ConvUnit {DescTools} R Documentation

## Unit Conversion and Metrix Prefixes

### Description

Converts a numerical vector from one measurement system to another. Metric prefixes (as unit prefixes that precede a basic unit of measure to indicate a multiple or fraction of the unit) are respected.

### Usage

CmToPts(x)
PtsToCm(x)

ConvUnit(x, from, to)

data(d.units)
data(d.prefix)



### Arguments

 x the numeric to be converted. from a character defining the original unit. to a character defining the target unit.

### Details

The two functions CmToPts() and PtsToCm() convert centimeters to points and vice versa. 1 cm corresponds to 28.35 points.

The units as defined by the International System of Units (SI) (m, g, s, A, K, mol, cd, Hz, rad, sr, N, Pa, J, W, C, V, F, Ohm, S, Wb, T, H, lm, lx, Bq, Gy, Sv, kat, l) can be used to convert between different prefixes. The following non SI-units can be chosen for conversion between different systems. NA will be returned if a conversion can't be found.
The function is using the conversion factors stored in the dataset d.units.

 Weight and mass Gram g metric Pound mass (avoirdupois) lb Ounce mass (avoirdupois) oz Metric ton ton (or tn) Distance Meter m metric Statute mile mi Nautical mile nmi Inch in Foot ft Yard yd Angstrom AA (accepted) metric Astronomical unit au Time Year a Day d Hour h Minute min Second s Pressure Pascal Pa Atmosphere atm mm of Mercury mmHg bar bar Pound-force per quare inch psi Energy Joule J metric IT calorie cal (accepted) metric Electron volt eV (or ev) Power Horsepower (mechanical) hp Horsepower (metric) HP Watt W (or w) metric Temperature Degree Celsius C Degree Fahrenheit F Kelvin K metric Liquid measure Fluid ounce fl oz Gallon gal Liter l (or lt) (accepted) metric

Additional details can be found in the d.units data.frame.

### Author(s)

Andri Signorell <andri@signorell.net>

### Examples

ConvUnit(c(1.2, 5.4, 6.7), "in", "m")

# from kilometers to pico meters
ConvUnit(1, from="km", to="pm")

# from miles to kilometers
ConvUnit(1, from="mi", to="km")
# nautical miles
ConvUnit(1, from="nmi", to="km")
# from kilo Kelvin to Fahrenheit
ConvUnit(10, from="kK", to="F")
# from metric to more quirky units
ConvUnit(c(10, 1), from="hl", to="gal")
ConvUnit(500, from="ml", to="fl oz")

# conversion between non-SI units
ConvUnit(1000, "yd", "mi")
# ... must be the same as
ConvUnit(ConvUnit(1000, "yd", "m"), "m", "mi")


[Package DescTools version 0.99.51 Index]