Convert 1 impgal to l

How to convert imperial gallons to liters

1. Formula: liters = imperial gallons × 4.54609
2. Put in the value: 1 imperial gallon.
3. Result: 4.54609 liters.

Imperial gallons to liters table

Converting the other way: liters to imperial gallons

imperial gallons = liters × 0.21996925. So 4.54609 liters is back to 1 imperial gallon; one liter is 0.21996925 imperial gallons. See the liters to imperial gallons table.

Quick estimate in your head

For a rough answer, multiply by about 4.5: 1 × 4.5 ≈ 4.5 l, against the exact 4.54609 l (1.0% out). Good enough to check that a calculated result is sensible.

Common mistakes

The usual slip is using the factor the wrong way round. A imperial gallon is bigger than a liter, so the number of liters must come out larger than the number of imperial gallons. If your answer goes the other way, divide instead of multiplying.

About the units

Imperial gallon (impgal) and liter (l) are both units of volume. One imperial gallon equals 4.54609 liters, and one liter equals 0.21996925 imperial gallons. Results on this page are rounded for display; the conversion itself uses the exact definitions.

Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.

1 imperial gallon in other units

The most readable unit for this amount is imperial gallons (1).

• 4,546.09 ml
• 4.54609 l
• 0.00454609 m3
• 922.329543 tsp
• 307.443181 tbsp
• 153.72159 floz
• 19.215199 cup
• 9.607599 pt
• 4.8038 qt
• 1.20095 gal

How this answer was calculated

The result is worked out from the numbers in this page's address when the page is opened, using exact arithmetic wherever possible and rounding only for display. Nothing is copied from a printed table. If you think an answer is wrong, please tell us through the contact page and we will check it.

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