Cubic Decimeter to Gallon (UK) Converter
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How to Convert Cubic Decimeter to Gallon (UK)
To liters: 1 dm³ = 1 L (exact). To cubic meters: divide by 1,000. To gallons (US): multiply by 0.264172.
1 dm³ = 0.001 m³ = 1 L = 1,000 cm³ = 10⁶ mm³. One cubic meter contains 1,000 dm³.
For example, 1 Cubic Decimeter (dm³) = 0.2199692483 Gallon (UK) (gal (UK)).
Cubic Decimeter to Gallon (UK) — Common Values
| Cubic Decimeter (dm³) | Gallon (UK) (gal (UK)) |
|---|---|
| 0.1 | 0.02199692483 |
| 0.5 | 0.1099846241 |
| 1 | 0.2199692483 |
| 2 | 0.4399384966 |
| 5 | 1.099846241 |
| 10 | 2.199692483 |
| 25 | 5.499231207 |
| 50 | 10.99846241 |
| 100 | 21.99692483 |
| 500 | 109.9846241 |
| 1000 | 219.9692483 |
About Cubic Decimeter (dm³)
Definition
The cubic decimeter is a unit of volume equal to a cube with edges of one decimeter (0.001 m³), and is exactly equal to one liter.
Mathematical Relationship
1 dm³ = 0.001 m³ = 1 L = 1,000 cm³ = 10⁶ mm³. One cubic meter contains 1,000 dm³.
Conversion Formula
To liters: 1 dm³ = 1 L (exact). To cubic meters: divide by 1,000. To gallons (US): multiply by 0.264172.
Practical Applications
Used interchangeably with liters — applicable to beverage volumes, fuel measurements, and container sizing.
Interesting Facts
The dm³ is one of the few SI-derived units that has a more popular non-SI alternative (the liter) used even in scientific contexts.
Common Mistakes
Not recognizing that 1 dm³ = 1 L exactly. Some assume they are only approximately equal due to historical definitions.
Educational Tips
Visualize a cube that is 10 cm × 10 cm × 10 cm — that is one dm³ and also exactly one liter.
About Gallon (UK) (gal (UK))
Definition
The UK (imperial) gallon is a unit of volume equal to 160 UK fluid ounces, or exactly 4.54609 liters.
Mathematical Relationship
1 UK gal = 4 UK qt = 8 UK pt = 160 UK fl oz = 4.54609 L ≈ 1.201 US gal.
Conversion Formula
To liters: multiply by 4.54609. To US gallons: multiply by 1.20095. To cubic meters: multiply by 0.00454609.
Practical Applications
UK road signs (mpg), older fuel consumption references, and some Caribbean and Middle Eastern markets that still use imperial units.
Interesting Facts
A UK gallon is about 20% larger than a US gallon. A car rated at 40 mpg (UK) gets only about 33 mpg (US).
Common Mistakes
Misinterpreting UK mpg as US mpg — UK figures look higher because the imperial gallon is larger.
Educational Tips
UK gallon ≈ 4.55 L ≈ 1.2 US gallons. The UK gallon was defined so that 1 gallon of water = 10 pounds.