excel functions

MS Excel: ROUNDDOWN Function (WS)

This Excel tutorial explains how to use the Excel ROUNDDOWN function with syntax and examples.


The Microsoft Excel ROUNDDOWN function returns a number rounded down to a specified number of digits. (Always rounds towards 0.)


The syntax for the ROUNDDOWN function in Microsoft Excel is:

ROUNDDOWN( number, digits )

Parameters or Arguments

The number to round down.
The number of digits to round the number down to.

Applies To

The ROUNDDOWN function can be used in the following versions of Microsoft Excel:

  • Excel 2016, Excel 2013, Excel 2011 for Mac, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000

Type of Excel Function

The ROUNDDOWN function can be used in Microsoft Excel as the following type of function:

  • Worksheet function (WS)

Example (as Worksheet Function)

Let's look at some Excel ROUNDDOWN function examples and explore how to use the ROUNDDOWN function as a worksheet function in Microsoft Excel:

Microsoft Excel

Based on the Excel spreadsheet above, the following ROUNDDOWN examples would return:

Result: 662

Result: 662.7

Result: 50

=ROUNDDOWN(55.1, -1)
Result: 50

=ROUNDDOWN(-23.67, 1)
Result: -23.6