Liters to US gallons Converter

Converting liters to US gallons is a multiplication by a fixed factor: 1 L = 0.2641721 gal. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.

Because one liter works out to 0.2641721 gal, the us gallon is the much smaller unit of the two: a figure given in us gallon always carries a smaller number than the same measurement in liter. A chart drawn in L can hide that, so check which label the axis uses before you compare two readings.

When a container size is certified in US gallons but you are dosing in liters, it pays to convert from the certified figure rather than from a rounded label.

The conversion factor used here is 0.2641721 gal per liter (7 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 L a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 3.785412 L per gal, the exact reciprocal, so a round trip through both pages returns your original number.

Liters to US gallons formula

Use this formula to convert any liter value to US gallons:

gal = L × 0.2641721

Worked example: 100 L × 0.2641721 = 26.41721 gal.

Liters to US gallons conversion table

Liters (L)US gallons (gal)
0.5 L0.132086 gal
1 L0.2641721 gal
2 L0.5283441 gal
5 L1.32086 gal
10 L2.641721 gal
20 L5.283441 gal
50 L13.2086 gal
100 L26.41721 gal
500 L132.086 gal
1000 L264.1721 gal

How to convert liters to US gallons

Multiply the liter value by 0.2641721 to get the equivalent in US gallons. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.

If you need the opposite direction, use the US gallons to Liters converter instead of dividing by hand; both pages use the same source factors. For every other L conversion in one place, see the L conversion hub.

Frequently asked questions

How many US gallons are in 1 liter?
1 liter = 0.2641721 gal.

What is 100 liters in US gallons?
100 L = 26.41721 gal.

Is converting liters to US gallons the same as US gallons to liters?
No — the direction changes the multiplier. The reverse conversion (1 gal = 3.785412 L) is on the US gallons to Liters page.

Related conversions

Try the ConvBolt Unit Converter for any other volume unit, browse the Volume conversions, or read our conversion guides.