UDUNITS

UDUNITS UDUNITS supports conversion of unit specifications between formatted and binary forms, arithmetic manipulation of units, and conversion of values between compatible scales of measurement.

See the UDUNITS-2 package
UDUNITS News & Announcements
  • UDUNITS version 2.1.22 UDUNITS version 2.1.22
    April 5, 2011

    Version 2.1.22 of the UDUNITS package has just been released. This version is recommended for all users. The latest update can be downloaded at http://www.unidata.ucar.edu/downloads/udunits.

    Version 2.1.22 incorporates the following changes:

    • Corrected ut_compare(3) for Galilean units (e.g., "1.01 m" and "1.1 m").
    • Corrected access to units database from documentation for both installations and the online webpages.
    • Added shared library version numbers.

More UDUNITS news

Questions About UDUNITS?

Questions or comments about UDUNITS can be sent to: support-udunits@unidata.ucar.edu

UDUNITS-1

UDUNITS-1 UDUNITS-1 package documentation is available for those who still use this package version.

UDUNITS Documentation

Documentation UDUNITS software documentation contains a wealth of useful information. Note: Training for the UDUNITS package is not currently offered.

UDUNITS Download & Installation
  • Download Download the current and deprecated (UDUNITS-1) releases of UDUNITS.
  • Installation View the UDUNITS installation guide for package installation instructions.
  • UDUNITS-1 UDUNITS-1 package documentation is available for those who still use this package version.
UDUNITS Use
  • API The UDUNITS manual provides extensive documentation on the UDUNITS-2 package.
  • Known Problems Reference the UDUNITS C API Guide for documentation and package information.

Questions About UDUNITS Documentation?

Questions or comments about UDUNITS documentation can be sent to: support-udunits@unidata.ucar.edu

UDUNITS Help & Support

UDUNITS-Related Support Requests

Request Support To submit a UDUNITS-related support request, submit an email to one of the following addresses, or use the support request form to compose your queries.

Support Topic Email Address
(add @unidata.ucar.edu)
UDUNITS support-udunits

Complete list of all Unidata support queues

Ways to Get Support

UDUNITS Mailing Lists

Mailing Lists UDUNITS-related mailing lists of general interest for discussing installation issues and troubleshooting, as well as general software announcments and bug fixes, etc.

List Name List Description
udunits
@unidata.ucar.edu
Low list traffic 		A mailing list for users of the UDUNITS-2 and legacy UDUNITS packages. Questions about installation, use, and general support should be directed to this list. New UDUNITS releases will be announced on this mail list.
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