Volume Converter
Convert capacity and volume units across US customary, imperial, and metric standards.
Key Volume Conversion Equivalencies
Explore our other converters: Length Converter, Area Converter, Weight Converter, and Temperature Converter.
Frequently Asked Questions About Volume Conversion
Clarifications on US vs Imperial liquid units and metric cubic standards.
What is the difference between a US gallon and an Imperial gallon?▼
A US liquid gallon is defined as 231 cubic inches, exactly 3.785411784 liters. An Imperial gallon (used in the UK and Canada) is defined as the volume of 10 pounds of water, exactly 4.54609 liters. An Imperial gallon is approximately 20% larger than a US gallon.
How many milliliters are in a US fluid ounce?▼
One US fluid ounce equals approximately 29.5735 mL. In contrast, one Imperial fluid ounce equals approximately 28.4131 mL.
How do cubic meters convert to liters?▼
Exactly 1,000 liters equal 1 cubic meter (1 m³ = 1,000 L). Similarly, 1 milliliter equals 1 cubic centimeter (1 mL = 1 cm³).