# Units of volume

**The unit of volume** is **cubic metres (m³)** in the SI (metric) system. Other commonly used units of volume include litres (L), millilitres (mL), and gallons (gal) in different systems of measurement.

**Volume** is the amount of space in a certain 3D object. For instance, a fish tank has 4 feet in length, 1 foot in width and two feet in height. To find the volume, you **multiply length times width times height**, which is 4x1x2, which equals eight. So the volume of the fish tank is 8 cubic feet.

**Metric Units – Volume**

1000 cubic millimetres, mm^{3}= 1 cubic centimetre, cm^{3}

1000 cubic centimetres, cm^{3} = 1 cubic decimetre, dm^{3}

1 000 cubic decimetres, cm^{3} = 1 cubic metre, m^{3}

1,000,000 cubic centimetres, cm^{3}= 1 cubic metre, m^{3}1 litre, l = 1 cubic decimetre, dm^{3}1 milliliter, ml = 1 cubic centimetres, cm^{3}

1 deciliter, dl = 100 ml

1 liter, l = 1 000 milliliters, ml

1 m^{3} = 1 000 liters

https://www.transum.org/Maths/Activity/Units/Default.asp?Level=3