A US liquid quart is one quarter of a US gallon.
Quarts to Oil barrels Converter — qt to bbl
Convert Quart (qt) to Oil barrel (bbl) using the exact conversion factor (1 quart = 0.005952381 oil barrel). See the formula, worked examples, conversion table, history, and common uses.
Quarts 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 0.000946352946 / 0.1589872949.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quarts to Oil barrels
Quart 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. Quart is most often used for us recipe measurement (larger liquid volumes).
Formula
oil barrels = quarts × 0.00595238095238
This factor comes from each unit's defined relationship to the category's base unit: 1 quart equals 0.000946352946 base units, and 1 oil barrel equals 0.158987294928 base units, so dividing one by the other gives the direct quart-to-oil barrel factor of 0.00595238095238.
Simple example
1 qt × 0.005952380952 = 0.005952381 bbl
1 quart = 0.005952381 oil barrels.
Real-world example
10 qt × 0.005952380952 = 0.0595238095 bbl
10 quarts = 0.0595238095 oil barrels.
Conversion table
| Quart (qt) | Oil barrel (bbl) |
|---|---|
| 1 qt | 0.005952381 bbl |
| 5 qt | 0.0297619048 bbl |
| 10 qt | 0.0595238095 bbl |
| 25 qt | 0.1488095238 bbl |
| 50 qt | 0.2976190476 bbl |
| 100 qt | 0.5952380952 bbl |
Reverse conversion: Oil barrel to Quart
0.005952381 bbl × 168 = 1.000000008 qt
0.005952381 oil barrels = 1.000000008 quarts.
quarts = oil barrels × 168
For a page dedicated to this direction, see Oil barrel to Quart.
Understanding the Quart
Quart (qt) measures volume. The US liquid quart is exactly one-quarter of a US gallon: 0.946352946 liters. It is classified as a US customary unit.
Where it's used: United States (cooking, dairy, motor oil packaging)
Uses of the Quart today
- US recipe measurement (larger liquid volumes)
- US motor oil and automotive fluid packaging
- US dairy and beverage packaging (quart containers)
History of the Quart
The quart ('quarter' of a gallon) follows the same English wine-gallon lineage as the US gallon, retained by the US after England moved to a different imperial standard in 1824.
Historical origin. Quart 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.
Quart — sources
- NIST Handbook 44, Appendix C — General tables of units including the US quart definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many oil barrels are in 1 quart?
1 quart equals 0.005952381 oil barrels, using the exact defined conversion factor rather than an estimate.
How do I convert quart to oil barrel?
Multiply the quart value by 0.005952380952. The converter above does this instantly to whatever precision you set.
How do I convert oil barrel back to quart?
Use the reverse factor: 1 oil barrel equals 168 quarts. You can also use the swap control in the converter above to flip the direction instantly.
What is a quart?
Quart (qt) measures volume. The US liquid quart is exactly one-quarter of a US gallon: 0.946352946 liters. It is classified as a US customary unit.
What is a oil barrel?
Oil barrel (bbl) is a unit of volume.
Is the quart to oil barrel conversion exact?
Yes. The US liquid quart is exactly one-quarter of a US gallon: 0.946352946 liters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
Where is the quart still used today?
United States (cooking, dairy, motor oil packaging)