Gallons (US) to Liters
Convert gallons (us) to liters instantly and accurately, both ways.
🔒 Instant, accurate, and runs entirely in your browser
Formula: 1 gal = 3.7854 L
Gallons (US) to Liters
To convert gallons (us) to liters, multiply the value by 3.7854. For example, 1 gal is 3.7854 L. Type any number above and the result updates instantly — and you can convert in the other direction just as easily. Everything runs in your browser.
Gallons (US) to Liters conversion table
| Gallons (US) (gal) | Liters (L) |
|---|---|
| 1 gal | 3.7854 L |
| 2 gal | 7.5708 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 |
| 50 gal | 189.2706 L |
Other popular conversions
How it works
Three steps. No sign-up, no upload, no wait.
1
Enter a value
Type a number of gallons (us) in the first box.
2
Read the result
The value in liters updates instantly.
3
Convert either way
You can also type in the liters box to convert back.
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Private by design.Everything happens right here in your browser. Your files are never uploaded — we never see them.
Frequently Asked Questions
How many liters are in a gallon (us)? ▼
One gallon (us) equals 3.7854 liters.
What is the formula to convert gallons (us) to liters? ▼
Use
1 gal = 3.7854 L.Is this converter accurate? ▼
Yes — it uses the exact internationally-defined conversion factor and updates live as you type. It runs entirely in your browser.
Do I need to install anything or sign up? ▼
No. It works instantly in your browser — no account, no install, nothing uploaded.