---
title: "US gallons to Liters — gal to L converter"
description: "1 US gallon = 3.785412 liters. Convert US gallons to liters with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/gallons-to-liters/
site: "At One Place"
---

# US gallons to liters

**1 US gallon in liters: 1 gal = 3.785412 L**

L = gal × 3.785411784

To convert US gallons to liters, multiply by 3.785411784. The table below gives the values people look up most often, and the converter works for any number.

## US gallons to liters table

*Common US gallon values converted to liters.*

| US gallons | Liters |
| --- | --- |
| 1 gal | 3.785412 |
| 2 gal | 7.570824 |
| 3 gal | 11.35624 |
| 4 gal | 15.14165 |
| 5 gal | 18.92706 |
| 10 gal | 37.85412 |
| 15 gal | 56.78118 |
| 20 gal | 75.70824 |
| 25 gal | 94.63529 |
| 30 gal | 113.5624 |
| 40 gal | 151.4165 |
| 50 gal | 189.2706 |
| 75 gal | 283.9059 |
| 100 gal | 378.5412 |
| 250 gal | 946.3529 |
| 500 gal | 1,892.7059 |
| 1,000 gal | 3,785.4118 |

## How the conversion works

The relationship is L = gal × 3.785411784. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

> US gallon: US liquid gallon. The imperial gallon is about 20% larger.

## Common questions

### How many liters are in one US gallon?

One US gallon equals 3.785412 liters. L = gal × 3.785411784.

### How do you convert US gallons to liters?

Use L = gal × 3.785411784. So 10 gal is 37.85412 L.

### How many US gallons are in one liter?

One liter equals 0.26417 US gallons, which is the reverse of the conversion above.

### Is there more than one kind of US gallon?

US liquid gallon. The imperial gallon is about 20% larger.

## Related pages

- [Liters to US gallons](https://atoneplace.net/convert/liters-to-gallons/)
- [US gallons to Milliliters](https://atoneplace.net/convert/gallons-to-ml/)
- [US gallons to Cubic meters](https://atoneplace.net/convert/gallons-to-cubic-meters/)
- [US gallons to US quarts](https://atoneplace.net/convert/gallons-to-quarts/)
- [US gallons to US pints](https://atoneplace.net/convert/gallons-to-pints/)
- [US gallons to US cups](https://atoneplace.net/convert/gallons-to-cups/)
- [US gallons to US fluid ounces](https://atoneplace.net/convert/gallons-to-fl-oz/)
- [US gallons to Tablespoons](https://atoneplace.net/convert/gallons-to-tablespoons/)
- [US gallons to Teaspoons](https://atoneplace.net/convert/gallons-to-teaspoons/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)