13.3 Conversion functions

If you want to know the value of a PyX length in certain units, you may use the predefined conversion functions which are given in the following table

function	result
`tom(l)`	`l` in units of m
`tocm(l)`	`l` in units of cm
`tomm(l)`	`l` in units of mm
`toinch(l)`	`l` in units of inch
`topt(l)`	`l` in units of points

If l is not yet a length instance but a number, it first is interpreted as a user length in the default units.