Convert US Quart to Milliliter
Convert us quarts to milliliters instantly. 1 us quart = 946.352946 milliliter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Milliliter to US Quart converter for the reverse conversion.
Units explained
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.
Milliliter
A milliliter is one thousandth of a liter, exactly equal to one cubic centimeter.
Formed with the SI prefix milli- applied to the liter.
The standard small-volume unit in cooking, medicine and the laboratory.
Metric prefix system.
US Quart to Milliliter conversion formula
The relationship between us quarts and milliliters:
To convert us quarts to milliliters, multiply the value in us quarts by 946.352946. To reverse, multiply milliliters by 0.0010566882.
How to use this converter
Type a value into the calculator. The result in milliliters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Milliliter to US Quart converter for the reverse direction.
Step-by-step: convert us quarts to milliliters
- Write down the value in us quarts (qt).
- Multiply that value by the factor 946.352946.
- The product is the equivalent value in milliliters (mL).
- To reverse, multiply the milliliter value by 0.0010566882.
Worked examples
Example 1 — Convert 1 qt to mL:
1 × 946.352946 = 946.352946 mL
Example 2 — Convert 100 qt to mL:
100 × 946.352946 = 94635.2946 mL
Real-world example — Hair-width scale measurements
A 70-us quart measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like milliliters for direct comparison across supplier datasheets.
70 qt × 946.352946 = 66244.70622 mL
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 us quarts), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 qt × 946.352946 = 2839.058838 mL
Real-world example — Plastic-film thickness alternates
A 150-us quart plastic film converts cleanly to milliliters — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 qt × 946.352946 = 141952.9419 mL
US Quart to Milliliter conversion table
Standard reference values for converting us quarts to milliliters:
| US Quart [qt] | Milliliter [mL] |
|---|---|
| 0.01 | 9.46352946 |
| 0.1 | 94.6352946 |
| 1 | 946.352946 |
| 2 | 1892.705892 |
| 3 | 2839.058838 |
| 4 | 3785.411784 |
| 5 | 4731.76473 |
| 10 | 9463.52946 |
| 20 | 18927.05892 |
| 30 | 28390.58838 |
| 40 | 37854.11784 |
| 50 | 47317.6473 |
| 100 | 94635.2946 |
| 500 | 473176.4730000001 |
| 1000 | 946352.9460000001 |
Frequently asked questions
How many milliliters is 1 us quart?
How do I convert us quarts to milliliters?
How do I convert milliliters back to us quarts?
How many milliliters is 100 us quarts?
Popular volume unit conversions
Convert US Quart to other volume units
Show all US Quart 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 qt = 946.352946 mL) 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.