Editing Weight

{{Quality|Unrated}}{{av}}

'''Weight''', or sometimes more correctly termed '''mass''', is an item property, and is measured in the unit ''Γ'', also sometimes known as ''urists'', or more commonly as the ''kilogram'', its equivalent real-life unit.

Weight is largely used by the game to determine how fast someone or something should move, due to encumbrance effects and carry weight restrictions; to calculate damage, since object mass factors into impact momentum; and to some extent to make temperature calculations, as mass factors into heat capacity. Note that, for DF, weight and mass are currently indistinguishable because, as it stands, DF gravity is [http://www.bay12games.com/media/df_talk_8_transcript.html uniform both across the whole universe and from world to world] and buoyancy isn't implemented.

Weight is displayed as a quantity associated with an item. Weight calculation is not entirely straightforward, since each item category &mdash; or sometimes even individual items &mdash; have their own formula for determining weight.
 
==Weight Calculation==

The general form for calculating weight in DF is to take the material [[density]] (as found in the raws) multiplied by the item's volume.

:Weight (in Γ) = Density (in kg/m<sup>3</sup>) * Volume (in cm<sup>3</sup>) / 1,000,000 (cm<sup>3</sup>/m<sup>3</sup>)

Internally, all custom volume/capacity numbers are rounded ''down'' to the nearest multiple of 10 - thus, if you define a tool with [SIZE:15], it will actually behave as if you had specified [SIZE:10].

An item's volume is also used to determine workshop [[clutter]] as well as how many items can fit into a container.

== Assorted item weights ==
Weight displayed in-game is rounded down to a whole number.
{| {{prettytable}} class="sortable"
|- bgcolor="#999999"
! Item
! Weight in Γ(kg)
! Notes

|-
| [[Iron]] [[anvil]]
| style=text-align:right | 78.500
| Same as a steel anvil.

|-
| [[Aluminum]] [[bar]]
| style=text-align:right | 16.200
| Least dense normal metal.

|-
| [[Steel]] bar
| style=text-align:right | 47.100
| Same as an iron or pig iron bar.

|-
| [[Platinum]] bar
| style=text-align:right | 128.400
| Most dense metal.

|-
| [[Feather]] ([[wood]]) [[barrel]]
| style=text-align:right | 2.000
| Least dense wood, found only in good biomes.

|-
| [[Willow]] barrel
| style=text-align:right | 7.800
| Least dense common wood, found near water in many biomes.

|-
| [[Tunnel tube]] barrel
| style=text-align:right | 10.000
| Least dense cavern wood, found only in lower caverns.

|-
| [[Tower cap]] barrel
| style=text-align:right | 12.000
| Same as a barrel of acacia, ash, fungiwood, goblin-cap, mahogany, pear, or spore [[wood]].

|-
| [[Blood thorn]] barrel
| style=text-align:right | 25.000
| Most dense wood, found only in lowest caverns.

|-
| [[Jet]] [[block]]
| style=text-align:right | 7.920
| Least dense non-economic stone.

|-
| [[Shale]] block
| style=text-align:right | 13.500
|

|-
| [[Cinnabar]] block
| style=text-align:right | 48.600
| Most dense non-economic stone.

|-
| [[Sheep]] [[cheese]]
| style=text-align:right | 1.200
| All cheeses seem to use the default density of 1200 kg/m<sup>3</sup>.

|-
| Willow [[large pot]]
| style=text-align:right | 1.950
| Least dense common wood, found near water in many biomes.

|-
| Tower cap large pot
| style=text-align:right | 3.000
| Same as a large pot of acacia, ash, fungiwood, goblin-cap, mahogany, pear, or spore [[wood]].

|-
| Blood thorn large pot
| style=text-align:right | 6.250
| Most dense wood, found only in lowest caverns.

|-
| Jet large pot
| style=text-align:right | 6.600
| Least dense non-economic stone.

|-
| [[Earthenware]] large pot
| style=text-align:right | 6.800
| Must be glazed to hold liquids (or maybe any food).

|-
| [[Stoneware]] large pot
| style=text-align:right | 10.000
| Does not need glazing.

|-
| Shale large pot
| style=text-align:right | 11.250
|

|-
| [[Porcelain]] large pot
| style=text-align:right | 12.015
| Not an unlimited resource like other ceramics.

|-
| Glass large pot
| style=text-align:right | 13.000
| All three types of glass have the same density.

|-
| Cinnabar large pot
| style=text-align:right | 40.500
| Most dense non-economic stone.

|-
| Feather [[log]]
| style=text-align:right | 5.000
| Least dense wood, found only in good biomes.

|-
| Willow log
| style=text-align:right | 19.500
| Least dense common wood, found near water in many biomes.

|-
| Tunnel tube log
| style=text-align:right | 25.000
| Least dense cavern wood, found only in lower caverns.

|-
| Tower cap log
| style=text-align:right | 30.000
| Same as a log of acacia, ash, fungiwood, goblin-cap, mahogany, pear, or spore [[wood]].

|-
| Blood thorn log
| style=text-align:right | 62.500
| Most dense wood, found only in lowest caverns.

|-
| Jet [[stone]]
| style=text-align:right | 132.000
| Least dense non-economic stone.

|-
| Shale stone
| style=text-align:right | 225.000
|

|-
| Cinnabar stone
| style=text-align:right | 810.000
| Most dense non-economic stone.

|}

==See also==
* [[Density]]
* [[Size]]

{{Translation
| dwarven = âl
| elvish  = eba
| goblin  = deslo
| human   = ketas
}}

{{Category|Items}}
[[Ru:Weight]]