A US customary cup is 236.5882365 milliliters.
Cups to Oil barrels Converter — cup to bbl
Convert Cup (cup) to Oil barrel (bbl) using the exact conversion factor (1 cup = 0.0014880952 oil barrel). See the formula, worked examples, conversion table, history, and common uses.
Cups to Oil barrels converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
An oil barrel is 42 US gallons.
Result = input x 0.0002365882365 / 0.1589872949.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cups to Oil barrels
Cup and Oil barrel appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Cup is most often used for us recipe and cooking measurement.
Formula
oil barrels = cups × 0.0014880952381
This factor comes from each unit's defined relationship to the category's base unit: 1 cup equals 0.0002365882365 base units, and 1 oil barrel equals 0.158987294928 base units, so dividing one by the other gives the direct cup-to-oil barrel factor of 0.0014880952381.
Simple example
1 cup × 0.001488095238 = 0.0014880952 bbl
1 cup = 0.0014880952 oil barrels.
Real-world example
10 cup × 0.001488095238 = 0.0148809524 bbl
10 cups = 0.0148809524 oil barrels.
Conversion table
| Cup (cup) | Oil barrel (bbl) |
|---|---|
| 1 cup | 0.0014880952 bbl |
| 5 cup | 0.0074404762 bbl |
| 10 cup | 0.0148809524 bbl |
| 25 cup | 0.037202381 bbl |
| 50 cup | 0.0744047619 bbl |
| 100 cup | 0.1488095238 bbl |
Reverse conversion: Oil barrel to Cup
0.0014880952 bbl × 672 = 0.9999999744 cup
0.0014880952 oil barrels = 0.9999999744 cups.
cups = oil barrels × 672
For a page dedicated to this direction, see Oil barrel to Cup.
Understanding the Cup
Cup (cup) measures volume. The US customary cup used in cooking is defined as exactly 240 milliliters (a rounded culinary standard, not the older 236.588 mL legal cup). It is classified as a US customary unit (culinary).
Where it's used: United States (recipes and cooking measurement)
Cooking cup vs. legal US cup. US recipes commonly round the cup to 240 mL for convenience, while the precise legal US cup (used to derive fluid ounces, pints, etc.) is 236.588 mL — a small but sometimes noticeable difference in precise baking.
Uses of the Cup today
- US recipe and cooking measurement
- Nutrition labeling serving sizes
- Baking, where volume-based flour/sugar measurement is still common in the US
History of the Cup
The cup as a cooking measure grew out of household and community cookbook conventions in 19th-century America, standardizing what had been ad hoc measurements ('a teacup of flour') into a fixed volume.
The US FDA uses a rounded 240 mL 'metric cup' for nutrition labeling purposes, distinct from the slightly smaller legal/customary cup (236.588 mL, exactly 1/16 of a US gallon) used elsewhere.
Historical origin. Cup was not the invention of a single named person; it developed through the process described above.
Understanding the Oil barrel (bbl)
An oil barrel is 42 US gallons.
Cup — sources
- US FDA — Reference Amounts Customarily Consumed — Uses the 240 mL rounded cup for nutrition labeling.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many oil barrels are in 1 cup?
1 cup equals 0.0014880952 oil barrels, using the exact defined conversion factor rather than an estimate.
How do I convert cup to oil barrel?
Multiply the cup value by 0.001488095238. The converter above does this instantly to whatever precision you set.
How do I convert oil barrel back to cup?
Use the reverse factor: 1 oil barrel equals 672 cups. You can also use the swap control in the converter above to flip the direction instantly.
What is a cup?
Cup (cup) measures volume. The US customary cup used in cooking is defined as exactly 240 milliliters (a rounded culinary standard, not the older 236.588 mL legal cup). It is classified as a US customary unit (culinary).
What is a oil barrel?
Oil barrel (bbl) is a unit of volume.
Is the cup to oil barrel conversion exact?
Yes. The US customary cup used in cooking is defined as exactly 240 milliliters (a rounded culinary standard, not the older 236.588 mL legal cup). That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
What is the difference between cooking cup vs. legal us cup?
US recipes commonly round the cup to 240 mL for convenience, while the precise legal US cup (used to derive fluid ounces, pints, etc.) is 236.588 mL — a small but sometimes noticeable difference in precise baking.
Where is the cup still used today?
United States (recipes and cooking measurement)