A US teaspoon is one third of a US tablespoon.
Teaspoons to Imperial quarts Converter — tsp to imp qt
Convert Teaspoon (tsp) to Imperial quart (imp qt) using the exact conversion factor (1 teaspoon = 0.0043368447 imperial quart). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Teaspoons to Imperial 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.
An imperial quart is one quarter of an imperial gallon.
Result = input x 4.92892159e-6 / 0.0011365225.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Teaspoons to Imperial quarts
Teaspoon and Imperial 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. Teaspoon is typically associated with united States (cooking and recipe measurement), while Imperial quart is typically associated with united Kingdom and Commonwealth countries (historically).
Formula
imperial quarts = teaspoons × 0.00433684471161
This factor comes from each unit's defined relationship to the category's base unit: 1 teaspoon equals 0.00000492892159375 base units, and 1 imperial quart equals 0.0011365225 base units, so dividing one by the other gives the direct teaspoon-to-imperial quart factor of 0.00433684471161.
Simple example
1 tsp × 0.004336844712 = 0.0043368447 imp qt
1 teaspoon = 0.0043368447 imperial quarts.
Real-world example
10 tsp × 0.004336844712 = 0.0433684471 imp qt
10 teaspoons = 0.0433684471 imperial quarts.
Conversion table
| Teaspoon (tsp) | Imperial quart (imp qt) |
|---|---|
| 1 tsp | 0.0043368447 imp qt |
| 5 tsp | 0.0216842236 imp qt |
| 10 tsp | 0.0433684471 imp qt |
| 25 tsp | 0.1084211178 imp qt |
| 50 tsp | 0.2168422356 imp qt |
| 100 tsp | 0.4336844712 imp qt |
Reverse conversion: Imperial quart to Teaspoon
0.0043368447 imp qt × 230.5823857 = 0.9999999973 tsp
0.0043368447 imperial quarts = 0.9999999973 teaspoons.
teaspoons = imperial quarts × 230.582385697
For a page dedicated to this direction, see Imperial quart to Teaspoon.
Teaspoon vs. Imperial quart
| Aspect | Teaspoon | Imperial quart |
|---|---|---|
| Family | US customary unit | UK/imperial customary unit |
| Typical use | US recipe and cooking measurement for small quantities | UK/Commonwealth liquid measurement in historical or specialized contexts |
| Where it's used | United States (cooking and recipe measurement) | United Kingdom and Commonwealth countries (historically) |
Understanding the Teaspoon
Teaspoon (tsp) measures volume. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 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 Teaspoon today
- US recipe and cooking measurement for small quantities
- Medication dosing instructions in the US
- Baking measurement alongside the tablespoon and cup
Understanding the Imperial quart
Imperial quart (imp qt) measures volume. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 liters. It is classified as a UK/imperial customary unit.
Where it's used: United Kingdom and Commonwealth countries (historically)
Imperial quart vs. US quart. Like the gallon and pint, the imperial quart is about 20% larger than the US quart, following from Britain's 1824 gallon redefinition.
Uses of the Imperial quart today
- UK/Commonwealth liquid measurement in historical or specialized contexts
History of the Imperial quart
The imperial quart follows directly from the 1824 imperial gallon as one-quarter of it, part of the same UK standardization that diverged from the US gallon system.
Historical origin. Imperial quart was not the invention of a single named person; it developed through the process described above.
Teaspoon — sources
- NIST Handbook 44, Appendix C — General tables of units including the US teaspoon definition.
Imperial quart — sources
- UK Weights and Measures Act 1824 — Basis for the imperial quart via the imperial gallon.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial quarts are in 1 teaspoon?
1 teaspoon equals 0.0043368447 imperial quarts, using the exact defined conversion factor rather than an estimate.
How do I convert teaspoon to imperial quart?
Multiply the teaspoon value by 0.004336844712. The converter above does this instantly to whatever precision you set.
How do I convert imperial quart back to teaspoon?
Use the reverse factor: 1 imperial quart equals 230.5823857 teaspoons. You can also use the swap control in the converter above to flip the direction instantly.
What is a teaspoon?
Teaspoon (tsp) measures volume. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. It is classified as a US customary unit.
What is a imperial quart?
Imperial quart (imp qt) measures volume. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 liters. It is classified as a UK/imperial customary unit.
Is the teaspoon to imperial quart conversion exact?
Yes. The imperial quart is one-quarter of an imperial gallon: exactly 1.1365225 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.
What is the difference between imperial quart vs. us quart?
Like the gallon and pint, the imperial quart is about 20% larger than the US quart, following from Britain's 1824 gallon redefinition.
Where is the teaspoon still used today?
United States (cooking and recipe measurement)