3 Gallon (US) to Liter
3 Gallon (US) (gal) equals
11.356235 L
3 × 3.785411784 = 11.356235 Liter
Convert Gallon (US) (gal) to Liter (L) instantly. 1 gal = 3.785412 L.
Volume Converter
40 units available
3 gal = 11.356235 L
Formula:
L = gal × 3.785411784With your value: 3 gal = 11.35623535 L
How big is that?
Everyday references on a logarithmic scale, all expressed in gallon (us) so you can sanity-check the result.
Other Gallon (US) to Liter conversions
Gallon (US) to Liter Conversion Table
| Gallon (US) (gal) | Liter (L) |
|---|---|
| 0.5 | 1.892706 |
| 1 | 3.785412 |
| 2 | 7.570824 |
| 5 | 18.927059 |
| 10 | 37.854118 |
| 15 | 56.781177 |
| 20 | 75.708236 |
| 25 | 94.635295 |
| 50 | 189.270589 |
| 100 | 378.541178 |
| 250 | 946.352946 |
| 500 | 1,892.705892 |
| 1000 | 3,785.411784 |
Liter to Gallon (US) Conversion Table
| Liter (L) | Gallon (US) (gal) |
|---|---|
| 0.5 | 0.132086 |
| 1 | 0.264172 |
| 2 | 0.528344 |
| 5 | 1.32086 |
| 10 | 2.641721 |
| 15 | 3.962581 |
| 20 | 5.283441 |
| 25 | 6.604301 |
| 50 | 13.208603 |
| 100 | 26.417205 |
| 250 | 66.043013 |
| 500 | 132.086026 |
| 1000 | 264.172052 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Gallon (US) (gal)
Volume
The US liquid gallon is exactly 231 cubic inches = 3.785 411 784 L.
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Liter (L)
Volume
The litre is exactly 10⁻³ m³ (1 dm³) and is accepted for use with the SI.
Source: Units accepted for use with the SI, SI Brochure Table 8
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Gallon (US) to Liter
To convert from Gallon (US) (gal) to Liter (L), multiply the value by 3.785411784.
Formula: L = gal × 3.785411784
Reverse: gal = L × 0.2641720524
Step-by-Step Example
- Start with your value in Gallon (US). For example: 5 gal
- Multiply by the conversion factor: 5 x 3.785411784
- The result is: 18.927059 L
About Gallon (US)
The US gallon equals approximately 3.785 liters and is the standard unit for fuel and large liquid volumes in the United States.
Fun Fact: The US gallon is about 20% smaller than the imperial (UK) gallon.
Common uses: fuel (US), beverages, swimming pools.
About Liter
The liter is a metric unit of volume equal to 1,000 milliliters or 1 cubic decimeter. It is widely used for measuring liquids.
Common uses: beverages, fuel, cooking.
Frequently Asked Questions
What is 3 Gallon (US) in Liter?
3 Gallon (US) equals 11.356235 Liter.
How many Liter are in 1 Gallon (US)?
There are exactly 3.785411784 Liter in 1 Gallon (US). This means the conversion factor from Gallon (US) to Liter is 3.785411784.
What is the formula to convert Gallon (US) to Liter?
The formula to convert Gallon (US) to Liter is: L = gal × 3.785411784. For example, to convert 10 Gallon (US) to Liter, you would multiply 10 by 3.785411784.
What is a Gallon (US)?
The US gallon equals approximately 3.785 liters and is the standard unit for fuel and large liquid volumes in the United States.
What is a Liter?
The liter is a metric unit of volume equal to 1,000 milliliters or 1 cubic decimeter. It is widely used for measuring liquids.
What are the common uses of Gallon (US)?
The Gallon (US) is commonly used in fuel (US), beverages, swimming pools.
Related Volume Conversions
Cite this page
UnitConvertLab. (2026). 3 Gallon (US) to Liter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/3-gallon_us-to-liter