**Average apartment water consumption**

*If average consumption is low, the potential for savings is lower*

Fig. 1 Average apartment water consumption. |

The figure above is based on the following formula (Gram-Hanssen 2005):

Annual water consumption = 33 cubic meters + (no. of people * 21 cubic meters/person)

Example: no. of people = 2 Annual water consumption (cbm) = 33 + (2 * 21) = 33 + 42 = 75

At times it may be simpler to use the formula rather than reading the graphs.

Note that the estimates are rough due to the presence of significant uncertainty.