Ounces to Grams Peanut Butter Cooking Size Chart
This chart converts peanut butter between ounces and grams, covering 9 measurements from ounces 1.1 up to ounces 18.1. Because peanut butter has a specific density that differs from other ingredients, these conversions apply only to peanut butter — do not use them for other ingredients.
In baking and cooking, precision matters. A recipe calling for ounces 1.1 of peanut butter needs exactly grams 32 — using a conversion for a different ingredient could throw off the balance of your recipe. Our chart accounts for the actual weight-to-volume ratio of peanut butter.
Quick Converter
| Ounces | Grams |
|---|---|
| 1.1 | 32 |
| 2.3 | 64 |
| 3.0 | 85 |
| 4.5 | 128 |
| 6.0 | 171 |
| 6.8 | 192 |
| 9.0 | 256 |
| 13.5 | 384 |
| 18.1 | 512 |
How to Measure Your Ingredients Size
For dry ingredients, spoon the ingredient into the measuring cup and level off with a straight edge — never scoop directly from the bag, as this packs the ingredient and adds up to 20% extra weight. For liquids, use a liquid measuring cup (with a pour spout) and read at eye level on a flat surface. A digital kitchen scale is the most accurate option and eliminates the need for volume conversions altogether.
Tips for Converting Peanut Butter Cooking Sizes
Weight-based measurements (grams, ounces) are more accurate than volume measurements (cups, tablespoons) for baking. Professional bakers almost always weigh ingredients.
Humidity, packing density, and grain size all affect how much of a dry ingredient fits in a cup. Two people measuring '1 cup of flour' can end up with weights differing by 30 grams.
When a recipe gives both weight and volume, always prefer the weight measurement — it is what the recipe developer used.
Quick Reference
Quick reference: ounces 1.1 of peanut butter = grams 32, ounces 6.0 = grams 171, and ounces 18.1 = grams 512. For the complete 9-row conversion table, see the chart above.
This peanut butter data is also available in Cups, Tablespoons sizing. Use the converter tool above to switch between any pair of systems instantly.
Frequently Asked Questions
- How do I convert peanut butter from ounces to grams?
- Use our peanut butter conversion chart above. For example, ounces 6.0 of peanut butter equals grams 171. The chart covers 9 measurements so you can find the exact conversion you need.
- Does peanut butter weigh the same as other ingredients per cup?
- No. Each ingredient has a different density, so 1 cup of peanut butter weighs a different amount than 1 cup of flour, sugar, or any other ingredient. That is why ingredient-specific conversion charts like this one exist — using a generic converter will give inaccurate results.
- Should I measure peanut butter by weight or volume?
- Weight (grams or ounces) is more accurate for baking because volume measurements like cups can vary by up to 20% depending on how the ingredient is scooped and packed. If your recipe gives both, always prefer the weight measurement. A digital kitchen scale is the most reliable tool.
- What is the smallest peanut butter conversion in this chart?
- The smallest measurement in our chart is ounces 1.1 of peanut butter, which equals grams 32.
- What is the largest peanut butter conversion available?
- The largest measurement covered is ounces 18.1 of peanut butter, which converts to grams 512. If you need a larger quantity, multiply the appropriate row from our chart.
- How do I measure peanut butter accurately for baking?
- For cups, use the spoon-and-level method: spoon peanut butter into the measuring cup, then sweep a straight edge across the top to level it off. Never scoop directly from the container — this packs the ingredient and gives you more than the recipe intended. For grams or ounces, use a digital scale set to zero (tared) with your bowl on it.
- Can I use this chart for peanut butter in savoury recipes too?
- Yes. The weight-to-volume ratio of peanut butter is the same regardless of whether you are baking or cooking a savoury dish. These conversions apply to any recipe that calls for peanut butter.