Excel VBA UBound Function: The UBound function in VBA returns the highest subscript for the specified dimension in the given array.

Syntax

UBound (ArrayName, [Dimension])

Parameter

ArrayName (required) – This parameter represents an array for which you want to find the highest subscript.

Dimension (optional) – This parameter specifies the dimension of the array, for which you require the highest subscript. By default, this parameter is set to 1.

Return

This function returns the highest subscript for the specified dimension in the given array.

Example 1

Sub UBoundFunction_Example() ' Returning the highest subscript for a 1-D array.
 Dim Array_Val(0 To 9) As Integer
 Dim UB_val As Integer
 UB_val = UBound(Array_Val)
 ' The integer UB_val will return a value equal to 10. 
 Cells(1, 1).Value = UB_val
 End Sub

Output

Example 2

Sub UBoundFunction_Example2()
 ' Returning the highest subscript for a 2-D array.
 Dim Array_val(0 To 10, 0 To 20) As Double
 Dim UB_val1 As Double
 Dim UB_val2 As Double
 UB_val1 = UBound(Array_val, 1)
 UB_val2 = UBound(Array_val, 2)
 ' The integer UB_val1 will return a value equal to 10. 
 Cells(1, 1).Value = UB_val1
 ' The integer UB_val2 will return a value equal to 10.
 Cells(2, 1).Value = UB_val2
 End Sub

Output