Volume, sole

Remaining capacity equals total capacity minus the amount already filled. Use the same units for both amounts. For example, a 12 l container holding 7 l can take 12 − 7 = 5 l more.

Rectangular prism volume is V = length × width × height. Express all three lengths in the same units. Lengths in centimetres give volume in cm³.

All cube edges are equal. Its volume is the edge length cubed: V = a × a × a = a³. An edge in centimetres gives volume in cm³.

1000 millilitres = 1 litre. Divide the millilitres by 1000. For example, 1500 ml = 1.5 l.

1 dm³ = 1 l. The numerical value stays the same: the number of cubic decimetres equals the number of litres.

Volume is measured in cubic units. A small box has dimensions conveniently measured in centimetres, so its volume is measured in cm³. cm measures length, cm² measures area and l/min measures flow rate.

Multiply the aquarium length, width and height to find its volume. Dimensions in decimetres give dm³. Since 1 dm³ = 1 l, the same number gives the water capacity in litres.

1000 millilitres = 1 litre. Divide the millilitres by 1000. For example, 1500 ml = 1.5 l.

1 dm³ = 1 l. The numerical value stays the same: the number of cubic decimetres equals the number of litres.

1 litre = 1000 millilitres. Multiply the litres by 1000. For example, 2.5 l = 2500 ml.