Gallon (UK) to Deciliter Converter

Volume Converter

40 units available

Decimals:

From

To

45.4609

1 gal (UK) = 45.4609 dL

Formula:

dL = gal (UK) × 45.4609

With your value: 1 gal (UK) = 45.4609 dL

How big is that?

Everyday references on a logarithmic scale, all expressed in gallon (uk) so you can sanity-check the result.

Milk carton (1/4.5e+3 your value)0.000220 gal (UK)

Kitchen bucket (1/4.5e+2 your value)0.00220 gal (UK)

Car fuel tank (1/91 your value)0.0110 gal (UK)

Bathtub (1/23 your value)0.0440 gal (UK)

Hot tub (1/3.0 your value)0.330 gal (UK)

Your value1.00 gal (UK)

Other Gallon (UK) to Deciliter conversions

2 gal (UK) to dL 3 gal (UK) to dL 4 gal (UK) to dL 5 gal (UK) to dL 6 gal (UK) to dL 7 gal (UK) to dL 8 gal (UK) to dL

Gallon (UK) to Deciliter Conversion Table

Gallon (UK) (gal (UK))	Deciliter (dL)
0.5	22.73045
1	45.4609
2	90.9218
5	227.3045
10	454.609
15	681.9135
20	909.218
25	1,136.5225
50	2,273.045
100	4,546.09
250	11,365.225
500	22,730.45
1000	45,460.9

Deciliter to Gallon (UK) Conversion Table

Deciliter (dL)	Gallon (UK) (gal (UK))
0.5	0.010998
1	0.021997
2	0.043994
5	0.109985
10	0.219969
15	0.329954
20	0.439938
25	0.549923
50	1.099846
100	2.199692
250	5.499231
500	10.998462
1000	21.996925

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 (UK) (gal (UK))

Volume

Exact conversion

The imperial gallon is exactly 4.546 09 L (Weights and Measures Act 1985).

Source: NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Deciliter (dL)

Volume

Exact conversion

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 (UK) to Deciliter

To convert from Gallon (UK) (gal (UK)) to Deciliter (dL), multiply the value by 45.4609.

Formula: dL = gal (UK) × 45.4609

Reverse: gal (UK) = dL × 0.0219969248

Step-by-Step Example

Start with your value in Gallon (UK). For example: 5 gal (UK)
Multiply by the conversion factor: 5 x 45.4609
The result is: 227.3045 dL

About Gallon (UK)

The imperial gallon equals exactly 4.54609 litres, about 20% larger than the US gallon — a frequent source of fuel-economy confusion.

Common uses: UK fuel figures, brewing, older recipes.

About Deciliter

The deciliter (dL) is a unit of volume and capacity. One deciliter equals 0.1 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: volume calculations, engineering and science, education.

Frequently Asked Questions

How many Deciliter are in 1 Gallon (UK)?

There are exactly 45.4609 Deciliter in 1 Gallon (UK). This means the conversion factor from Gallon (UK) to Deciliter is 45.4609.

What is the formula to convert Gallon (UK) to Deciliter?

The formula to convert Gallon (UK) to Deciliter is: dL = gal (UK) × 45.4609. For example, to convert 10 Gallon (UK) to Deciliter, you would multiply 10 by 45.4609.

What is a Gallon (UK)?