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$UnitSystem
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$UnitSystem

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gives the unit system to assume for returned quantities.

Details

  • $UnitSystem is set at the beginning of your Wolfram System session to the unit system specified by the geodetic location of your computer.
  • Possible values are "Imperial" and "Metric".

Examples

Basic Examples  (1)Summary of the most common use cases

Find the default unit system:

In[1]:=1
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https://wolfram.com/xid/0h2wadle26-4cggz6
Out[1]=1
Wolfram Research (2014), $UnitSystem, Wolfram Language function, https://reference.wolfram.com/language/ref/$UnitSystem.html.
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Wolfram Research (2014), $UnitSystem, Wolfram Language function, https://reference.wolfram.com/language/ref/$UnitSystem.html.

Text

Wolfram Research (2014), $UnitSystem, Wolfram Language function, https://reference.wolfram.com/language/ref/$UnitSystem.html.

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Wolfram Research (2014), $UnitSystem, Wolfram Language function, https://reference.wolfram.com/language/ref/$UnitSystem.html.

CMS

Wolfram Language. 2014. "$UnitSystem." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$UnitSystem.html.

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Wolfram Language. 2014. "$UnitSystem." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$UnitSystem.html.

APA

Wolfram Language. (2014). $UnitSystem. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$UnitSystem.html

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Wolfram Language. (2014). $UnitSystem. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$UnitSystem.html

BibTeX

@misc{reference.wolfram_2025_$unitsystem, author="Wolfram Research", title="{$UnitSystem}", year="2014", howpublished="\url{https://reference.wolfram.com/language/ref/$UnitSystem.html}", note=[Accessed: 25-March-2025 ]}

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@misc{reference.wolfram_2025_$unitsystem, author="Wolfram Research", title="{$UnitSystem}", year="2014", howpublished="\url{https://reference.wolfram.com/language/ref/$UnitSystem.html}", note=[Accessed: 25-March-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_$unitsystem, organization={Wolfram Research}, title={$UnitSystem}, year={2014}, url={https://reference.wolfram.com/language/ref/$UnitSystem.html}, note=[Accessed: 25-March-2025 ]}

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@online{reference.wolfram_2025_$unitsystem, organization={Wolfram Research}, title={$UnitSystem}, year={2014}, url={https://reference.wolfram.com/language/ref/$UnitSystem.html}, note=[Accessed: 25-March-2025 ]}