How many Imperial gallons are in one liter?

There are 0.219969248 Imperial gallons in 1 liter.

How do you convert Imperial gallons to liters?

Multiply the number of Imperial gallons by 4.54609 — or use the formula L = imp gal × 4.54609.

What is 6 Imperial gallons in liters?

6 Imperial gallons is 27.27654 liters. 6 × 4.54609 = 27.27654 liters.

Is the Imperial gallons to liters conversion exact?

Yes. The relationship is fixed by definition, so 4.54609 is an exact conversion factor — only the displayed result is rounded.

Imperial Gallons to Liters Converter

Convert Imperial gallons to liters instantly with this free Imperial gallons to liters converter. Enter any value to get an accurate volume conversion, plus the formula, the conversion factor and a full reference table.

What is 1 Imperial gallon in liters?

1 Imperial gallon is equal to exactly 4.54609 liters.

1 × 4.54609 = 4.54609 liters

Amount

Result4.54609

1 Imperial gallon = 4.54609 liters

Imperial gallons to Liters formula

L = imp gal × 4.54609

The Imperial gallons to liters conversion factor is 4.54609, which is exact by definition. 1 Imperial gallon = 4.54609 liters, and 1 liter = 0.219969248299 Imperial gallons.

Regional note. Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the Imperial gallon.

Worked examples

2 Imperial gallons = 9.09218 liters — 2 × 4.54609 = 9.09218 liters
6 Imperial gallons = 27.27654 liters — 6 × 4.54609 = 27.27654 liters
10 Imperial gallons = 45.4609 liters — 10 × 4.54609 = 45.4609 liters

Imperial gallons to Liters conversion table

Every value below is calculated with the exact conversion factor and rounded for display.

Imperial gallons to liters conversion table
Imperial gallons (imp gal)	Liters (L)
1 imp gal	4.54609 L
2 imp gal	9.09218 L
3 imp gal	13.63827 L
4 imp gal	18.18436 L
5 imp gal	22.73045 L
6 imp gal	27.27654 L
7 imp gal	31.82263 L
8 imp gal	36.36872 L
9 imp gal	40.91481 L
10 imp gal	45.4609 L
12 imp gal	54.55308 L
15 imp gal	68.19135 L
20 imp gal	90.9218 L
25 imp gal	113.65225 L
30 imp gal	136.3827 L
50 imp gal	227.3045 L
75 imp gal	340.95675 L
100 imp gal	454.609 L
500 imp gal	2,273.045 L
1,000 imp gal	4,546.09 L

When you need to convert Imperial gallons to liters

Scaling recipes between metric millilitres and US cups, pints or fluid ounces.
Comparing fuel prices and tank capacities between countries.
Working out paint, fertiliser or pool chemical quantities from instructions written for another market.

Getting a feel for the scale

A converted number is easier to trust when you can picture it. These reference points let you sanity-check the result at a glance.

Imperial gallon (imp gal)

An Imperial gallon is about 1.2 US gallons
UK fuel prices are quoted per litre, not per gallon

Liter (L)

A large water bottle is 1 L
A standard wine bottle is 0.75 L

Common mistakes to avoid

Dividing when you should multiply. Because 1 Imperial gallon = 4.54609 liters, the answer should be larger than the number you started with.
Mixing US and Imperial liquid measures. The Imperial gallon and pint are about 20% larger than their US counterparts, which is enough to ruin a recipe or misstate fuel economy.
Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.

How precise does the answer need to be?

Cooking tolerates rounding to the nearest 5 mL or quarter cup. Dosing, chemistry and pool treatment do not — keep the full converted value there.

How these units are defined

Imperial gallon (imp gal): Exactly 4.54609 liters — the gallon used in the UK and historically in Canada. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Liter (L): 1,000 cubic centimeters; the everyday metric volume unit. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.

Frequently asked questions

What is 1 Imperial gallon in liters?: 1 Imperial gallon is equal to 4.54609 liters.
How many Imperial gallons are in one liter?: There are 0.219969248 Imperial gallons in 1 liter.
How do you convert Imperial gallons to liters?: Multiply the number of Imperial gallons by 4.54609 — or use the formula L = imp gal × 4.54609.
What is 6 Imperial gallons in liters?: 6 Imperial gallons is 27.27654 liters. 6 × 4.54609 = 27.27654 liters.
Is the Imperial gallons to liters conversion exact?: Yes. The relationship is fixed by definition, so 4.54609 is an exact conversion factor — only the displayed result is rounded.
Does this use US or Imperial liters?: Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the Imperial gallon.