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Volume

gal (UK)toL

Convert imperial gallons (gal (UK)) to litres (L).

Factor1 gal (UK) = 4.54609 L

Converter

gal (UK)

Accepts numbers or expressions, e.g. 150 + 14.7

Result
45.4609L

Rendered to 6 significant figures.

Formula

Formula
L = gal (UK) × 4.54609

Multiply any value in imperial gallons by 4.54609 to obtain the value in litres.

Worked example

Convert 10 gal (UK) to L.

  1. 01Start with 10 gal (UK).
  2. 02Multiply by the conversion factor: 10 × 4.54609 = 45.4609 L.
Result10 gal (UK) = 45.4609 L

Conversion table

gal (UK)L
14.5461
29.0922
522.73
1045.461
2090.922
50227.3
100454.61
200909.22
5002273
10004546.1

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gal (UK) to L?
1 gal (UK) equals 4.54609 L. To convert, multiply the value in imperial gallons by 4.54609.
How do I convert 1 gal (UK) to L?
1 gal (UK) = 4.54609 L. For any value, multiply by 4.54609.
How do I convert L back to gal (UK)?
Divide by the same factor — or equivalently, multiply by 0.2199692. So 1 L = 0.219969 gal (UK).
When would I need to convert imperial gallon to litre?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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