Fluid ounces to Teaspoons

Fluid Ounce

A fluid ounce (fl oz) is a common US customary unit of volume used to measure liquids such as beverages, cooking ingredients, and personal care products. One US fluid ounce equals 1/8 of a cup or about 29.57 milliliters. You’ll often find this unit printed on drink bottles, medicine labels, and kitchen tools where precise small measurements are needed.

Because the fluid ounce is commonly used in the United States while many other countries rely on the metric system, converting fluid ounces to milliliters, cups, or liters is a frequent need. A converter helps provide quick, accurate results that make cooking and product comparisons easier.

Teaspoon

A teaspoon (tsp) is a small US customary unit of volume used mainly for measuring ingredients in cooking and beverages. One US teaspoon equals one-third of a tablespoon or about 4.93 milliliters, making it ideal for small additions like salt, spices, extracts, or medicine doses. It’s one of the most common measurements in recipes and is included in almost every set of measuring spoons.

Because metric measurements are widely used outside the United States, converting teaspoons to milliliters, tablespoons, or cups can be helpful when following international recipes. A conversion tool ensures accuracy so results remain consistent in the kitchen.