Butter to Oil Converter
Convert butter to oil (or oil to butter) for baking — the ¾-cup-oil-per-cup-of-butter substitution ratio, shown in cups, tablespoons, teaspoons, fluid ounces and milliliters.
Input
Melted coconut oil is solid fat like butter, so it swaps 1:1; liquid oils use ¾.
Output
| Unit | Amount |
|---|---|
| No data yet | |
More ways to use this tool
REST API
curl -X POST https://api.iotools.cloud/v1/tool/butter-to-oil-converter \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"direction": "butter-to-oil",
"amount": "1",
"unit": "cup",
"oil": "neutral"
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `butter-to-oil-converter` tool (Butter to Oil Converter) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.
Embed widget
<iframe
src="https://iotools.cloud/embed/butter-to-oil-converter/"
width="100%" height="520" frameborder="0" scrolling="no" loading="lazy"
title="Butter to Oil Converter — iotools.cloud"
sandbox="allow-scripts allow-forms allow-same-origin allow-downloads allow-popups allow-popups-to-escape-sandbox"
allow="clipboard-write"
style="width:100%;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden"></iframe>
<script src="https://iotools.cloud/embed.js" async></script>Drop this into your own page — free, no key required, just a link back.
| Cost per API/MCP call | From 5 credits |
|---|---|
| Need more credits? | View pricing |
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Guides
What does this converter do?
Out of butter mid-recipe — or swapping it out on purpose? Enter an amount of butter and get the matching amount of oil (or the reverse) in cups, tablespoons, teaspoons, fluid ounces and milliliters.
The ratio
Butter is only about 80% fat; the rest is water and milk solids. Oil is 100% fat, so you need less of it:
oil = butter × ¾ (liquid oils: vegetable, canola, olive)
butter = oil ÷ ¾ = oil × 1⅓So 1 cup of butter becomes ¾ cup of oil, and 1 stick (½ cup) becomes 6 tablespoons. Melted coconut oil is a solid fat like butter and swaps 1:1.
How to use it
- Choose the direction — Butter → Oil or Oil → Butter.
- Enter the amount and pick its unit (sticks of butter are supported).
- Pick the type of oil. Read the substitute amount in every unit at once.
Tips for baking
- Oil works best in cakes, muffins, brownies and quick breads, where it gives a moist, tender crumb.
- Skip it where butter's structure matters — shortbread, pie crust, laminated dough, and cookies that should hold their shape or turn crisp.
- Butter adds flavor and browns; if the recipe relies on that, expect a milder result.
Frequently asked questions
How much oil replaces 1 cup of butter?
¾ cup (12 tablespoons) of vegetable, canola or olive oil.
How much oil replaces 1 stick of butter?
6 tablespoons (⅜ cup).
Can I use oil for butter in cookies?
You can, but cookies will be flatter and softer. Chill the dough or keep part of the butter for better shape.