Convert Ounces (fl oz) to Quarts (qt)
1 ounce equals 0.03125 quarts.
Ounce to Quart Converter
What Is a Fluid Ounce?
The US fluid ounce (fl oz) is a US customary unit of volume equal to 1/128 of a gallon, 1/32 of a quart, or approximately 29.574 mL. It is the granular unit used on beverage labels, serving sizes, and smaller recipe measurements.
What Is a Quart?
The US liquid quart (qt) equals exactly 32 fluid ounces, 4 cups, or 2 pints (946.353 mL). It is one-fourth of a gallon — the unit for storing broths, milks, stocks, and mid-batch liquids.
Ounces to Quarts Formula
The conversion is exact by definition:
quarts = fluid ounces ÷ 32 exact
This is exact because 1 US quart is defined as 32 US fluid ounces. The reciprocal is 0.03125, so you can also multiply: quarts = fl oz × 0.03125.
Worked Example
Convert 48 fl oz of chicken stock to quarts:
- Divide: 48 ÷ 32 = 1.5 quarts
48 fl oz = 1½ quarts = 6 cups = 3 pints. This is a typical amount for a medium-batch soup recipe.
Common Ounces to Quarts Conversions
| Fluid Ounces | Quarts | Also Equals |
|---|---|---|
| 8 fl oz | ¼ qt | 1 cup |
| 16 fl oz | ½ qt | 1 pint / 2 cups |
| 24 fl oz | ¾ qt | 3 cups |
| 32 fl oz | 1 qt | 2 pints / 4 cups |
| 48 fl oz | 1½ qt | 3 pints / 6 cups |
| 64 fl oz | 2 qt | ½ gallon / 8 cups |
| 96 fl oz | 3 qt | ¾ gallon / 12 cups |
| 128 fl oz | 4 qt | 1 gallon / 16 cups |
Quick Estimation
Divide fluid ounces by 32 — or equivalently, divide by 8 to get cups then divide by 4 to get quarts. Quick anchors: 8 fl oz = ¼ qt (1 cup), 16 fl oz = ½ qt (pint), 32 fl oz = 1 qt, 64 fl oz = 2 qt (½ gallon).
When You Need This Conversion
- Reading labels: A 32 fl oz carton is exactly 1 quart. A 64 fl oz container is 2 quarts (½ gallon). This makes aisle math instant.
- Scaling down recipes: A recipe calls for 1 quart of broth, but your recipe card says “use 16 oz.” 16 fl oz = ½ quart — you only need half the boxed container.
- Storage containers: Quart-size deli containers and Mason jars hold 32 fl oz. When freezing leftover soup measured in fluid ounces, dividing by 32 tells you how many quart containers to label.
- Bulk beverage prep: A pitcher of iced tea might hold 64 fl oz (2 quarts). Filling 8 oz glasses gives you 8 servings per pitcher.
Frequently Asked Questions
How many quarts is 32 ounces?
Exactly 1 quart. This is the definition: 1 US quart ≡ 32 US fluid ounces. 32 fl oz also equals 4 cups or 2 pints.
How many quarts is 16 ounces?
Half a quart (16 ÷ 32 = 0.5). This is also equal to 1 pint or 2 cups — the standard pint-size container at the grocery store.
How many quarts is 64 ounces?
2 quarts (64 ÷ 32 = 2). 64 fl oz is also equal to ½ gallon, 4 pints, or 8 cups — a typical half-gallon container.
How many quarts is 48 ounces?
1½ quarts (48 ÷ 32 = 1.5). You can think of it as “one full quart plus 2 extra cups” or “3 pints.”
Is 1 oz the same as 1 fl oz?
No — they measure different things. 1 oz (without “fluid”) is a unit of weight (about 28.35 grams). 1 fl oz is a unit of volume (about 29.57 mL). For water they happen to be close in numerical value (1 fl oz of water weighs about 1.04 oz), but for other ingredients — flour, sugar, oil — they are very different. This converter handles volume only.
Common Ounce to Quart Conversions
| Ounce | Quart | Actions |
|---|---|---|
| 50 ounces | 1 916 quarts | |
| 100 ounces | 3 18 quarts | |
| 500 ounces | 15.625 quarts | |
| 1000 ounces | 31.25 quarts |
Ounces to quarts Conversion Table
Reference table with common ounces to quarts conversions. All values calculated with high precision.
Ounces to Quarts Table
100 to 10000000
Quarts to Ounces Table
1 to 100000
Looking for the reverse? Convert Quart to Ounce
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- Grams to Ounces — Fluid ounces (volume) vs ounces (weight) — related in cooking
