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Volume conversion

US gallon to Litre

One us gallon is 3.785412 litres. Enter any value below to convert it instantly, or use the reference table further down for the numbers you need most often.

1 gal = 3.785412 LInstantFree

Conversion rate

1 gal = 3.785412 L

L = gal × 3.785412

Result3.785412

1 gal = 3.785412 L

1 gal in every volume unit
ml3,785.412
L3.785412
m³0.0037854
tsp768
tbsp256
fl oz128
cup16
pt8
qt4
gal1
gal (UK)0.83267

Reference

US gallon to Litre table

The values people look up most often, rounded for practical use.

US gallon (gal)Litre (L)
1 gal3.785412 L
2 gal7.570824 L
3 gal11.35624 L
5 gal18.92706 L
10 gal37.85412 L
15 gal56.78118 L
20 gal75.70824 L
25 gal94.63529 L
50 gal189.271 L
100 gal378.541 L
250 gal946.353 L
500 gal1,892.706 L
1,000 gal3,785.412 L

How to convert gallons to litres

Multiply the number of gallons by 3.785412. That is the whole calculation: L = gal × 3.785412. To go back the other way, divide instead, or multiply by 0.26417.

Worked example: 12 gallons × 3.785412 = 45.42494 litres.

Where this conversion comes up

Volume conversions are mostly a cooking problem, and there is a trap: US and imperial measures share names but differ in size. A US pint is 473 ml, an imperial pint is 568 ml. The units here are US measures unless labelled otherwise.

Quick answers

More conversions

Other volume conversions

L → gal1 = 0.26417ml → fl oz1 = 0.033814fl oz → ml1 = 29.57353ml → cup1 = 0.0042268cup → ml1 = 236.588tbsp → ml1 = 14.78676tsp → ml1 = 4.928922L → ml1 = 1,000

Answers

Frequently asked questions

One us gallon equals 3.785412 litres. Going the other way, one litre is 0.26417 gallons.

Use L = gal × 3.785412. The converter above applies it for you, but the formula is useful in a spreadsheet — put your value in column A and the formula in column B.

The underlying factor is the exact internationally defined value. Results are rounded for readability, so very long decimals are trimmed — but the calculation itself carries full double precision.

Yes — press the ⇄ swap button in the converter, or use the dedicated Litre to US gallon page.

No. The converter runs entirely in your browser, there is no account, and nothing you type is sent anywhere.

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