Supported Volume & Capacity Units
- US Gallon (gal): 3.78541 liters or 128 US fluid ounces.
- Liter (L): 1,000 milliliters or 1 cubic decimeter.
- Milliliter (mL): 1/1,000 of a liter (1 cm³).
- US Cup: 236.588 mL or 8 US fluid ounces.
How Volume & Capacity Conversion Works
Volume scales linearly by capacity factors. 1 US liquid gallon is defined as 231 cubic inches, which equals 3.785411784 liters.
Frequently Asked Questions
How many liters are in a gallon?
1 US liquid gallon equals approximately 3.78541 liters.
How many milliliters are in a US cup?
1 US customary cup equals 236.588 milliliters (often rounded to 240 mL in food labeling).