Tools for Units of Measurement

Collection of tools to make working with physical measurements easier. Convert between metric and imperial units, or calculate a dimension's unknown value from other dimensions' measurements.


version 1.3.0, 2018-12-09

  • conv_unit(): added "pmol" and "fmol" as count unit options
  • conv_unit(): added "Da" (Dalton), "Tg", "Gg", "Mg", ng", "pg", and "fg" as mass unit options

version 1.2.0, 2018-03-21

  • conv_unit(): added "cmH2O" and "inH2O" as pressure unit options
  • conv_unit(): added "km_per_hr" and "mi_per_hr" as synonyms for "kph" and "mph", respectively
  • conv_unit(): fixed an issue where NAs in coordinates caused incorrect conversions

version 1.1.0, 2016-10-28

  • conv_multiunit(): new function

version 1.0.0, 2016-07-26

  • conv_dim(): new function
  • conv_unit(): new function

Reference manual

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1.4.0 by Matthew A. Birk, 3 years ago

Browse source code at

Authors: Matthew A. Birk

Documentation:   PDF Manual  

Task views: Chemometrics and Computational Physics

GPL-3 license

Imported by OasisR, SUNGEO, basifoR, chunkhooks, presens, respirometry.

Suggested by fgeo.analyze, units.

See at CRAN