A US liquid gallon equals 4 US quarts, or exactly 3.785411784 liters.
Gallon to Liter
Convert Gallon to Liter instantly. Free online cooking unit converter with exact formula, conversion table and FAQ.
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Cooking Converter
Convert cooking volume and mass units used in recipes and nutrition workflows.
Context values
Some unit families need one extra value for a physically accurate result.
The liter is the base metric unit of volume used throughout this converter, equal to 1,000 milliliters.
L = gal × 3.785411784
Results update instantly for Gallon to Liter conversions.
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Formula
L = gal × 3.785411784
gal = L × 0.2641720524
Conversion table
| 1 gal | 3.785412 L |
| 5 gal | 18.927059 L |
| 10 gal | 37.854118 L |
| 20 gal | 75.708236 L |
| 50 gal | 189.270589 L |
| 100 gal | 378.541178 L |
| 500 gal | 1892.705892 L |
| 1000 gal | 3785.411784 L |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the gallon (gal). A US liquid gallon equals 4 US quarts, or exactly 3.785411784 liters.
What is the destination unit in this conversion?
The destination unit is the liter (L). The liter is the base metric unit of volume used throughout this converter, equal to 1,000 milliliters.
How do I convert gallon to liter?
Multiply the gallon value by 3.785411784. For example, 10 gal × 3.785411784 = 37.854118 L.
Is the gallon to liter conversion exact?
Yes. This conversion uses a fixed factor defined for cooking measurement standards, so results are consistent every time.
Where is this conversion commonly used?
It's used when following recipes, adjusting ingredient quantities, or converting between US customary and metric cooking measurements.
Can I convert liter back to gallon?
Yes. Multiply the liter value by 0.2641720524 to get gallon.
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About this conversion
This page converts gallon (gal) to liter (L) within the cooking converter.
A US liquid gallon equals 4 US quarts, or exactly 3.785411784 liters. The liter is the base metric unit of volume used throughout this converter, equal to 1,000 milliliters.
The formula is L = gal × 3.785411784, based on each unit's fixed relationship to the cooking converter's reference units.
Results are consistent because the conversion relies on a fixed numerical ratio rather than an estimate.
Use the calculator above for instant results, or the table below for common gallon values already converted to liter.