Olive oil
One US cup of olive oil weighs 216 grams (7.6 ounces). Going the other way, 100 grams is about 0.46 cups.
Also called extra virgin olive oil, EVOO, virgin olive oil.
Most sites print a number for a cup of olive oil and do not say where it came from. This page publishes 216 g (7.6 oz), names USDA FoodData Central and FAO/WHO Codex Alimentarius, and records the source that was checked against an independent standard and rejected.
| Volume | Grams | Ounces |
|---|---|---|
| 1 cup | 216 g | 7.6 oz |
| 3/4 cup | 162 g | 5.7 oz |
| 2/3 cup | 144 g | 5.1 oz |
| 1/2 cup | 108 g | 3.8 oz |
| 1/3 cup | 72 g | 2.5 oz |
| 1/4 cup | 54 g | 1.9 oz |
| 1 tablespoon | 13.5 g | 0.48 oz |
| 1 teaspoon | 4.5 g | 0.16 oz |
Olive oil ounces to grams and cups
| Weight | Grams | US cups |
|---|---|---|
| 1 oz | 28.3 g | 0.13 |
| 4 oz | 113.4 g | 0.52 |
| 8 oz | 226.8 g | 1.05 |
| 16 oz (1 lb) | 453.6 g | 2.10 |
Where this number comes from
The first entry where an independent third source rejected one of the other two rather than breaking a tie. USDA publishes three measures for FDC 171413: a cup at 216 g, a tablespoon at 13.5 g and a teaspoon at 4.5 g. On the US customary cup of 236.5882365 ml and its exact sixteenth and forty-eighth, all three give 0.91298 g/ml to five decimal places.
They are one density rounded three ways, not three measurements, and USDA does not disagree with itself here. An earlier version of this entry reported the cup as 0.9000 g/ml and reasoned at length about rounding becoming visible against an independent standard. That figure did not exist in USDA's data.
It was produced by dividing the cup by 240 ml, the FDA labelling cup, while dividing the spoons by customary volumes, so the cup alone was measured against the wrong denominator. The site now derives every volume from a single cup constant, which is what makes the error unrepeatable rather than merely corrected. Codex Alimentarius CXS 33-1981 specifies olive oil relative density as 0.910 to 0.916 at 20C, determined per IUPAC 2.101, and 0.9130 falls inside it.
The standard confirms USDA rather than adjudicating between USDA's own portions. King Arthur Baking's chart gives 1/4 cup as 50 g, implying 0.8455 g/ml on the customary cup. That is 7.1% below the Codex range.
A liquid has no sifted-or-scooped variation, so unlike flour there is no measuring method that reconciles the two figures; the chart value is simply wrong for olive oil. It is recorded as a rejected source rather than deleted, because a published figure that is wrong is worth knowing about. Density falls as temperature rises, so oil measured warm weighs slightly less per cup than the same oil measured cold.
Sources
Liquid, at room temperature
- USDA FoodData Central216 g per cup7.6 ozFDC 171413, SR Legacy, 1 undetermined tablespoon = 13.5 g
- FAO/WHO Codex Alimentarius0.91–0.916 g/mlCXS 33-1981, Appendix section 3, relative density 20C/water 20C
- King Arthur Baking200 g per cup7.1 ozIngredient Weight Chart, olive oil, 1/4 cup = 50 gRejected. 0.8455 g/ml falls 7.1% below the Codex Alimentarius range of 0.910-0.916 at 20C. Olive oil is a liquid with no packing state, so no measuring method can account for the gap. The figure cannot be correct for olive oil at any normal temperature.
Corrections on this ingredient
The following published figures for olive oil are rejected here, with the physics or standards reasoning behind each rejection on its own page:
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