US liquid gallon to milliliter
Convert US liquid gallon (US gal) to milliliter (mL). Use an editable volume converter, conversion formula, and reference table.
1 US gal = 3,785.411784 mL
Conversion formula
One US liquid gallon equals 3,785.411784 milliliter. Multiply your value in US liquid gallon by this factor to get milliliter. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 US liquid gallon:5 × 3,785.411784 = 18,927.05892 mL
Conversion table
| US liquid gallon (US gal) | milliliter (mL) |
|---|---|
| 0.01 | 37.85411784 |
| 0.1 | 378.5411784 |
| 1 | 3,785.411784 |
| 2 | 7,570.823568 |
| 5 | 18,927.05892 |
| 10 | 37,854.11784 |
| 25 | 94,635.2946 |
| 50 | 189,270.5892 |
| 100 | 378,541.1784 |
| 1000 | 3,785,411.784 |
About these measurements
Volume describes three-dimensional space or liquid capacity.
The base reference used here is the liter. One US liquid gallon is 3.785411784 base units; one milliliter is 0.001 base units.
Important distinctions
US liquid measures and Imperial measures are different. Dry gallons and recipe cups are excluded.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert US gal to mL?
Multiply the quantity in US gal by 3,785.411784. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the milliliter to US liquid gallon converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
