.814 ounces in a liter.

67.628 according to conversion rates with liquid ounces instead of solid ounces, since liters are commonly used to measure liquid.

Oz stands for ounces. For example, if a recipe calls for 6 oz of butter, it is asking for 6 ounces.

There are 8 oz in a cup, so 4oz/8oz + 1oz/8oz = 1/2 cup + 1/8 cup (or 2 tablespoons).

67.628 according to conversion rates with liquid ounces instead of solid ounces, since liters are commonly used to measure liquid.