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How Much Is 18.9 Tablespoons of Active Dry Yeast in Ounces?

18.9 tablespoons of active dry yeast weighs 6.00 oz. This is based on active dry yeast having a density of 144g per cup. Because tablespoons measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 18.9 tablespoons.

18.9 tablespoons of active dry yeast
=
6.00oz
Result using all tablespoon standards info
6.00 oz (US) 6.09 oz (Metric Tablespoon) 8.12 oz (Australian Tablespoon)
18.9 tablespoons of active dry yeast is also
6.00

Formula and Step-by-Step

tablespoons × 9g/tbsp ÷ 28.3495g/oz = ounces
  1. Start with 18.9 tablespoons of active dry yeast
  2. 1 tablespoon of active dry yeast = 9g
  3. 18.9 × 9 = 170.1g
  4. Convert grams to ounces: 170.1 ÷ 28.3495 = 6.00 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 tablespoons measurements. Your amount (18.9 tablespoons) is highlighted.

4 tbsp1.27 oz5 tbsp1.59 oz6 tbsp1.90 oz8 tbsp2.54 oz10 tbsp3.17 oz12 tbsp3.81 oz16 tbsp5.08 oz18.9 tbsp6.00 oz

For reference, 18.9 tablespoons of active dry yeast (170.1g) is close in weight to a smartphone (175g).

Other Amounts of Active Dry Yeast

Tablespoons US Ounces Metric Tablespoon Australian Tablespoon
1 tablespoon 0.32 oz 0.32 oz 0.43 oz
2 tablespoons 0.63 oz 0.64 oz 0.86 oz
3 tablespoons 0.95 oz 0.97 oz 1.29 oz
4 tablespoons 1.27 oz 1.29 oz 1.72 oz
5 tablespoons 1.59 oz 1.61 oz 2.15 oz
6 tablespoons 1.90 oz 1.93 oz 2.58 oz
8 tablespoons 2.54 oz 2.58 oz 3.44 oz
10 tablespoons 3.17 oz 3.22 oz 4.29 oz
12 tablespoons 3.81 oz 3.86 oz 5.15 oz
16 tablespoons 5.08 oz 5.15 oz 6.87 oz
18.9 tablespoons 6.00 oz 6.09 oz 8.12 oz

Understanding the Units

What is a Tablespoon?

A tablespoon (tbsp) is a US customary unit of volume equal to 14.787 milliliters, 3 teaspoons, or 1/16 of a cup. It is commonly used for measuring smaller amounts of ingredients.

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.

Frequently Asked Questions

About 6.00 oz, based on active dry yeast having a density of 144g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of tablespoons by 9 (grams per tablespoon for active dry yeast), then divide by 28.3495 to convert grams to ounces. For 18.9 tablespoons: 18.9 × 9 = 170.1g, then 170.1 ÷ 28.3495 = 6.00 oz.
For the most accurate results, weigh active dry yeast on a kitchen scale. If measuring by volume, spoon the ingredient into the measuring spoon and level it off with a straight edge rather than scooping directly.
Weight-per-cup values vary because of differences in how the ingredient is measured (spooned vs scooped), grind size, moisture content, and settling during storage. Our values use standardized measurement methods from established culinary references.
Reverse the conversion: 6.00 oz × 28.3495 = 170.1g, then 170.1g ÷ 9 = 18.9 tablespoons. Or use the Ounces to Tablespoons converter.