Volume Converter
Convert milliliters, centiliters, liters and cubic meters to US gallons, US pints and US cups and back, with all seven units shown at a glance.
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
FAQ
Frequently Asked Questions
How do I convert between volume units?
1 liter = 1,000 ml = 1,000 cubic cm. 1 cubic meter = 1,000 liters. 1 US gallon = 3.785 liters. 1 imperial gallon = 4.546 liters.
What is the difference between US and imperial gallons?
One US gallon equals 3.785 liters, while one imperial gallon equals 4.546 liters. This also affects pints and cups. Always check which system is being used.
How many milliliters is a cup in the converter?
The converter uses the US cup of 236.588 ml; 2 cups make exactly 1 US pint (473.176 ml), and 500 ml equals 2.113379 cups. Other cup measures differ: the metric cup used in Australian and New Zealand recipes holds 250 ml, and the US cup on nutrition labels is 240 ml. Imperial (British) units are not included; a British pint holds 568 ml rather than 473 ml.
Guide
What is the Volume Converter?
The volume converter converts between litre, millilitre, cubic metre, cubic centimetre, gallon, pint, barrel and other units.
How does the Volume Converter work?
Enter the value and source unit. The calculator converts to all common volume units, distinguishing US and imperial units.
Key Data and Facts
1 litre = 1,000 ml = 1 dm cubed. 1 m cubed = 1,000 litres. 1 US gallon = 3.785 litres. 1 barrel (oil) = 159 litres.
Step-by-Step Guide
How to use the volume converter step by step: 1. Choose the source unit – liters (l), milliliters (ml), cubic meters (m3), cubic centimeters (cm3), US gallon, imperial gallon, pint, barrel. 2. Enter a value – the calculator converts it into all available units. 3. Metric relationships: 1 liter = 1,000 ml = 1 dm3. 1 m3 = 1,000 liters. 1 cm3 = 1 ml. 4. Distinguish US and imperial units: 1 US gallon = 3.785 l, but 1 imperial gallon = 4.546 l. 1 US pint = 473 ml, 1 imperial pint = 568 ml. 5. Special units: 1 barrel (crude oil) = 158.987 l = about 42 US gallons. 6. Common uses: calculating aquarium size (60x30x30 cm = 54 liters), converting tank capacity (15 gallons = 56.8 liters), adapting cooking recipes from the USA (1 cup = 236.6 ml). Tip: the volume of a rectangular box = length x width x height in cm, divided by 1,000 gives liters.
Calculation Example
10 US gallons in litres: 10 * 3.785 = 37.85 l. Aquarium 80x35x40 cm: (80*35*40) / 1,000 = 112 litres.
Sources
Official sources
Calculations are based on applicable German laws and official data:
Full methodology at Methodology.
Reviewed by Konstantin Iakovlev · Last updated:
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