I'm trying to convert minutes to decimals i.E. 15 minutes

15) to .25
What's the datatype of your field containing minutes? If it's
Date/Time, bear in mind that this field type is best used for exact
points in time, rather than durations. If it *is* a date/time, note
that Access stores such values as a Double Float count of days and
fractions of a day; so you should be able to use
CDbl(TimeValue([your-field-name])) * 24.
TimeValue will discard any date portion of the time field, CDbl will
convert the value to a Double number (where 6:00:00 will convert to
..25, a quarter of a day) and multiplying that fraction by 24 will get
you hours.
John W. Vinson[MVP]