Suppose you want to calculate a price total for the inventory of a store or the total gross profit margins for all departments that are under budget for the year. There are several ways to add numbers.

## Add numbers in a cell

Use the + (plus sign) arithmetic operator in a formula.

For example, if you type the following formula in a cell:

=5+10

The cell displays the following result:

15

## Add all contiguous numbers in a row or column

If you have a range of contiguous numbers (that is, there are no blank cells), you can use the AutoSum button.

1. Click a cell below the column of numbers or to the right of the row of numbers.

2. On the Home tab, in the Editing group, click AutoSum , and then press ENTER.

## Add noncontiguous numbers

If you have a range of numbers that might include blank cells or cells containing text instead of numbers, use the SUM function in a formula. Even though they might be included in the range that is used in the formula, any blank cells and cells that contain text are ignored.

### Example

The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

1. Create a blank workbook or worksheet.

2. Select the example in the Help topic.

Note    Do not select the row or column headers.

Selecting an example from Help

3. Press CTRL+C.

4. In the worksheet, select cell A1, and press CTRL+V.

5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

 1 2 3 4 5 6 7
 A B Salesperson Invoice Buchanan 15,000 Buchanan 9,000 Suyama 8,000 Suyama 20,000 Buchanan 5,000 Dodsworth 22,500 Formula Description (Result) =SUM(B2:B3,B5) Adds two invoices from Buchanan, and one from Suyama (44,000) =SUM(B2,B5,B7) Adds individual invoices from Buchanan, Suyama, and Dodsworth (57,500)

Note:  The SUM function can include any combination of up to 30 cell or range references. For example, the formula =SUM(B2:B3,B5) contains one range reference (B2:B3) and one cell (B5).

## Add numbers based on one condition

You can use the SUMIF function to create a total value for one range based on a value in another range. In the following example, you want to create a total only for the values in column B (Invoice) that correspond to values in column A (Salesperson) for the salesperson named Buchanan.

### Example

The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

1. Create a blank workbook or worksheet.

2. Select the example in the Help topic.

Note    Do not select the row or column headers.

Selecting an example from Help

3. Press CTRL+C.

4. In the worksheet, select cell A1, and press CTRL+V.

5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

 1 2 3 4 5 6 7
 A B Salesperson Invoice Buchanan 15,000 Buchanan 9,000 Suyama 8,000 Suyama 20,000 Buchanan 5,000 Dodsworth 22,500 Formula Description (Result) =SUMIF(A2:A7,"Buchanan",B2:B7) Sum of invoices for Buchanan (29000) =SUMIF(B2:B7,">=9000",B2:B7) Sum of large invoices greater than or equal to 9,000 (66500) =SUMIF(B2:B7,"<9000",B2:B7) Sum of small invoices less than 9,000 (13000)

The SUMIF function uses the following arguments

Formula with SUMIF function

1. Range to evaluate: Check these cells to determine whether a row meets your criteria.

2. Criteria: The condition that the cells you evaluate must meet for the row to be included in the sum.

3. Range to sum: Add the numbers in these cells provided that the row satisfies the condition.

## Add numbers based on multiple conditions

To do this task, use the SUMIFS function.

### Example

The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

1. Create a blank workbook or worksheet.

2. Select the example in the Help topic.

Note    Do not select the row or column headers.

Selecting an example from Help

3. Press CTRL+C.

4. In the worksheet, select cell A1, and press CTRL+V.

5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

 1 2 3 4 5 6 7 8 9 10 11
 A B C D Region Salesperson Type Sales South Buchanan Beverages 3571 West Davolio Dairy 3338 East Suyama Beverages 5122 North Suyama Dairy 6239 South Dodsworth Produce 8677 South Davolio Meat 450 South Davolio Meat 7673 East Suyama Produce 664 North Davolio Produce 1500 South Dodsworth Meat 6596 Formula Description (Result) =SUMIFS(D2:D11,A2:A11,"South",C2:C11,"Meat") Sum of Meat sales in the South region (14719) =SUM(IF((A2:A11="South")+(A2:A11="East"),D2:D11)) Sum of sales where the region is South or East (32753)

Note: The second formula in the example must be entered as an array formula. After copying the example to a blank worksheet, select the formula cell. Press F2, and then press CTRL+SHIFT+ENTER. If the formula is not entered as an array formula, the error #VALUE! is returned.

### How the functions are used in the preceding example

=SUMIFS(D2:D11,A2:A11,"South",C2:C11,"Meat")

The SUMIFS function is used in the first formula to find rows in which "South" is in column A and "Meat" is in column C. There are three cases of this; in rows 7, 8, and 11. The function first looks at column A, which contains the regions, to find a match for “South.” It then looks at column C, which contains the food type, to find a match for “Meat.” Finally, the function looks in the range that contains the values to sum, D2:D11, and sums only the values in that column that meet those two conditions.

=SUM(IF((A2:A11="South")+(A2:A11="East"),D2:D11))

The second formula, which uses the SUM and the IF functions, is entered as an array formula (by pressing CTRL+SHIFT+ENTER) to find rows in which either one or both of "South" or "East" is in column A. There are seven cases of this; in rows 2, 4, 6, 7, 8, 9, and 11. Because this formula is an array formula, the + operator isn't used to add values; it is used to check for two or more conditions, at least one of which must be met. Then, the SUM function is used to add the values that meet these criteria.

## Add numbers based on criteria stored in a separate range

To do this task, use the DSUM function.

### Example

The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

1. Create a blank workbook or worksheet.

2. Select the example in the Help topic.

Note    Do not select the row or column headers.

Selecting an example from Help

3. Press CTRL+C.

4. In the worksheet, select cell A1, and press CTRL+V.

5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

 1 2 3 4 5 6 7 8 9 10 11
 A B C D Region Salesperson Type Sales South Buchanan Beverages 3571 West Davolio Dairy 3338 East Suyama Beverages 5122 North Suyama Dairy 6239 South Dodsworth Produce 8677 South Davolio Meat 450 South Davolio Meat 7673 East Suyama Produce 664 North Davolio Produce 1500 South Dodsworth Meat 6596 Region Salesperson Type Sales South Meat Produce Formula Description (Result) =DSUM(A1:D11, "Sales", A12:D13) Sum of Meat sales in the South region (14719) =DSUM(A1:D11, "Sales", A12:D14) Sum of Meat and Produce sales in the South region (25560)

The DSUM function uses the following arguments.

1. Range to evaluate: The list from which you want to sum.

2. Field: The label of the column to sum.

3. Criteria: The range of cells that contains the conditions.

## What happened to the Conditional Sum Wizard?

This add-in is no longer included with Excel 2010. In earlier versions of Excel, you could use the Conditional Sum Wizard to help you write formulas that calculate the sums of values that met specified conditions. This functionality has been replaced by the Insert Function dialog box (Formulas tab, Function Library group) and other existing worksheet functions, such as SUMIFS and using a combination of SUM and IF together in a formula. For more information about using these functions to conditionally sum columns or rows of data, see the section Add numbers based on multiple conditions, earlier in this article.

## Add only unique values

To do this task, use the SUM, IF, and FREQUENCY functions.

The following example uses the:

• FREQUENCY function to identify the unique values in a range. For the first occurrence of a specific value, this function returns a number equal to the number of occurrences of that value. For each occurrence of that same value after the first, this function returns a 0 (zero).

• IF function to assign a value of 1 to each true condition.

• SUM function to add the unique values.

Tip    To see a function evaluated step by step, select the cell containing the formula, and then on the Formulas tab, in the Formula Auditing group, click Evaluate Formula.

### Example

The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

1. Create a blank workbook or worksheet.

2. Select the example in the Help topic.

Note    Do not select the row or column headers.

Selecting an example from Help

3. Press CTRL+C.

4. In the worksheet, select cell A1, and press CTRL+V.

5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

 1 2 3 4 5 6 7 8 9 10
 A Data 986 456 67 1 34 689 456 56 67 Formula Description (Result) =SUM(IF(FREQUENCY(A2:A10,A2:A10)>0,A2:A10)) Add the unique values in cells A2:A10 (2289)
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