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About butter measurements
A solid stick of butter has a density near 0.96 g/ml, so a US cup, or two sticks, is about 226 g. Whipped butter is a different animal: it is beaten with air and can occupy 30–40% more volume, meaning a whipped cup falls well short of a solid one by weight.

Ounces of butter equivalent in ml?
FAQs on butter weight to volume conversion
1 ounce of butter equals how many ml?
1 ounce of butter is equivalent 30 ml.
How much is 30 ml of butter in ounces?
30 ml of butter equals 1 ounce.
Ounces to Ml of Butter Conversion Chart
Note: Fractions are rounded to common recipe fractions (1/8, 1/4, 1/3, 1/2, 2/3, 3/4…). Values are rounded to 3 significant figures.
| Ounces to ml of Butter | |
|---|---|
| 1.86 ml | |
| 3.71 ml | |
| 7.42 ml | |
| 9.9 ml | |
| 14.8 ml | |
| 19.8 ml | |
| 22.3 ml | |
| 1 ounce | 29.7 ml |
| 1 | 31.5 ml |
| 1 | 33.4 ml |
| 1 | 37.1 ml |
| 1 | 39.6 ml |
| 1 | 44.5 ml |
| 1 | 49.5 ml |
| 1 | 51.9 ml |
| 2 ounces | 59.4 ml |
| 2 | 61.2 ml |
| 2 | 63.1 ml |
| 2 | 66.8 ml |
| 2 | 69.3 ml |
| 2 | 74.2 ml |
| 3 ounces | 89.1 ml |
| 4 ounces | 119 ml |
| 5 ounces | 148 ml |
| 6 ounces | 178 ml |
| 8 ounces | 237 ml |
| 10 ounces | 297 ml |
References:
Weight to Volume Conversions - Recipes
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.