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CommonUnits
converts quantity1 through quantityn to common units across compatible dimensions.
Details

- CommonUnits will convert the input list's units to a common unit for each subset of input units with common dimensions.
- CommonUnits uses heuristic methods to determine a unit that best fits the input data.
- Operations involving currency units require internet connectivity.
Examples
open allclose allBasic Examples (2)Summary of the most common use cases
Convert a list of lengths to a common unit:

https://wolfram.com/xid/0h2jppm1us-bfx0e1

Convert all units of length and mass to a common unit:

https://wolfram.com/xid/0h2jppm1us-v1l3ad

Scope (4)Survey of the scope of standard use cases
Use CommonUnits with a list of Quantity objects:

https://wolfram.com/xid/0h2jppm1us-bxlv0z


https://wolfram.com/xid/0h2jppm1us-efn935

Use CommonUnits with a QuantityArray object:

https://wolfram.com/xid/0h2jppm1us-bu3c4x


https://wolfram.com/xid/0h2jppm1us-kmxud

CommonUnits can convert quantities with IndependentUnit specifications:

https://wolfram.com/xid/0h2jppm1us-cpx8mq


https://wolfram.com/xid/0h2jppm1us-woxtq


https://wolfram.com/xid/0h2jppm1us-crm92e

CommonUnits can convert mixed quantities:

https://wolfram.com/xid/0h2jppm1us-cxrmld


https://wolfram.com/xid/0h2jppm1us-hir06


https://wolfram.com/xid/0h2jppm1us-kyadpi

Properties & Relations (3)Properties of the function, and connections to other functions
CommonUnits converts quantities sharing the same UnitDimensions:

https://wolfram.com/xid/0h2jppm1us-iu5yek


https://wolfram.com/xid/0h2jppm1us-e5bko5

CommonUnits acts on subsets of quantities sharing the same UnitDimensions:

https://wolfram.com/xid/0h2jppm1us-efbpjg


https://wolfram.com/xid/0h2jppm1us-ldqlys

CommonUnits converts quantities with dimensionless units to pure numbers:

https://wolfram.com/xid/0h2jppm1us-kpthv9


https://wolfram.com/xid/0h2jppm1us-u6kz5t

Wolfram Research (2012), CommonUnits, Wolfram Language function, https://reference.wolfram.com/language/ref/CommonUnits.html.
Text
Wolfram Research (2012), CommonUnits, Wolfram Language function, https://reference.wolfram.com/language/ref/CommonUnits.html.
Wolfram Research (2012), CommonUnits, Wolfram Language function, https://reference.wolfram.com/language/ref/CommonUnits.html.
CMS
Wolfram Language. 2012. "CommonUnits." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/CommonUnits.html.
Wolfram Language. 2012. "CommonUnits." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/CommonUnits.html.
APA
Wolfram Language. (2012). CommonUnits. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/CommonUnits.html
Wolfram Language. (2012). CommonUnits. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/CommonUnits.html
BibTeX
@misc{reference.wolfram_2025_commonunits, author="Wolfram Research", title="{CommonUnits}", year="2012", howpublished="\url{https://reference.wolfram.com/language/ref/CommonUnits.html}", note=[Accessed: 26-March-2025
]}
BibLaTeX
@online{reference.wolfram_2025_commonunits, organization={Wolfram Research}, title={CommonUnits}, year={2012}, url={https://reference.wolfram.com/language/ref/CommonUnits.html}, note=[Accessed: 26-March-2025
]}