How Much Is 8 Tablespoons of Peanut Butter in Ounces?
8 tablespoons of peanut butter equals 4.55 oz. Peanut butter has a density of 258g per cup (16.13g per tablespoon), which means it's relatively light compared to other common cooking ingredients. For comparison, 8 tablespoons of honey would be 6.00 oz.
Formula and Step-by-Step
- Start with 8 tablespoons of peanut butter
- 1 tablespoon of peanut butter = 16.13g
- 8 × 16.13 = 129g
- Convert grams to ounces: 129 ÷ 28.3495 = 4.55 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Peanut butter weighs 258g per cup. Natural and processed versions may have slightly different densities.
Peanut Butter at Different Amounts
How peanut butter scales across common tablespoons measurements. Your amount (8 tablespoons) is highlighted.
For reference, 8 tablespoons of peanut butter (129g) is close in weight to a small apple (130g).
Other Amounts of Peanut Butter
| Tablespoons | US Ounces | Metric Tablespoon | Australian Tablespoon |
|---|---|---|---|
| 1 tablespoon | 0.57 oz | 0.58 oz | 0.77 oz |
| 2 tablespoons | 1.14 oz | 1.15 oz | 1.54 oz |
| 3 tablespoons | 1.71 oz | 1.73 oz | 2.31 oz |
| 4 tablespoons | 2.28 oz | 2.31 oz | 3.08 oz |
| 5 tablespoons | 2.84 oz | 2.88 oz | 3.85 oz |
| 6 tablespoons | 3.41 oz | 3.46 oz | 4.62 oz |
| 8 tablespoons | 4.55 oz | 4.62 oz | 6.15 oz |
| 10 tablespoons | 5.69 oz | 5.77 oz | 7.69 oz |
| 12 tablespoons | 6.83 oz | 6.92 oz | 9.23 oz |
| 16 tablespoons | 9.10 oz | 9.23 oz | 12.31 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?
Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.