Template:Value in SI unit

Template documentation

Help:Partial query to convert a quantity with an arbitrary unit to its value in the relevant SI unit.

Usage edit

{{Value in SI unit|?Paris|area|ParisArea}}

 ?Paris                            p:P2046       ?ParisstatementP2046 .
 ?ParisstatementP2046 psv:P2046     ?ParisnodeP2046 .
 ?ParisnodeP2046      wikibase:quantityAmount  ?ParisareaP2046 .
 ?ParisnodeP2046      wikibase:quantityUnit    ?ParisunitP2046.
 ?ParisunitP2046     wdt:P2370                ?ParisP2046conversionSI . 
 BIND(?ParisareaP2046*?ParisP2046conversionSI AS ?ParisArea)

{{SPARQL|query=select ?ParisArea where { {{tl|Value in SI unit|?Paris|area|ParisArea}} . bind(wd:Q90 as ?Paris) . } }}

select ?ParisArea where { 
  ?Paris                            p:P2046       ?ParisstatementP2046 .
  ?ParisstatementP2046 psv:P2046     ?ParisnodeP2046 .
  ?ParisnodeP2046      wikibase:quantityAmount  ?ParisareaP2046 .
  ?ParisnodeP2046      wikibase:quantityUnit    ?ParisunitP2046.
  ?ParisunitP2046     wdt:P2370                ?ParisP2046conversionSI . 
  BIND(?ParisareaP2046*?ParisP2046conversionSI AS ?ParisArea) . bind(wd:Q90 as ?Paris) . }

Try it!

See also edit

For property/units not normalized, compute the conversion in the SI unit

Template parameters[Edit template data]
Parameter		Description	Type	Status
item	`1`	The subject item of the statement, either a variable or an item Qid Example Q91	Page name	required
property	`2`	A quantity valued property, Pid or english label Example area	Unknown	optional
value name	`3`	the name of the variable with the quantity expressed in SI unit	Unknown	optional

The above documentation is transcluded from Template:Value in SI unit/doc (edit | history).
Editors can experiment in this template's sandbox (create | mirror) and testcases (create) page.
Please add categories to the /doc subpage. Subpages of this template.

 ?item                            p:       ?item .
 ?item psv:     ?item .
 ?item      wikibase:quantityAmount  ?item .
 ?item      wikibase:quantityUnit    ?item.
 ?item     wdt:P2370                ?item . 
 BIND(?item*?item AS ?resultSI)