A US tablespoon is half a US fluid ounce.
Tablespoons to Quarts Converter — tbsp to qt
Convert Tablespoon (tbsp) to Quart (qt) using the exact conversion factor (1 tablespoon = 0.015625 quart). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Tablespoons to Quarts 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.
A US liquid quart is one quarter of a US gallon.
Result = input x 1.47867648e-5 / 0.000946352946.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Tablespoons to Quarts
Tablespoon and Quart 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. Tablespoon is typically associated with united States (cooking and recipe measurement), while Quart is typically associated with united States (cooking, dairy, motor oil packaging).
Formula
quarts = tablespoons × 0.015625
This factor comes from each unit's defined relationship to the category's base unit: 1 tablespoon equals 0.0000147867647813 base units, and 1 quart equals 0.000946352946 base units, so dividing one by the other gives the direct tablespoon-to-quart factor of 0.015625.
Simple example
1 tbsp × 0.015625 = 0.015625 qt
1 tablespoon = 0.015625 quarts.
Real-world example
10 tbsp × 0.015625 = 0.15625 qt
10 tablespoons = 0.15625 quarts.
Conversion table
| Tablespoon (tbsp) | Quart (qt) |
|---|---|
| 1 tbsp | 0.015625 qt |
| 5 tbsp | 0.078125 qt |
| 10 tbsp | 0.15625 qt |
| 25 tbsp | 0.390625 qt |
| 50 tbsp | 0.78125 qt |
| 100 tbsp | 1.5625 qt |
Reverse conversion: Quart to Tablespoon
0.015625 qt × 64 = 1 tbsp
0.015625 quarts = 1 tablespoon.
tablespoons = quarts × 64
For a page dedicated to this direction, see Quart to Tablespoon.
Tablespoon vs. Quart
| Aspect | Tablespoon | Quart |
|---|---|---|
| Family | US customary unit | US customary unit |
| Typical use | US recipe and cooking measurement | US recipe measurement (larger liquid volumes) |
| Where it's used | United States (cooking and recipe measurement) | United States (cooking, dairy, motor oil packaging) |
Understanding the Tablespoon
Tablespoon (tbsp) measures volume. The US tablespoon is exactly 14.78676478125 milliliters — 3 US teaspoons, or 1/16 of a US cup. It is classified as a US customary unit.
Where it's used: United States (cooking and recipe measurement)
Uses of the Tablespoon today
- US recipe and cooking measurement
- Nutrition labeling serving sizes in the US
- Medication dosing instructions in the US
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.
Tablespoon — sources
- NIST Handbook 44, Appendix C — General tables of units including the US tablespoon definition.
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 quarts are in 1 tablespoon?
1 tablespoon equals 0.015625 quarts, using the exact defined conversion factor rather than an estimate.
How do I convert tablespoon to quart?
Multiply the tablespoon value by 0.015625. The converter above does this instantly to whatever precision you set.
How do I convert quart back to tablespoon?
Use the reverse factor: 1 quart equals 64 tablespoons. You can also use the swap control in the converter above to flip the direction instantly.
What is a tablespoon?
Tablespoon (tbsp) measures volume. The US tablespoon is exactly 14.78676478125 milliliters — 3 US teaspoons, or 1/16 of a US cup. It is classified as a US customary unit.
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.
Is the tablespoon to quart 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 tablespoon still used today?
United States (cooking and recipe measurement)