Convert gallons to liters
L = gal × 3.78541. 20 gal = 75.7082 L.
L = gal × 3.78541 — 1 gal is 3.78541 L
Common values, converted exactly
| gallons (gal) | liters (L) |
|---|---|
| 1 gal | 3.78541 L |
| 2 gal | 7.57082 L |
| 3 gal | 11.3562 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
| 15 gal | 56.7812 L |
| 20 gal | 75.7082 L |
| 25 gal | 94.6353 L |
| 30 gal | 113.562 L |
| 40 gal | 151.416 L |
| 50 gal | 189.271 L |
| 100 gal | 378.541 L |
To convert gallons to liters, apply L = gal × 3.78541. For example, 20 gal = 75.7082 L, and 1 gal is 3.78541 L.
A US liquid gallon is exactly 231 cubic inches, which is 3.785411784 L. The imperial gallon used in the UK is 4.54609 L — about 20% larger — so a "gallon" figure is meaningless without knowing which one. These are US gallons.
Everything on this page is computed in your browser from the exact definitions above — the table is not a stored list of pre-rounded answers, and neither is the converter. For a unit not covered here, the full unit converter handles length, weight, volume, temperature and cooking measures.
How many liters is 20 gal?
20 gal = 75.7082 L. L = gal × 3.78541, so any amount converts the same way — the table on this page lists the values most often looked up.
What is the formula for converting gallons to liters?
L = gal × 3.78541. A US liquid gallon is exactly 231 cubic inches, which is 3.785411784 L. The imperial gallon used in the UK is 4.54609 L — about 20% larger — so a "gallon" figure is meaningless without knowing which one. These are US gallons.
Is the gallons to liters conversion exact?
The underlying relationship is an exact definition, not a measurement. The decimal factor shown (3.78541 L) is a rounding of it, so results here are given to six significant figures — enough for any practical use, and you can see the exact definition above.
How do I convert liters back to gallons?
Use the reverse of the same relationship; the liters to gallons page has its own table and converter.