Gallon (UK) to Milliliter Conversion Calculator: Free Online Tool
Convert UK gallons to milliliters with our free online volume converter.
Gallon (UK) to Milliliter Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Gallon (UK)).
- The converted value in Milliliter will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Volume category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Gallon (UK) to Milliliter
Converting Gallon (UK) to Milliliter involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Gallon (UK) = 4546.09 millilitersExample Calculation:
Convert 10 UK gallons: 10 × 4546.09 = 4.5461e+4 milliliters
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
What is a Gallon (UK) and a Milliliter?
The UK gallon (Imperial gallon) is a unit of volume defined as 4.54609 litres.
The milliliter (symbol mL or ml) is a metric unit of volume equal to one-thousandth of a liter (1/1000 L). It is also equivalent to exactly one cubic centimeter (1 cm³). The milliliter is widely used in scientific measurements, medicine, and cooking.
Note: The Gallon (UK) is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Milliliter belongs to the metric (SI) system.
History of the Gallon (UK) and Milliliter
The Imperial gallon was defined based on the volume of 10 pounds of distilled water weighed in air with brass weights with the barometer standing at 30 inches of mercury and at a temperature of 62 °F.
The milliliter derives directly from the liter, established in France in 1795. As the metric system gained international acceptance, prefixes like 'milli-' (meaning one-thousandth) were applied to base units to create smaller or larger units. The equivalence 1 mL = 1 cm³ is a fundamental relationship in the metric system.
Common Uses for UK gallons and milliliters
Explore the typical applications for both Gallon (UK) (imperial/US) and Milliliter (metric) to understand their common contexts.
Common Uses for UK gallons
- Fuel Measurement: Used for measuring fuel (petrol, diesel) in the UK and some Commonwealth countries.
- Beverages: Selling milk and other beverages in large containers in the UK.
- Household Liquids: Measuring paint and other household liquids.
- Pools & Water: Pool capacity and water usage measurements in the UK.
- Industry: Some industrial applications in countries using the Imperial system.
Common Uses for milliliters
- Medicine: Measuring liquid medicines and dosages.
- Laboratory: Laboratory work involving small liquid volumes (pipettes, burettes).
- Culinary: Cooking and baking recipes, especially for liquids.
- Packaging: Volume measurements on small containers (e.g., cosmetics, travel-size toiletries).
- Science: Scientific notation for small volumes.
Frequently Asked Questions
Questions About Gallon (UK) (gal)
Is a UK gallon the same as a US gallon?
No, the UK (Imperial) gallon is defined as 4.54609 liters, while the US liquid gallon is defined as 3.785411784 liters. The UK gallon is approximately 20% larger than the US gallon.
How many pints are in a UK gallon?
There are exactly 8 Imperial pints in 1 UK (Imperial) gallon. This is the same number as in the US system, but since the Imperial pint is larger than the US pint, the total volume differs.
When did the UK adopt the Imperial gallon?
The Imperial gallon was established in 1824 as part of the British Weights and Measures Act, which standardized various units throughout the British Empire. Prior to this standardization, several different gallon measures were in use for different purposes.
About Milliliter (mL)
Is a milliliter the same as a cubic centimeter (cc)?
Yes, 1 milliliter (mL) is exactly equal to 1 cubic centimeter (cm³ or cc). The terms are often used interchangeably, especially in medical and automotive contexts (e.g., engine displacement often uses cc).
How many milliliters are in a liter?
There are 1,000 milliliters (mL) in 1 liter (L).
Is mL or ml the correct symbol?
Both are technically correct and commonly understood. Similar to the liter (L/l), the capitalized version 'mL' is often preferred in publishing and medicine to avoid confusion between 'l' and the number '1'.
Conversion Table: Gallon (UK) to Milliliter
| Gallon (UK) (gal) | Milliliter (mL) |
|---|---|
| 1 | 4,546.09 |
| 5 | 22,730.45 |
| 10 | 45,460.9 |
| 25 | 113,652.25 |
| 50 | 227,304.5 |
| 100 | 454,609 |
| 500 | 2,273,045 |
| 1,000 | 4,546,090 |