Convert US Quart to US Cup
Convert us quarts to us cups instantly. 1 us quart = 4 us cup — use the live calculator, the exact formula, a conversion table and worked examples. Also check the US Cup 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.
US Cup
A US customary cup is one sixteenth of a US gallon (236.588 mL).
Standardized for American cooking; distinct from the 240 mL US legal cup and the 250 mL metric cup.
The standard US cooking-volume unit in recipes.
US customary cooking measure.
US Quart to US Cup conversion formula
The relationship between us quarts and us cups:
To convert us quarts to us cups, multiply the value in us quarts by 4. To reverse, multiply us cups by 0.25.
How to use this converter
Type a value into the calculator. The result in us cups 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 Cup to US Quart converter for the reverse direction.
Step-by-step: convert us quarts to us cups
- Write down the value in us quarts (qt).
- Multiply that value by the factor 4.
- The product is the equivalent value in us cups (cup).
- To reverse, multiply the us cup value by 0.25.
Worked examples
Example 1 — Convert 1 qt to cup:
1 × 4 = 4 cup
Example 2 — Convert 100 qt to cup:
100 × 4 = 400 cup
Real-world example — Plastic-film thickness alternates
A 150-us quart plastic film converts cleanly to us cups — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 qt × 4 = 600 cup
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 us cups for direct comparison across supplier datasheets.
70 qt × 4 = 280 cup
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 × 4 = 12 cup
US Quart to US Cup conversion table
Standard reference values for converting us quarts to us cups:
| US Quart [qt] | US Cup [cup] |
|---|---|
| 0.01 | 0.04 |
| 0.1 | 0.4 |
| 1 | 4 |
| 2 | 8 |
| 3 | 12 |
| 4 | 16 |
| 5 | 20 |
| 10 | 40 |
| 20 | 80 |
| 30 | 120 |
| 40 | 160 |
| 50 | 200 |
| 100 | 400 |
| 500 | 2000 |
| 1000 | 4000 |
Frequently asked questions
How many us cups is 1 us quart?
How do I convert us quarts to us cups?
How do I convert us cups back to us quarts?
How many us cups 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 = 4 cup) 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.