Cooking oils are some of the most consistent ingredients to convert on GramToCup, since liquid oils share a similar density. The 3 oils here sit close together, from Olive oil (216g per cup) to Vegetable oil (220g per cup).
The oils tracked on GramToCup sit in a tight density band — 216g to 220g per cup — so swapping one liquid oil for another by volume is close to a like-for-like swap by weight.
Coconut oil is the exception to watch: it's solid at room temperature and needs to be measured melted or firmly packed solid, unlike the other oils, which pour.
How each oils ingredient converts at common gram amounts, lightest to heaviest.
| Ingredient | g / cup | 50g | 100g | 200g | 250g | 500g |
|---|---|---|---|---|---|---|
| Olive oil | 216g | 0.23 cups | 0.46 cups | 0.93 cups | 1.16 cups | 2.31 cups |
| Coconut oil | 218g | 0.23 cups | 0.46 cups | 0.92 cups | 1.15 cups | 2.29 cups |
| Vegetable oil | 220g | 0.23 cups | 0.45 cups | 0.91 cups | 1.14 cups | 2.27 cups |
Open any ingredient for its full density breakdown, quick conversion table, and measuring tips.
A liquid fat pressed from olives, used in cooking, baking, and dressings.
A plant fat that is solid at room temperature and liquid when warmed, popular in baking.
A neutral-flavored liquid oil commonly used for frying and everyday baking.
Liquid oils pour cleanly into a liquid measuring cup, but coconut oil needs one extra decision first:
Liquid Measuring Cup — Olive oil, Vegetable oil
Use a liquid measuring cup — the kind with a spout and a pour line — rather than a dry measuring cup, and check the level at eye height for olive oil.
Solid or Melted — Coconut oil
Measure coconut oil solid and firmly packed if the recipe calls for it solid, or melt it first if the recipe specifies melted — the two methods give different weights for the same cup line.
Olive, coconut and vegetable oil are all liquid fats with closely matched densities, so their gram-per-cup values sit within a few grams of each other.
Coconut oil is solid below roughly room temperature and liquid above it — a recipe should specify which state to measure in, since solid-packed and melted-poured amounts can differ.
Every conversion above uses the same data as the full calculator. Enter any gram amount for any ingredient in this category and get an instant cup conversion.
Use the Gram to Cup Calculator →100g of olive oil is approximately 0.46 cups, based on a density of 216g per US cup.
100g of vegetable oil is approximately 0.45 cups, based on a density of 220g per US cup.
Yes, roughly — their densities are within a few grams of each other per cup, so a cup-for-cup swap is close enough for most recipes.
Only if your recipe calls for melted coconut oil. If it calls for solid coconut oil, pack it into the measuring cup the same way you would butter.