An imperial quart is one quarter of an imperial gallon.
Imperial quarts to Attoliters Converter — imp qt to aL
Convert Imperial quart (imp qt) to Attoliter (aL) using the exact conversion factor (1 imperial quart = 1.136522e+18 attoliter). See the formula, worked examples, conversion table, history, and common uses.
Imperial quarts to Attoliters 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.
Attoliter is 1e-18 liter units.
Result = input x 0.0011365225 / 1e-21.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Imperial quarts to Attoliters
Imperial quart and Attoliter 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. Imperial quart is most often used for uk/commonwealth liquid measurement in historical or specialized contexts.
Formula
attoliters = imperial quarts × 1.136522e+18
This factor comes from each unit's defined relationship to the category's base unit: 1 imperial quart equals 0.0011365225 base units, and 1 attoliter equals 1e-21 base units, so dividing one by the other gives the direct imperial quart-to-attoliter factor of 1.136522e+18.
Simple example
1 imp qt × 1.136522e+18 = 1.136522e+18 aL
1 imperial quart = 1.136522e+18 attoliters.
Real-world example
10 imp qt × 1.136522e+18 = 1.136522e+19 aL
10 imperial quarts = 1.136522e+19 attoliters.
Conversion table
| Imperial quart (imp qt) | Attoliter (aL) |
|---|---|
| 1 imp qt | 1.136522e+18 aL |
| 5 imp qt | 5.682612e+18 aL |
| 10 imp qt | 1.136522e+19 aL |
| 25 imp qt | 2.841306e+19 aL |
| 50 imp qt | 5.682612e+19 aL |
| 100 imp qt | 1.136522e+20 aL |
Reverse conversion: Attoliter to Imperial quart
1.136522e+18 aL × 8.79877e-19 = 0.9999995601 imp qt
1.136522e+18 attoliters = 0.9999995601 imperial quarts.
imperial quarts = attoliters × 8.79877e-19
For a page dedicated to this direction, see Attoliter to Imperial quart.
Understanding the Imperial quart
Imperial quart (imp qt) measures volume. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 liters. It is classified as a UK/imperial customary unit.
Where it's used: United Kingdom and Commonwealth countries (historically)
Imperial quart vs. US quart. Like the gallon and pint, the imperial quart is about 20% larger than the US quart, following from Britain's 1824 gallon redefinition.
Uses of the Imperial quart today
- UK/Commonwealth liquid measurement in historical or specialized contexts
History of the Imperial quart
The imperial quart follows directly from the 1824 imperial gallon as one-quarter of it, part of the same UK standardization that diverged from the US gallon system.
Historical origin. Imperial quart was not the invention of a single named person; it developed through the process described above.
Understanding the Attoliter (aL)
Attoliter is 1e-18 liter units.
Imperial quart — sources
- UK Weights and Measures Act 1824 — Basis for the imperial quart via the imperial gallon.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many attoliters are in 1 imperial quart?
1 imperial quart equals 1.136522e+18 attoliters, using the exact defined conversion factor rather than an estimate.
How do I convert imperial quart to attoliter?
Multiply the imperial quart value by 1.136522e+18. The converter above does this instantly to whatever precision you set.
How do I convert attoliter back to imperial quart?
Use the reverse factor: 1 attoliter equals 8.79877e-19 imperial quarts. You can also use the swap control in the converter above to flip the direction instantly.
What is a imperial quart?
Imperial quart (imp qt) measures volume. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 liters. It is classified as a UK/imperial customary unit.
What is a attoliter?
Attoliter (aL) is a unit of volume.
Is the imperial quart to attoliter conversion exact?
Yes. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 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.
What is the difference between imperial quart vs. us quart?
Like the gallon and pint, the imperial quart is about 20% larger than the US quart, following from Britain's 1824 gallon redefinition.
Where is the imperial quart still used today?
United Kingdom and Commonwealth countries (historically)