Convert US Oil Barrel to US Quart
Convert us oil barrels to us quarts instantly. 1 us oil barrel = 168 us quart — use the live calculator, the exact formula, a conversion table and worked examples. Also check the US Quart to US Oil Barrel converter for the reverse conversion.
Units explained
US Oil Barrel
The petroleum barrel is exactly 42 US gallons (158.987 L).
Set by the US petroleum industry in the 1860s and now a global oil-trade standard.
The standard unit for crude-oil pricing and production worldwide.
US oil industry, 1860s.
US Quart
A US liquid quart is one quarter of a US gallon (0.946352946 L).
From the Latin quartus, a quarter of a gallon.
Used for milk, oil and household liquids in the US.
English customary.
US Oil Barrel to US Quart conversion formula
The relationship between us oil barrels and us quarts:
To convert us oil barrels to us quarts, multiply the value in us oil barrels by 168. To reverse, multiply us quarts by 0.005952381.
How to use this converter
Type a value into the calculator. The result in us quarts updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the US Quart to US Oil Barrel converter for the reverse direction.
Step-by-step: convert us oil barrels to us quarts
- Write down the value in us oil barrels (bbl (oil)).
- Multiply that value by the factor 168.
- The product is the equivalent value in us quarts (qt).
- To reverse, multiply the us quart value by 0.005952381.
Worked examples
Example 1 — Convert 1 bbl (oil) to qt:
1 × 168 = 168 qt
Example 2 — Convert 100 bbl (oil) to qt:
100 × 168 = 16800 qt
Real-world example — Macro-to-micro scale comparison
2 us oil barrels of measurement converts to a very large number in us quarts — useful in materials science when comparing bulk-sample dimensions to feature-level surface specs.
2 bbl (oil) × 168 = 336 qt
Real-world example — Macroscopic to microscopic
One us oil barrel equals a million us quarts. Optical engineers calculating coherence length compare macro-scale path lengths with micro-scale wavelength differences using exactly this conversion.
1 bbl (oil) × 168 = 168 qt
Real-world example — Sub-meter precision
A 0.001-us oil barrel (1 mm) tolerance equals 1,000 us quarts — useful for surface-finish specs, where macro-scale dimensions are given in the larger unit but feature roughness in the smaller.
0.001 bbl (oil) × 168 = 0.168 qt
US Oil Barrel to US Quart conversion table
Standard reference values for converting us oil barrels to us quarts:
| US Oil Barrel [bbl (oil)] | US Quart [qt] |
|---|---|
| 0.01 | 1.68 |
| 0.1 | 16.8 |
| 1 | 168 |
| 2 | 336 |
| 3 | 504 |
| 4 | 672 |
| 5 | 840 |
| 10 | 1680 |
| 20 | 3360 |
| 30 | 5040 |
| 40 | 6720 |
| 50 | 8400 |
| 100 | 16800 |
| 500 | 84000 |
| 1000 | 168000 |
Frequently asked questions
How many us quarts is 1 us oil barrel?
How do I convert us oil barrels to us quarts?
How do I convert us quarts back to us oil barrels?
How many us quarts is 100 us oil barrels?
Popular volume unit conversions
Convert US Oil Barrel to other volume units
Show all US Oil Barrel conversions
Metric / SI (8 units)
US Customary (Liquid) (7 units)
Imperial (UK) (4 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (3 units)
Sources & references
Conversion factor (1 bbl (oil) = 168 qt) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.