﻿ ROUNDDOWN function

# ROUNDDOWN function

This article describes the formula syntax and usage of the ROUNDDOWNfunction in Microsoft Excel.

## Description

Rounds a number down, toward zero.

## Syntax

ROUNDDOWN(number, num_digits)

The ROUNDDOWN function syntax has the following arguments:

• Number    Required. Any real number that you want rounded down.

• Num_digits    Required. The number of digits to which you want to round number.

## Remarks

• ROUNDDOWN behaves like ROUND, except that it always rounds a number down.

• If num_digits is greater than 0 (zero), then number is rounded down to the specified number of decimal places.

• If num_digits is 0, then number is rounded down to the nearest integer.

• If num_digits is less than 0, then number is rounded down to the left of the decimal point.

## Example

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

How do I copy an example?

Important   Do not select the row or column headers.

Selecting an example from Help

2. Press CTRL+C.

3. In Excel, create a blank workbook or worksheet.

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

Important   For the example to work properly, you must paste it into cell A1 of the worksheet.

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.

After you copy the example to a blank worksheet, you can adapt it to suit your needs.

 1 2 3 4 5 6
 A B Formula Description (Result) =ROUNDDOWN(3.2, 0) Rounds 3.2 down to zero decimal places (3) =ROUNDDOWN(76.9,0) Rounds 76.9 down to zero decimal places (76) =ROUNDDOWN(3.14159, 3) Rounds 3.14159 down to three decimal places (3.141) =ROUNDDOWN(-3.14159, 1) Rounds -3.14159 down to one decimal place (-3.1) =ROUNDDOWN(31415.92654, -2) Rounds 31415.92654 down to 2 decimal places to the left of the decimal (31400)

Applies To: Excel 2010, Excel Starter, Excel Online, SharePoint Online

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