18 Gallon (US) to Quart (UK)
Quick answer
18 Gallon (US) (gal) equals
59.952541 qt (UK)
To convert 18 Gallon (US)s to Quart (UK)s, multiply by 3.3306967385. Therefore, 18 Gallon (US) (gal) equals 59.952541 Quart (UK) (qt (UK)).
Formula: qt (UK) = gal × 3.3306967385. Calculation: 18 × 3.3306967385 = 59.952541 qt (UK).
Convert Gallon (US) (gal) to Quart (UK) (qt (UK)) online with our free unit converter. In volume, 1 gal = 3.330697 qt (UK). Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Gallon (US) to Quart (UK)
- Step 1 — start with the formula. qt (UK) = gal × 3.3306967385
- Step 2 — substitute your figure. 18 gal × 3.3306967385
- Step 3 — read the result. 18 gal = 59.952541 qt (UK)
- Step 4 — check it in reverse. gal = qt (UK) × 0.3002374814 returns 18 gal, which matches the figure you started with.
Volume Converter
40 units available
18 gal = 59.952541 qt (UK)
Formula:
qt (UK) = gal × 3.3306967385With your value: 18 gal = 59.95254129 qt (UK)
How big is that?
Everyday references on a logarithmic scale, all expressed in gallon (us) so you can sanity-check the result.
Other Gallon (US) to Quart (UK) conversions
Gallon (US) to Quart (UK) Conversion Table
| Gallon (US) (gal) | Quart (UK) (qt (UK)) |
|---|---|
| 0.5 | 1.665348 |
| 1 | 3.330697 |
| 2 | 6.661393 |
| 5 | 16.653484 |
| 10 | 33.306967 |
| 15 | 49.960451 |
| 20 | 66.613935 |
| 25 | 83.267418 |
| 50 | 166.534837 |
| 100 | 333.069674 |
| 250 | 832.674185 |
| 500 | 1,665.348369 |
| 1000 | 3,330.696739 |
Quart (UK) to Gallon (US) Conversion Table
| Quart (UK) (qt (UK)) | Gallon (US) (gal) |
|---|---|
| 0.5 | 0.150119 |
| 1 | 0.300237 |
| 2 | 0.600475 |
| 5 | 1.501187 |
| 10 | 3.002375 |
| 15 | 4.503562 |
| 20 | 6.00475 |
| 25 | 7.505937 |
| 50 | 15.011874 |
| 100 | 30.023748 |
| 250 | 75.05937 |
| 500 | 150.118741 |
| 1000 | 300.237481 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Gallon (US) (gal)
Volume
The US liquid gallon is exactly 231 cubic inches = 3.785 411 784 L.
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Quart (UK) (qt (UK))
Volume
Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Gallon (US) to Quart (UK)
To convert from Gallon (US) (gal) to Quart (UK) (qt (UK)), multiply the value by 3.3306967385.
Formula: qt (UK) = gal × 3.3306967385
Reverse: gal = qt (UK) × 0.3002374814
Step-by-Step Example
- Start with your value in Gallon (US). For example: 5 gal
- Multiply by the conversion factor: 5 x 3.3306967385
- The result is: 16.653484 qt (UK)
Gallon (US) and Quart (UK) Relationship
Both Gallon (US) and Quart (UK) belong to the US Customary / Imperial system, making this an intra-system conversion within volume. Since 1 Gallon (US) equals approximately 3.3307 Quart (UK)s, the Gallon (US) represents a larger unit interval than the Quart (UK). Understanding the relationship between Gallon (US) and Quart (UK) is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Gallon (US)
The US gallon equals approximately 3.785 liters and is the standard unit for fuel and large liquid volumes in the United States.
Fun Fact: The US gallon is about 20% smaller than the imperial (UK) gallon.
Common uses of Gallon (US): fuel (US), beverages, swimming pools.
About Quart (UK)
The Quart (UK) (symbol: qt (UK)) is a recognized unit in the US Customary / Imperial measurement framework, utilized within volume applications for precision and standardized data representation.
Common uses of Quart (UK): volume calculations, engineering and science, education.
Frequently Asked Questions
- What is 18 Gallon (US) in Quart (UK)?
- 18 Gallon (US) equals 59.952541 Quart (UK).
- How many Quart (UK)s are in 1 Gallon (US)?
- There are exactly 3.3306967385 Quart (UK)s in 1 Gallon (US). This means the conversion factor from Gallon (US) to Quart (UK) is 3.3306967385.
- What is the formula to convert Gallon (US) to Quart (UK)?
- The formula to convert Gallon (US) to Quart (UK) is: qt (UK) = gal × 3.3306967385. For example, to convert 10 Gallon (US)s to Quart (UK)s, you would multiply 10 by 3.3306967385.
- What is a Gallon (US)?
- The US gallon equals approximately 3.785 liters and is the standard unit for fuel and large liquid volumes in the United States.
- What is a Quart (UK)?
- The Quart (UK) (symbol: qt (UK)) is a recognized unit in the US Customary / Imperial measurement framework, utilized within volume applications for precision and standardized data representation.
- What are the common uses of Gallon (US)?
- The Gallon (US) is commonly used in fuel (US), beverages, swimming pools.
Related Volume Conversions
Cite this page
UnitConvertLab. (2026). 18 Gallon (US) to Quart (UK). UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/18-gallon_us-to-quart_uk