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Liters to Gallons

Liters (L) to gallons (US) (gal).

Result2.64172gal

Precision (significant figures)

Formula

gal = L × 0.264172

1 L = 0.264172 gal

US gallons = liters ÷ 3.785411784. A US gallon is defined as 231 cubic inches, exactly 3.785411784 L, so 10 L is 2.64172 US gallons. A UK (imperial) gallon is larger, at 4.54609 L, which gives 2.19969 UK gallons.

Formula

gal = L × 0.264172

Worked example

  1. Start with 10 L.
  2. Multiply by 0.264172 (gal per L): 10 × 0.264172 = 2.64172 gal.

Liters to gallons chart

Liters (L)Gallons (US) (gal)
10.264172
20.528344
3.7850.999891
41.05669
51.32086
102.64172
153.96258
205.28344
256.6043
4010.5669
5013.2086
6015.8503
7519.8129
10026.4172
20052.8344
1,000264.172

When you need this conversion

Fuel, water storage, aquariums, paint, and cooking in large batches. Fuel is sold per liter almost everywhere except the US, where it’s per gallon.

US vs UK gallons

  • 1 US gallon = 3.785 L
  • 1 UK gallon = 4.546 L

This converter uses US gallons by default. Choose “gal (UK)” in the unit menu for imperial gallons. UK fuel economy figures (mpg) use imperial gallons, which is why UK mpg numbers look higher than US ones for the same car.

Quick reference (US gallons)

  • 1 L = 0.264172 gal
  • 4 L = 1.05669 gal
  • 10 L = 2.64172 gal
  • 50 L = 13.2086 gal
  • 100 L = 26.4172 gal

Common mistakes

Using US gallons for UK figures. A 60 L tank is 15.85 US gallons but only 13.2 UK gallons.

Confusing dry and liquid gallons. The US dry gallon (4.405 L) is rarely used today; this converter uses the liquid gallon.

For the reverse, use gallons to liters.

Questions

How many gallons is 1 liter?

0.264172 US gallons, or 0.219969 UK gallons.

How many gallons is 20 liters?

5.28344 US gallons (4.39938 UK gallons).

Why are US and UK gallons different?

The US kept the old wine gallon of 231 cubic inches; the UK redefined its gallon in 1824 as the volume of 10 lb of water, about 20% larger.

How many liters is a US gallon?

Exactly 3.785411784 L.

Sources

Last reviewed 2026-09-24. How we check values · Report a problem with this page

Further reading