Volume may be quoted in liters, milliliters, cubic meters, or gallons. This page converts with standard factors and separates US and UK gallons.
Liters and milliliters
1 L = 1000 mL; 1 m³ = 1000 L for tanks and freight.
Pick the right gallon
US and UK gallons differ—mixing them skews fuel or recipe totals. Choose the correct gallon type here.
Kitchen measures
For spoons and cups, see the cooking converter.
Frequently asked questions
Liters to milliliters?
1 L = 1000 mL—exact decimal conversion on this page.
US gallon vs UK gallon?
A US gallon is ~3.785 L; a UK gallon ~4.546 L—the UK gallon is larger. Pick the correct gallon type on this page.
Cubic meters vs liters?
1 m³ = 1000 L. m³ for tanks and freight; L/mL for bottles—swap units here.
Link to length converter?
Volume is not the same as length—unless you multiply dimensions yourself. For distance units, use the length converter.
When use cubic feet?
Appliances and storage in North America may quote ft³. Compare with L or m³ here.
Can I save my inputs?
Yes. Copy link below the form keeps your current inputs so you can share the scenario or save it for later.