Editing GNU Units (section)

{{Infobox software
| name = GNU Units
| title = Units
| logo = Heckert GNU white.svg
| logo size = 125px
| screenshot = <!-- [[File: ]] -->
| caption = 
| collapsible = 
| author = 
| developer = [[GNU Project]]
| released = <!-- {{Start date|YYYY|MM|DD|df=yes/no}} -->
| discontinued = 
| latest release version = {{wikidata|property|preferred|references|edit|Q3093305|P348|P548=Q2804309}}
| latest release date = {{wikidata|qualifier|preferred|single|Q3093305|P348|P548=Q2804309|P577}}
| latest preview version = {{wikidata|property|preferred|references|edit|Q3093305|P348|P548=Q51930650}}
| latest preview date = {{wikidata|qualifier|preferred|single|Q3093305|P348|P548=Q51930650|P577}}
| repo = {{URL|http://web.cvs.savannah.gnu.org/viewvc/units/}}<!--Deliberately bypassing WikiData to avoid bug-->
| programming language = 
| operating system = [[Linux]], [[FreeBSD]], [[NetBSD]], [[OpenBSD]], most Unix implementations, [[Microsoft Windows|Windows]]
| platform = Included with some{{which|date=March 2017}} [[Linux distributions]]. Two Windows binary distributions are available; distribution for other platforms is source only.
| size = 1.2 Megabytes (tar source)
| language = 
| status = 
| genre = Utility
| license = 2007: [[GNU General Public License|GPL-3.0-or-later]]{{efn|GPL-3.0-or-later since 2007-09-26 (1.87)}}<br />1997: [[GNU General Public License|GPL-2.0-or-later]]{{efn|GPL-2.0-or-later from 1997-01-14 (1.53) until 2006-11-11 (1.86)}}
| website = 
}}
{{Portal|Free and open-source software}}
'''GNU Units''' is a [[cross-platform]] [[computer program]] for [[conversion of units]] of quantities. It has a database of [[Units of measurement|measurement units]], including [[List of strange units of measurement|esoteric]] and historical units. This for instance allows conversion of velocities specified in [[furlong]]s per [[fortnight]], and pressures specified in [[ton]]s per [[acre]]. Output units are checked for consistency with the input, allowing verification of conversion of complex expressions.