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Microsoft: Access Other topics FAQ

VBA and Custom Functions

Rounding functions by Craig0201
Posted: 4 Dec 01

A pair of rounding functions.  Work identically to those in Excel.

Function Round(Number As Double, Num_Digits As Integer) As Double

'Set up variables
Dim dblNumNum_Digits As Double
Dim intNumNum_Digits As Integer

'Move decimal point such that int will perform at correct level
dblNumNum_Digits = Number * (10 ^ Num_Digits)

intNumNum_Digits = Int(dblNumNum_Digits)

'Compare integer to see if needs rounding up
If dblNumNum_Digits - intNumNum_Digits >= 0.5 Then
    'round up
    intNumNum_Digits = intNumNum_Digits + 1
    'round down
    intNumNum_Digits = intNumNum_Digits
End If

'Return result, moving decimal point back
Round = intNumNum_Digits / (10 ^ Num_Digits)

End Function

Function MRound(Number As Double, Multiple As Double) As Double

'Set up variables
Dim dblDivided As Double
Dim dblIntDivided As Double

dblDivided = Number / Multiple
dblIntDivided = Int(dblDivided)

'Round dblDivided to nearest whole number in intDivided
dblIntDivided = dblIntDivided + Round(dblDivided - dblIntDivided, 0)

'Return result, returning to nearest multiple
MRound = dblIntDivided * Multiple

End Function

Hope they help!


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