With this SUBTOTAL function which ignores rows that have been excluded by a filter, you can easily add up only the visible cells. You can do as this:

Supposing you have a range of data, and they have been filtered as you need, see screenshot:

1. In a blank cell, C13 for example, enter this formula: =Subtotal(109,C2:C12) (109 indicates when you sum the numbers, the hidden values will be ignored; C2:C12 is the range you will sum ignoring filtered rows.), and press the Enter key.

Note: This formula also can help you sum only the visible cells if there are hidden rows in your worksheet. However, this formula can't sum with ignoring cells in hidden columns.

Sum/Count/Average visible cells only in a specified range with ignoring hidden or filtered cells/rows/columns

The normally SUM/Count/Average function will count all cells in the specified range on matter cells are hidden/filtered or not. While the Subtotal function can only sum/count/average with ignoring hidden rows. However, Kutools for Excel SUMVISIBLE / COUNTVISIBLE / AVERAGEVISIBLE functions will easily calculate the specified range with ignoring any hidden cells, rows, or columns.

If you are interested in the following code, it also can help you to sum only the visible cells.

1. Hold down the ALT + F11 keys, and it opens the Microsoft Visual Basic for Applications window.

2. Click Insert > Module, and paste the following code in the Module window.

Function SumVisible(WorkRng As Range) As Double
'Update 20130907
Dim rng As Range
Dim total As Double
For Each rng In WorkRng
    If rng.Rows.Hidden = False And rng.Columns.Hidden = False Then
        total = total + rng.Value
    End If
Next
SumVisible = total
End Function

3. Save this code and enter the formula =SumVisible(C2:C12) into a blank cell. See screenshot:

4. Then press Enter key and you will get the result that you want.

If you have Kutools for Excel installed, you can quickly calculate the sum/count/average only visible or filtered out cells in Excel easily.

For example you want to sum only visible cells only, please select the cell you will place the summing result at, type the formula =SUMVISIBLE(C3:C12) (C3:C13 is the range where you will sum only visible cells) into it, and press the Enter key.

And then the summing result is calculated with ignoring all hidden cells. See screenshot:

For counting only visible cells, please apply this formula =COUNTVISIBLE(C3:C12); For averaging only visible cells, please apply this formula =AVERAGEVISIBLE(C3:C12).

Note: If you can't remember the formulas exactly, you can following below steps to sum/count/average only visible cells easily:

1. Select the cell you will place the summing result into, and click Kutools > Functions > Statistical & Math > SUMVISIBLE (or AVERAGEVISBLE, COUNTVISIBLE as you need). See screenshot:

2. In the opening Function Arguments dialog box, please specify the range where you will sum ignoring hidden cells, and click the OK button. See screenshot:

And then the summing result is calculated with ignoring all hidden cells.

Easily sum/count only filtered out/visible cells by deleting hidden rows in Excel

When summing/counting filtered out cells in Excel, the SUM function or Count function will not ignore hidden cells. If hidden/filtered rows are removed, we can only sum or count visible cells easily. You can try Kutools for Excel's Delete Hidden (Visible) Rows & Columns utility to solve it.

How to sum the absolute values in Excel?

How to quickly sum every other or nth row/column in Excel?