default_unit_mappings.md

Default unit mappings

When no output unit is specified, Sandpiper will try to convert to another related unit. Some units convert two ways (Celsius <-> Fahrenheit), and others map only one way for simplicity (Kelvin -> Celsius).

Two-way

The units in each row will convert to each other.

Length

Metric	Imperial
Kilometre km	Mile mi
Metre m	Foot ft or '
Centimetre cm	Inch in or "

Area

Metric	Imperial
Hectare ha	Acre acre

Speed

Metric	Imperial
Kilometre per hour kph or km/h	Mile per hour mph or mi/h

Mass

Metric	Imperial
Gram g	Ounce oz
Kilogram kg	Pound lb or lbs

Volume

Metric	Imperial
Litre L	Gallon (US) gal
Millilitre ml	Cup cup

Pressure

Metric	Imperial
Pascal pascal	Pound[-force] per square inch psi

Temperature

Metric	Imperial
Celsius C or degC or °C	Fahrenheit F or degF or °F

Energy

Metric	Imperial
Joule J	Foot pound ft_lb or foot_pound

Angle

Radian	Degree
Radian rad	Degree deg

One-way

Only the units on the left will map to the unit on the right.

Length

From	To
Yard yd	Metre m

Speed

From	To
Metre per second mps or m/s	Kilometre per hour kph or km/h
Foot per second ft/s	Mile per hour mph or mi/h

Mass

From	To
Stone stone	Kilogram kg

Volume

From	To
Pint (US) pint	Litre L
Fluid ounce (US) floz	Millilitre ml

Pressure

From	To
Atmosphere atm	Pound[-force] per square inch psi
Bar bar	Pound[-force] force per square inch psi

Temperature

From	To
Kelvin K	Celsius C or degC or °C

Time

From	To
Second s or sec	Minute min
Minute min	Hour h or hr
Hour h or hr	Day day
Day day	Week week