Gallon (US) to Liter Converter
Convert gallon (us)s to liters (gal to L) instantly with this free online volume converter. Enter any value in the Gallon (US) field and get the equivalent in Liter immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 gal = 3.78541 L. To convert gallon (us)s to liters, multiply your Gallon (US) value by 3.78541. For example, 10 gal = 37.8541 L. You can also reverse the calculation: 1 L = 0.2641721769 gal.
Quick conversion table
| Gallon (US) (gal) | Liter (L) |
|---|---|
| 1 gal | 3.78541 L |
| 5 gal | 18.92705 L |
| 10 gal | 37.8541 L |
| 25 gal | 94.63525 L |
| 50 gal | 189.2705 L |
| 100 gal | 378.541 L |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the volume category.
Formula
Gallon (US) to Liter conversion: 1 gal = 3.78541 L liters = gallon (us)s × 3.78541 1 L = 0.2641721769 gal gallon (us)s = liters × 0.2641721769
Example
Example: Convert 10 gal to L: 10 gal × 3.78541 = 37.8541 L So, 10 gal is about 37.8541 L. To convert back, multiply by 0.2641721769: 37.8541 L × 0.2641721769 = 10 gal.
How to Use
- Enter the value you want to convert in the Gallon (US) field
- The result in Liter appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert gallon (us)s to liters?
Enter the value in Gallon (US) (gal) in the 'From' field. The equivalent in Liter (L) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert gal to L?
1 gal = 3.78541 L, so liters = gallon (us)s × 3.78541. To convert back, 1 L = 0.2641721769 gal. The full formula and a worked example are shown on this page.
How many liters are in one Gallon (US)?
1 gal = 3.78541 L.
Is this Gallon (US) to Liter converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert liters back to gallon (us)s?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other volume unit for either field.
How accurate is the gal to L conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.