There are many different ways to enter, adjust and convert field units.
Field values can be set using any of the following methods:
Upon entering a field value using measurement units that do not match those used by the field, this will automatically be recalculated and converted to the unit type used in the field. For example, entering a value of 9 cm to a field that uses mm will result in a value of 90 mm.
You can use the mouse wheel to change a field's input value.