Convert Liter to Gallon UK - Accurate L ⇄ gal UK Conversion Tool

Convert between liters (L) and UK gallons with precision using standard volume measurements

Liter to Gallon (UK) Converter Tool

Enter a value to convert between liters and UK gallons with bidirectional conversion (1 UK gal = 4.54609 L)

Liters (L)

Gallons (UK)

Note: This converter uses standard conversion (1 UK gallon = 4.54609 liters). Perfect for fuel consumption calculations, liquid measurements in the UK, and international volume conversions.

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Measuring liquid volume accurately is important in cooking, science, automotive, and trade. Two widely used units are the liter (L) from the metric system and the UK gallon (Imperial gallon) from the British Imperial system.

A liter is the standard in most countries, while the UK gallon is still recognized in the United Kingdom and some Commonwealth nations. To compare recipes, fuel efficiency, or fluid storage capacity, you may need to convert liter to gallon UK or gallon UK to liter.Our liter ⇄ gallon UK converter ensures fast and reliable results.

Why Use Our Litre-to-Gallon UK Converter?

Official UK Imperial Standard: Uses the precise conversion factor (1 UK gallon = 4.54609 litres) as defined by international measurement authorities
Bi-Directional Conversion: Instantly convert litres to UK gallons OR UK gallons to litres with a single clickPinpoint Accuracy: Get results up to 10 decimal places for scientific precision, plus practical rounded values for everyday use.
Zero Manual Calculations: Enter your value and get instant results - no formulas, no calculators, no mistakes
Real-World Applications:
- Automotive: Calculate fuel economy (MPG UK) and tank capacity
- Cooking & Brewing: Scale recipes and measure large liquid volumes
- Trade & Commerce: Convert wholesale liquid quantities
- Science & Labs: Precise measurements for experiments
- Home Projects: Paint, water storage, and liquid supplies
UK vs US Clarity: Specifically designed for UK Imperial gallons (20% larger than US gallons) - no confusion

Quick Reference:
1 litre = 0.21997 UK gallons
5 litres = 1.0998 UK gallons
10 litres = 2.1997 UK gallons
20 litres = 4.3994 UK gallons

Pro Tip: Bookmark this page for quick access whenever you need L to gal UK conversions!

How to Use the Converter

Enter the value in liters or UK gallons.
Choose the conversion direction.
Get the instant result.
Apply the value in daily or professional use.

What is a Liter?

A liter (L) is a metric unit used to measure liquid volume. It's the standard measurement for liquids worldwide, including water, fuel, milk, and beverages.

1 liter = 1,000 milliliters (mL) 1 liter = 0.001 cubic meters

A liter is roughly the size of a standard water bottle or a small carton of milk. Imagine a cube that measures 10 cm on each side - that's exactly 1 liter.

Liters are commonly used to measure beverages such as soft drinks, juice, and water; fuels such as petrol and diesel; cooking ingredients and recipe volumes; and household products such as cleaning supplies, paint, and liquid detergents.

When converting between metric and Imperial measurements, 1 liter equals 0.21997 UK gallons, while 1 UK gallon equals 4.54609 liters.

For example, a small 0.5 L water bottle is 0.11 UK gallons, a large 2 L soda bottle is 0.44 UK gallons, a 5 L fuel can is 1.10 UK gallons, and a typical 50 L car fuel tank is 11.00 UK gallons.

Most of the world uses liters for measuring liquids, while the UK still uses gallons for fuel economy and some traditional measurements. Understanding both units helps you convert recipes, calculate fuel consumption, and compare product sizes internationally.

What is a UK Gallon or Imperial Gallon?

The UK gallon, officially known as the Imperial gallon, is the standard volume measurement system used across the United Kingdom and various Commonwealth nations for measuring liquids.

1 UK gallon = 4.54609 liters

The Imperial gallon remains the official measurement in the UK, Ireland, and parts of Canada, and continues to be used in several former British territories for fuel, beverages, and commercial liquid trades.

A UK gallon is significantly larger than its American counterpart:

UK Gallon: 4.546 liters
US Gallon: 3.785 liters
Difference: UK gallon is 20% bigger

This means 10 liters equals 2.20 UK gallons but 2.64 US gallons - a substantial difference that can affect fuel calculations, recipes, and industrial measurements.

The Imperial gallon can be broken down into smaller units:

1 UK gallon = 4 Imperial quarts
1 UK gallon = 8 Imperial pints
1 UK gallon = 160 Imperial fluid ounces

Despite the UK officially adopting the metric system, Imperial gallons are still widely used for:

Fuel economy ratings (miles per gallon/MPG)
Traditional beer and cider measurements
Automotive fluid specifications
Agricultural and industrial applications

When performing liter to gallon conversions, always verify whether you need UK (Imperial) or US gallons. A 20% measurement error can lead to significant miscalculations in fuel efficiency, recipe quantities, chemical mixing ratios, and commercial transactions.

Is a UK gallon the same as a US gallon?

No, they are totaly different.

UK Gallon = 4.54609 liters
US Gallon = 3.78541 liters

A UK gallon is about 20% larger than a US gallon.

Example:

10 liters = 2.20 UK gallons
10 liters = 2.64 US gallons

Why it matters: Using the wrong gallon type can cause errors in fuel calculations, recipes, and measurements. Always check if you need UK or US gallons.

Liter to Gallon UK Conversion Formula

Formula:
gal UK = L ÷ 4.54609

Liter to Gallon UK Conversion Example

10 L to UK gallons
Formula: gal UK = L ÷ 4.54609
Substitution: 10 ÷ 4.54609
Result = 2.20 gal UK
50 L to UK gallons
Formula: gal UK = L ÷ 4.54609
Substitution: 50 ÷ 4.54609
Result = 11.00 gal UK
100 L to UK gallons
Formula: gal UK = L ÷ 4.54609
Substitution: 100 ÷ 4.54609
Result = 22.00 gal UK

Gallon UK to Liter Conversion Formula

Formula:
L = gal UK × 4.54609

Gallon UK to Liter Conversion Example

1 UK gallon to liters
Formula: L = gal UK × 4.54609
Substitution: 1 × 4.54609
Result = 4.55 L
5 UK gallons to liters
Formula: L = gal UK × 4.54609
Substitution: 5 × 4.54609
Result = 22.73 L
10 UK gallons to liters
Formula: L = gal UK × 4.54609
Substitution: 10 × 4.54609
Result = 45.46 L

When Do You Need the Litre-to-Gallon UK Conversion?

Convert Liter to Gallon UK

Fuel Economy & Automotive:

The UK measures fuel efficiency in miles per gallon (MPG UK), requiring a precise L to gal UK conversion. Example: A car using 6 litres/100km equals approximately 47 MPG UK - essential for comparing vehicle performance across different markets.

Cooking, Brewing & Recipes:

Traditional British recipes often call for gallons (especially in commercial baking and home brewing), while modern measurements use litres. Converting 4.5 litres of homebrew wort to gallons UK (0.99 gal) ensures recipe accuracy and proper fermentation ratios.

Industrial & Commercial Trade:

Oil, chemicals, and beverages are sold internationally in litres, but UK contracts often specify gallon measurements. Accurate conversion prevents costly shipping errors - a 1000-litre shipment equals 220 UK gallons, not 264 US gallons.

Agricultural & Livestock:

Farmers measure water troughs, milk production, and pesticide mixing in both units. Daily milk yield of 25 litres per cow converts to 5.5 UK gallons for traditional farm records.

Aquariums & Water Storage:

Fish tanks sold in litres (120L, 200L) need gallon conversion for UK-made filters and treatment chemicals rated in gallons. A 200-litre tank = 44 UK gallons.

Education & Science Labs:

Chemistry experiments and physics calculations require switching between metric (litres) and Imperial (UK gallons), depending on equipment origin and curriculum standards.

Pro Insight: UK gallons are 20% larger than US gallons (4.546L vs 3.785L) - using the wrong conversion can lead to significant measurement errors in professional settings.

Liters (L) to UK Gallons (gal UK)

Liters (L)	UK Gallons (gal UK)
0.5	0.11
1	0.22
1.5	0.33
2	0.44
2.5	0.55
3	0.66
3.5	0.77
4	0.88
4.5	0.99
5	1.10
5.5	1.21
6	1.32
6.5	1.43
7	1.54
7.5	1.65
8	1.76
8.5	1.87
9	1.98
9.5	2.09
10	2.20
10.5	2.31
11	2.42
11.5	2.53
12	2.64
12.5	2.75
13	2.86
13.5	2.97
14	3.08
14.5	3.19
15	3.30
16	3.52
17	3.74
18	3.96
19	4.18
20	4.40
22	4.84
24	5.28
25	5.50
26	5.72
28	6.16
30	6.60
32	7.04
35	7.70
40	8.80
45	9.90
50	11.00
55	12.10
60	13.20
65	14.30
70	15.40
75	16.50
80	17.60
85	18.70
90	19.80
95	20.90
100	21.99
120	26.40
150	32.99
180	39.59
200	43.99
250	54.99
300	65.99
350	76.99
400	87.99
450	98.99
500	109.99
550	120.98
600	131.98
650	142.98
700	153.98
750	164.98
800	175.98
850	186.97
900	197.97
950	208.97
1000	219.97

Use our liter ⇄ gallon UK converter at Digital Calculator for fast, accurate, and easy results. Perfect for students, engineers, chefs, and professionals working with liquid capacity conversions.