Volume Converter
Convert volume units. Liters, milliliters, cubic meters, gallons and barrels. Convert quickly, accurately and free online with all units.
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 precise is the conversion?
Conversion factors are based on official SI units or internationally accepted standards. Precision is at least four decimal places — sufficient for everyday, professional and academic use.
Guide
Quick Answer
The volume converter converts between litre, millilitre, cubic metre, cubic centimetre, gallon, pint, barrel and other units.
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-Gallonen in Liter: 10 * 3,785 = 37,85 l. Aquarium 80x35x40 cm: (80*35*40) / 1.000 = 112 Liter.
Sources · E-E-A-T
Official sources
Calculations are based on applicable German laws and official data:
Full methodology at Methodology.
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