Convert a number from one measurement system to another. The function can translate a table of distances in miles to a table of distances in kilometers.
The following units can be chosen. Conversions will work with units within the group. NA wil be returned if a conversion can't be found.
The multipliers can be found in the dataset d.units.
lll{
Weight and mass
Gram g metric
Slug sg
Pound mass (avoirdupois) lbm
U (atomic mass unit) u
Ounce mass (avoirdupois) ozm
Distance
Meter m metric
Statute mile mi
Nautical mile Nmi
Inch in
Foot ft
Yard yd
Angstrom ang metric
Pica pica
Time
Year yr
Day day
Hour hr
Minute mn
Second sec
Pressure
Pascal Pa (or p)
Atmosphere atm (or at)
mm of Mercury mmHg
Force
Newton N metric
Dyne dyn (or dy)
Pound force lbf
Energy
Joule J metric
Erg e
Thermodynamic calorie c
IT calorie cal metric
Electron volt eV (or ev) metric
Horsepower-hour HPh (or hh)
Watt-hour Wh (or wh) metric
Foot-pound flb
BTU BTU (or btu)
Power
Horsepower HP (or h)
Watt W (or w) metric
Magnetism
Tesla T metric
Gauss ga metric
Temperature
Degree Celsius C (or cel)
Degree Fahrenheit F (or fah)
Kelvin K (or kel) metric
Liquid measure
Teaspoon tsp
Tablespoon tbs
Fluid ounce oz
Cup cup
U.S. pint pt (or us_pt)
U.K. pint uk_pt
Quart qt
Gallon gal
Liter l (or lt) metric
}
All the details can be found in the d.units data.frame.