How Much Is 18 Teaspoons of Vanilla Extract in Ounces?

Converting 18 teaspoons of vanilla extract to ounces gives 3.23 oz. One teaspoon of vanilla extract weighs 5.08g, so 18 teaspoons is 18 × 5.08 = 91.5g (3.23 oz). This conversion is specific to vanilla extract because each ingredient has a different density.

18 teaspoons of vanilla extract
=
3.23oz
Result using all teaspoon standards info
3.23 oz (US) 3.27 oz (Metric Teaspoon) 3.88 oz (Imperial Teaspoon)
18 teaspoons of vanilla extract is also
3.23

Formula and Step-by-Step

teaspoons × 5.08g/tsp ÷ 28.3495g/oz = ounces
  1. Start with 18 teaspoons of vanilla extract
  2. 1 teaspoon of vanilla extract = 5.08g
  3. 18 × 5.08 = 91.5g
  4. Convert grams to ounces: 91.5 ÷ 28.3495 = 3.23 oz

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

For liquids, place your measuring spoon on a flat surface and read at eye level. The bottom of the meniscus (the curve at the surface) should align with the measurement line.

Vanilla Extract at Different Amounts

How vanilla extract scales across common teaspoons measurements. Your amount (18 teaspoons) is highlighted.

1.5 tsp0.27 oz2 tsp0.36 oz3 tsp0.54 oz4 tsp0.72 oz5 tsp0.90 oz6 tsp1.08 oz8 tsp1.43 oz18 tsp3.23 oz

For reference, 18 teaspoons of vanilla extract (91.5g) is close in weight to a deck of playing cards (94g).

Other Amounts of Vanilla Extract

Teaspoons US Ounces Metric Teaspoon Imperial Teaspoon
0.25 teaspoons 0.04 oz 0.05 oz 0.05 oz
0.5 teaspoons 0.09 oz 0.09 oz 0.11 oz
1 teaspoon 0.18 oz 0.18 oz 0.22 oz
1.5 teaspoons 0.27 oz 0.27 oz 0.32 oz
2 teaspoons 0.36 oz 0.36 oz 0.43 oz
3 teaspoons 0.54 oz 0.55 oz 0.65 oz
4 teaspoons 0.72 oz 0.73 oz 0.86 oz
5 teaspoons 0.90 oz 0.91 oz 1.08 oz
6 teaspoons 1.08 oz 1.09 oz 1.29 oz
8 teaspoons 1.43 oz 1.46 oz 1.72 oz
18 teaspoons 3.23 oz 3.27 oz 3.88 oz

Understanding the Units

What is a Teaspoon?

A US teaspoon is 4.929 ml, a metric teaspoon is exactly 5 ml, and an imperial teaspoon is 5.919 ml. The metric and US versions are nearly identical (1.4% difference), but the imperial teaspoon is 20% larger. For most spices the difference is negligible, but for leaveners like baking powder it can affect the result.

What is an Ounce?

Ounces are commonly used in US recipes for cheese, meat, chocolate, and other ingredients sold by weight. Many kitchen scales offer both gram and ounce readings.

Frequently Asked Questions

About 3.23 oz, based on vanilla extract having a density of 244g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of teaspoons by 5.08 (grams per teaspoon for vanilla extract), then divide by 28.3495 to convert grams to ounces. For 18 teaspoons: 18 × 5.08 = 91.5g, then 91.5 ÷ 28.3495 = 3.23 oz.
For the most accurate results, weigh vanilla extract on a kitchen scale. If measuring by volume, use a liquid measuring spoon on a flat surface and read the level at eye height.
Temperature has a minimal effect on most cooking liquids. The density of vanilla extract changes slightly with temperature, but the difference is usually less than 1-2% between refrigerator and room temperature. This conversion assumes room temperature.