Convert Imperial Gallon to Kiloliter
Convert imperial gallons to kiloliters instantly. 1 imperial gallon = 0.00454609 kiloliter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Kiloliter to Imperial Gallon converter for the reverse conversion.
Units explained
Imperial Gallon
The imperial gallon is defined as exactly 4.54609 liters.
Set by the British Weights and Measures Act of 1824 as the volume of 10 lb of water.
Used for fuel and beverages in the UK and Commonwealth.
UK, 1824.
Kiloliter
A kiloliter is 1,000 liters, exactly equal to one cubic meter.
Formed with the SI prefix kilo- applied to the liter.
Used for water supply, tanks and bulk liquid storage.
Metric prefix system.
Imperial Gallon to Kiloliter conversion formula
The relationship between imperial gallons and kiloliters:
To convert imperial gallons to kiloliters, multiply the value in imperial gallons by 0.00454609. To reverse, multiply kiloliters by 219.9692482991.
How to use this converter
Type a value into the calculator. The result in kiloliters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Kiloliter to Imperial Gallon converter for the reverse direction.
Step-by-step: convert imperial gallons to kiloliters
- Write down the value in imperial gallons (gal).
- Multiply that value by the factor 0.00454609.
- The product is the equivalent value in kiloliters (kL).
- To reverse, multiply the kiloliter value by 219.9692482991.
Worked examples
Example 1 — Convert 1 gal to kL:
1 × 0.00454609 = 0.00454609 kL
Example 2 — Convert 100 gal to kL:
100 × 0.00454609 = 0.454609 kL
Real-world example — Furniture and large objects
A 72-imperial gallon piece of furniture converts to a value in kiloliters that's easier to mentally compare with room dimensions. This is the typical workflow when shopping internationally and product specs use a different unit than your room measurements.
72 gal × 0.00454609 = 0.32731848 kL
Real-world example — Children's height milestones
A 150-imperial gallon-tall child measures a value in kiloliters that's commonly used for theme-park ride height requirements when travelling between countries that use different measurement units.
150 gal × 0.00454609 = 0.6819135 kL
Real-world example — Body height conversion
You enter your height as 180 imperial gallons into an international job or visa application. The form then asks for the same value in kiloliters — converting between these adjacent units is one of the most-used length conversions globally.
180 gal × 0.00454609 = 0.8182962 kL
Imperial Gallon to Kiloliter conversion table
Standard reference values for converting imperial gallons to kiloliters:
| Imperial Gallon [gal] | Kiloliter [kL] |
|---|---|
| 0.01 | 4.54609e-5 |
| 0.1 | 0.000454609 |
| 1 | 0.00454609 |
| 2 | 0.00909218 |
| 3 | 0.01363827 |
| 4 | 0.01818436 |
| 5 | 0.02273045 |
| 10 | 0.0454609 |
| 20 | 0.0909218 |
| 30 | 0.1363827 |
| 40 | 0.1818436 |
| 50 | 0.2273045 |
| 100 | 0.454609 |
| 500 | 2.273045 |
| 1000 | 4.54609 |
Frequently asked questions
How many kiloliters is 1 imperial gallon?
How do I convert imperial gallons to kiloliters?
How do I convert kiloliters back to imperial gallons?
How many kiloliters is 100 imperial gallons?
Popular volume unit conversions
Convert Imperial Gallon to other volume units
Show all Imperial Gallon conversions
Metric / SI (15 units)
US Customary (Liquid) (15 units)
US Customary (Dry) (5 units)
Imperial (UK) (13 units)
Cubic (length-derived) (4 units)
Cooking / Culinary (5 units)
Sources & references
Conversion factor (1 gal = 0.00454609 kL) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.