How Much Is 129 Teaspoons of Active Dry Yeast in Ounces?
129 teaspoons of active dry yeast weighs 13.65 oz. This is based on active dry yeast having a density of 144g 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 129 teaspoons.
Formula and Step-by-Step
- Start with 129 teaspoons of active dry yeast
- 1 teaspoon of active dry yeast = 3g
- 129 × 3 = 387g
- Convert grams to ounces: 387 ÷ 28.3495 = 13.65 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Active dry yeast can clump or settle during storage. Stir or sift before measuring by volume for consistent results.
Active Dry Yeast at Different Amounts
How active dry yeast scales across common teaspoons measurements. Your amount (129 teaspoons) is highlighted.
For reference, 129 teaspoons of active dry yeast (387g) is close in weight to an American football (410g).
Other Amounts of Active Dry Yeast
| Teaspoons | US Ounces | Metric Teaspoon | Imperial Teaspoon |
|---|---|---|---|
| 0.25 teaspoons | 0.03 oz | 0.03 oz | 0.03 oz |
| 0.5 teaspoons | 0.05 oz | 0.05 oz | 0.06 oz |
| 1 teaspoon | 0.11 oz | 0.11 oz | 0.13 oz |
| 1.5 teaspoons | 0.16 oz | 0.16 oz | 0.19 oz |
| 2 teaspoons | 0.21 oz | 0.21 oz | 0.25 oz |
| 3 teaspoons | 0.32 oz | 0.32 oz | 0.38 oz |
| 4 teaspoons | 0.42 oz | 0.43 oz | 0.51 oz |
| 5 teaspoons | 0.53 oz | 0.54 oz | 0.64 oz |
| 6 teaspoons | 0.63 oz | 0.64 oz | 0.76 oz |
| 8 teaspoons | 0.85 oz | 0.86 oz | 1.02 oz |
| 129 teaspoons | 13.65 oz | 13.85 oz | 16.39 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.