A US liquid quart is one quarter of a US gallon.
Quarts to Microliters Converter — qt to uL
Convert Quart (qt) to Microliter (uL) using the exact conversion factor (1 quart = 946,352.946 microliter). See the formula, worked examples, conversion table, history, and common uses.
Quarts to Microliters 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.
Microliter is 0.000001 liter units.
Result = input x 0.000946352946 / 1e-9.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quarts to Microliters
Quart and Microliter 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
microliters = quarts × 946352.946
This factor comes from each unit's defined relationship to the category's base unit: 1 quart equals 0.000946352946 base units, and 1 microliter equals 1e-9 base units, so dividing one by the other gives the direct quart-to-microliter factor of 946352.946.
Simple example
1 qt × 946352.946 = 946,352.946 uL
1 quart = 946,352.946 microliters.
Real-world example
10 qt × 946352.946 = 9,463,529.46 uL
10 quarts = 9,463,529.46 microliters.
Conversion table
| Quart (qt) | Microliter (uL) |
|---|---|
| 1 qt | 946,352.946 uL |
| 5 qt | 4,731,764.73 uL |
| 10 qt | 9,463,529.46 uL |
| 25 qt | 23,658,823.65 uL |
| 50 qt | 47,317,647.3 uL |
| 100 qt | 94,635,294.6 uL |
Reverse conversion: Microliter to Quart
1 uL × 0.000001056688209 = 0.0000010567 qt
1 microliter = 0.0000010567 quarts.
quarts = microliters × 0.00000105668820943
For a page dedicated to this direction, see Microliter 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 Microliter (uL)
Microliter is 0.000001 liter units.
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 microliters are in 1 quart?
1 quart equals 946,352.946 microliters, using the exact defined conversion factor rather than an estimate.
How do I convert quart to microliter?
Multiply the quart value by 946352.946. The converter above does this instantly to whatever precision you set.
How do I convert microliter back to quart?
Use the reverse factor: 1 microliter equals 0.0000010567 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 microliter?
Microliter (uL) is a unit of volume.
Is the quart to microliter 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)