How Much Is 18 Teaspoons of Walnuts in Ounces?
18 teaspoons of walnuts weighs 1.59 oz. This is based on walnuts having a density of 120g 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 walnuts
- 1 teaspoon of walnuts = 2.5g
- 18 × 2.5 = 45g
- Convert grams to ounces: 45 ÷ 28.3495 = 1.59 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Chopped, sliced, and whole walnuts have very different weights per measuring spoon. Always match the form specified in your recipe.
Walnuts at Different Amounts
How walnuts scales across common teaspoons measurements. Your amount (18 teaspoons) is highlighted.
For reference, 18 teaspoons of walnuts (45g) is close in weight to a golf ball (46g).
Other Amounts of Walnuts
| Teaspoons | US Ounces | Metric Teaspoon | Imperial Teaspoon |
|---|---|---|---|
| 0.25 teaspoons | 0.02 oz | 0.02 oz | 0.03 oz |
| 0.5 teaspoons | 0.04 oz | 0.04 oz | 0.05 oz |
| 1 teaspoon | 0.09 oz | 0.09 oz | 0.11 oz |
| 1.5 teaspoons | 0.13 oz | 0.13 oz | 0.16 oz |
| 2 teaspoons | 0.18 oz | 0.18 oz | 0.21 oz |
| 3 teaspoons | 0.26 oz | 0.27 oz | 0.32 oz |
| 4 teaspoons | 0.35 oz | 0.36 oz | 0.42 oz |
| 5 teaspoons | 0.44 oz | 0.45 oz | 0.53 oz |
| 6 teaspoons | 0.53 oz | 0.54 oz | 0.64 oz |
| 8 teaspoons | 0.71 oz | 0.72 oz | 0.85 oz |
| 18 teaspoons | 1.59 oz | 1.61 oz | 1.91 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.