ExactConverter

Volume conversion

100 gal to L

378.541 L

100 US gallons = 378.541 litres. Exact factor: L = gal × 3.785411784.

Live converter

Edit either field — the other updates instantly. Type decimal values like 38.4.

The formula

L = gal × 3.785411784

Worked example: 100 × 3.785411784 = 378.541 L.

Values near 100 gal

gal L
97 367.185
98 370.97
99 374.756
100this page 378.541
105 397.468
110 416.395
115 435.322

Frequently asked

How do you convert US gallons to litres?

Apply the formula L = gal × 3.785411784. Enter any value in the live converter above and the result updates as you type.

What is 100 gal in L?

100 gal equals 378.541 L. The reference table below shows the values immediately around 100 gal.

Is this conversion exact?

Yes. The US gallon is defined as exactly 231 cubic inches. The imperial gallon is 4.546 L, so UK fuel economy figures are not comparable.