Understanding US Dry Quarts to US Oil Barrels Conversion
The US dry quart (qt-dry) is a US customary dry-volume unit equal to about 1.101221 litres (one-fourth of a US dry gallon), used to measure grains, berries and other dry commodities. The US oil barrel (bbl) equals 42 US gallons, about 158.987 litres, and is the standard unit of the petroleum industry. This conversion places a dry-quart quantity on the industrial barrel scale, relevant when comparing bulk commodity volumes.
Conversion Formula
To convert US Dry Quarts to US Oil Barrels, multiply by this factor:
Step-by-Step Example
Convert 25 US Dry Quarts to US Oil Barrels.
How to Convert US Dry Quarts to US Oil Barrels
Use the fixed conversion factor between the two units to convert any quantity in a single step.
- Start with your value in US Dry Quarts: note the quantity in qt-dry that you want to convert.
- Apply the factor: multiply that quantity by 0.00692647, since 1 qt-dry = 0.00692647 bbl.
- Read the result in US Oil Barrels: the product is your value in bbl.
- Worked result: 25 qt-dry × 0.00692647 = 0.173162 bbl.
US Dry Quarts to US Oil Barrels conversion table
| US Dry Quarts (qt-dry) | US Oil Barrels (bbl) |
|---|---|
| 0 | 0 |
| 1 | 0.006926471 |
| 2 | 0.01385294 |
| 3 | 0.02077941 |
| 4 | 0.02770589 |
| 5 | 0.03463236 |
| 6 | 0.04155883 |
| 7 | 0.0484853 |
| 8 | 0.05541177 |
| 9 | 0.06233824 |
| 10 | 0.06926471 |
| 15 | 0.1038971 |
| 20 | 0.1385294 |
| 25 | 0.1731618 |
| 30 | 0.2077941 |
| 40 | 0.2770589 |
| 50 | 0.3463236 |
| 60 | 0.4155883 |
| 70 | 0.484853 |
| 80 | 0.5541177 |
| 90 | 0.6233824 |
| 100 | 0.6926471 |
| 150 | 1.038971 |
| 200 | 1.385294 |
| 250 | 1.731618 |
| 300 | 2.077941 |
| 400 | 2.770589 |
| 500 | 3.463236 |
| 600 | 4.155883 |
| 700 | 4.84853 |
| 800 | 5.541177 |
| 900 | 6.233824 |
| 1000 | 6.926471 |
| 2000 | 13.85294 |
| 3000 | 20.77941 |
| 4000 | 27.70589 |
| 5000 | 34.63236 |
| 10000 | 69.26471 |
| 25000 | 173.1618 |
| 50000 | 346.3236 |
| 100000 | 692.6471 |
| 250000 | 1731.618 |
| 500000 | 3463.236 |
| 1000000 | 6926.471 |
What is the US Dry Quart?
The US dry quart is a unit of volume in the United States customary system used to measure dry commodities such as grains, berries, and produce. It is distinct from the (smaller) US liquid quart and belongs to the "dry measure" family built on the bushel.
Definition
The US dry quart is defined as one thirty-second of a US bushel, or equivalently 2 US dry pints, equal to exactly 67.200625 cubic inches.
Because the bushel is fixed at exactly 2150.42 cubic inches, the dry quart equals 2150.42 ÷ 32 = 67.200625 in³ = 1101.22094 cm³. It is about 16% larger than the US liquid quart (0.946353 L), so dry and liquid quarts must never be interchanged.
Origin and History
Dry measures descend from the English Winchester bushel, standardized in the 15th century and carried to colonial America. When the United Kingdom adopted the imperial system in 1824, the US retained the older Winchester standard, which is why US dry and imperial measures diverge to this day.
Law and Notable Facts
The US dry quart remains a legal customary unit, defined by the National Institute of Standards and Technology (NIST) via the international inch of 25.4 mm. In everyday US commerce, produce like berries is often sold in "dry pint" and "dry quart" containers, though these are nominal sizes rather than precisely enforced volumes.
Real-World Examples and Conversions
- A US dry quart of blueberries holds roughly 1.10 liters, or about 0.85 lb of fruit.
- 4 US dry quarts equal 1 US dry gallon (4.40488 L) and 8 dry quarts make 1 peck.
- Converting the other way, 1 liter equals about 0.9081 US dry quart.
What is the US Oil Barrel?
The US oil barrel (bbl) is a unit of volume equal to 42 US gallons, used almost exclusively for crude oil and petroleum products. It is the standard trading unit of the global oil industry.
Definition
The US oil barrel is defined as exactly 42 US liquid gallons:
Precisely, 1 bbl = 158.987294928 liters. This differs from other "barrel" definitions: the US fluid barrel is 31.5 gallons, the US federal beer barrel is 31 gallons, and the UK barrel is about 163.66 liters.
Origin and History
The 42-gallon standard traces to the early Pennsylvania oil boom of the 1860s. Producers adopted the 42-gallon "tierce" wooden barrel, which was slightly larger than the common 40-gallon whiskey barrel, allowing for spillage and evaporation losses during transport. In 1872 the Petroleum Producers Association formalized 42 gallons as the standard, and it endures today even though oil is now moved by pipeline and tanker rather than in physical barrels.
Law and Notable Facts
The oil barrel is not an SI unit but is deeply embedded in commodity markets, where crude prices are quoted per barrel and production in barrels per day (bbl/d). The abbreviation "bbl" is thought to stand for "blue barrels" once used by Standard Oil. Physical 42-gallon barrels are rarely used in the modern industry.
Real-World Examples and Conversions
- 1 bbl = 42 US gallons ≈ 34.97 imperial gallons ≈ 158.99 liters.
- Global crude oil consumption is roughly 100 million barrels per day.
- A single barrel of crude yields about 19 to 20 US gallons of gasoline after refining.
- 1 metric ton of crude oil is roughly 7.33 barrels, depending on density.
Frequently Asked Questions
How many US Oil Barrels are in one US Dry Quart?
One US Dry Quart equals 0.00692647 US Oil Barrels (bbl). Multiply any quantity of US Dry Quarts by this factor to convert.
What is the formula to convert US Dry Quarts to US Oil Barrels?
Multiply the number of US Dry Quarts by 0.00692647. For example, 10 US Dry Quarts = 0.0692647 bbl.
How do I convert US Oil Barrels back to US Dry Quarts?
Divide by 0.00692647, or equivalently multiply by 144.374. So one US Oil Barrel equals 144.374 US Dry Quarts.
Where is the US Dry Quarts-to-US Oil Barrels conversion used?
This conversion places a dry-quart quantity on the industrial barrel scale, relevant when comparing bulk commodity volumes.
Is the US dry quart the same as a liquid quart?
No. The US dry quart (about 1.101221 L) is larger than the US liquid quart (about 0.946353 L), so the two must never be used interchangeably.