TRUNC - Excel - Microsoft Office Online

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TRUNC

Applies to: Microsoft Office Excel 2003

Truncates a number to an integer by removing the fractional part of the number.

Syntax

TRUNC(number,num_digits)

Number is the number you want to truncate.

Num_digits is a number specifying the precision of the truncation. The default value for num_digits is 0 (zero).

Remark

TRUNC and INT are similar in that both return integers. TRUNC removes the fractional part of the number. INT rounds numbers down to the nearest integer based on the value of the fractional part of the number. INT and TRUNC are different only when using negative numbers: TRUNC(-4.3) returns -4, but INT(-4.3) returns -5 because -5 is the lower number.

Example

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

Show How to copy an example

Create a blank workbook or worksheet.
Select the example in the Help topic.
Note Do not select the row or column headers.

Selecting an example from Help
Press CTRL+C.
In the worksheet, select cell A1, and press CTRL+V.
To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.

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A	B
Formula	Description (Result)
=TRUNC(8.9)	Integer part of 8.9 (8)
=TRUNC(-8.9)	Integer part of -8.9 (-8)
=TRUNC(PI())	Integer part of pi (3)