TSP to OZ Converter

How to convert teaspoons to fluid ounces

1 teaspoon = 0.1666666667 fluid ounces. To convert teaspoons to fluid ounces, divide by 6 (or multiply by 0.1666666667). A US teaspoon is one sixth of a fluid ounce, about 4.93 ml. A US fluid ounce is 1/128 of a US gallon, exactly 29.5735295625 ml.

Worked examples

• 3 teaspoons = 0.5 fl oz (3 ÷ 6)
• 6 teaspoons = 1 fl oz (6 ÷ 6)
• 24 teaspoons = 4 fl oz (24 ÷ 6)

Where this conversion comes up

Teaspoons are used for baking, spices and liquid medicine; fluid ounces for drink cans, baby bottles, cosmetics and US recipes. Six teaspoons make one US fluid ounce (2 tbsp), so 24 tsp is 4 fl oz. For dry ingredients by weight the answer differs: a teaspoon of sugar weighs 0.15 oz, of salt 0.2 oz.

Quick estimate

Divide by 6.

Common mistakes

• Multiplying instead of dividing. A fluid ounce is larger than a teaspoon, so the number of fluid ounces must come out smaller: 3 teaspoons = 0.5 fl oz.
• Mixing fluid ounces with weight ounces. A fluid ounce is a volume (29.57 ml); an ounce on a kitchen scale is a weight (28.35 g). A cup of flour is 8 fl oz by volume but only about 4.25 oz by weight.
• Using the imperial (UK) unit. This page uses US measures. An imperial gallon is 4.546 L (20% more than a US gallon), an imperial pint 568 ml and an imperial fluid ounce 28.41 ml.
• Rounding too early. Keep the full factor until the last step; rounding 0.167 to 0.17 first puts large values noticeably off.

Going the other way? Use the oz to tsp converter. Related volume converters: ml to oz, oz to ml, liters to gallons, gallons to liters, liters to quarts, quarts to liters.