Editing Module:Convert/documentation/conversion data (section)

== Automatic per units ==
The following table defines equivalent unit types for some of the types that can be generated automatically for unit codes of the form <code>''x''/''y''</code> (''x'' per ''y''). For example, the unit code <code>kg/hl</code> is not defined, so if it were used, it would be regarded as kilograms per hectolitre with unit type mass/volume; the following table would translate that to density so the unit could be converted with other density units. If "Density" is specified in the Link column, the unit name or symbol would be linked to [[Density]] if {{para|lk|on}} is used.

In addition, a scale multiplier can be specified; that allows mass/area units to be converted to pressure units on the assumption that the mass refers to the force due to the "weight" of an object.

{| class="wikitable" style="text-align: center;"
!Type/type !!Equivalent unit type !!Link !!Multiplier
|-
| /area || per unit area ||
|-
| /volume || per unit volume ||
|-
| area/area || area per unit area ||
|-
| energy/length || energy per unit length ||
|-
| energy/mass || energy per unit mass ||
|-
| energy/time || power || Power (physics)
|-
| energy/volume || energy per unit volume ||
|-
| force/area || pressure || Pressure
|-
| length/length || gradient || Grade (slope)
|-
| length/time || speed || Speed
|-
| length/time/time || acceleration || Acceleration
|-
| mass/area || pressure || || 9.80665
|-
| mass/length || linear density ||
|-
| mass/mass || concentration ||
|-
| mass/power || mass per unit power ||
|-
| mass/time || mass per unit time ||
|-
| mass/volume || density || Density
|-
| power/mass || power per unit mass ||
|-
| power/volume || || Power density
|-
| pressure/length || fracture gradient ||
|-
| speed/time || acceleration || Acceleration
|-
| volume/area || volume per unit area ||
|-
| volume/length || volume per unit length ||
|-
| volume/time || flow ||
|}