How Much Is 18 Teaspoons of Tomato Sauce in Ounces?
18 teaspoons of tomato sauce weighs 3.24 oz. This is based on tomato sauce having a density of 245g per cup. Because teaspoons measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 18 teaspoons.
Formula and Step-by-Step
- Start with 18 teaspoons of tomato sauce
- 1 teaspoon of tomato sauce = 5.10g
- 18 × 5.10 = 91.88g
- Convert grams to ounces: 91.88 ÷ 28.3495 = 3.24 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.
Tomato Sauce at Different Amounts
How tomato sauce scales across common teaspoons measurements. Your amount (18 teaspoons) is highlighted.
For reference, 18 teaspoons of tomato sauce (91.88g) is close in weight to a deck of playing cards (94g).
Other Amounts of Tomato Sauce
| Teaspoons | US Ounces | Metric Teaspoon | Imperial Teaspoon |
|---|---|---|---|
| 0.25 teaspoons | 0.05 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 | 0.37 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 | 1.10 oz | 1.30 oz |
| 8 teaspoons | 1.44 oz | 1.46 oz | 1.73 oz |
| 18 teaspoons | 3.24 oz | 3.29 oz | 3.89 oz |
Understanding the Units
What is a Teaspoon?
One teaspoon holds about 5 milliliters. There are 3 teaspoons in a tablespoon and 48 teaspoons in a cup. Teaspoon accuracy matters most with leaveners like baking powder and baking soda, where small differences affect rise and texture.
What is an Ounce?
An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.