ROUNDDOWN in Excel (Formula, Examples) | How to Use this Function?

Excel Functions Tutorials

ROUNDDOWN Function (Table of Contents)

ROUNDDOWN in Excel
ROUNDDOWN Formula in Excel
How to Use the ROUNDDOWN Function in Excel?

ROUNDDOWN Function in Excel

ROUNDDOWN function is a built-in function in Microsoft Excel. ROUNDDOWN excel function is used to round off the given number. ROUNDDOWN in excel rounds off the given number to the nearest low number w.r.t the given number.

ROUNDDOWN Formula in Excel

Below is the ROUNDDOWN Formula in Excel.

The ROUNDDOWN Function has two arguments out of which both are required. Where,

text = It is a required parameter. It represents any real number that is to be rounded down.
number_of_times = It is also a required parameter. It is the number of digits to which you want to round the number down.

How to Use the ROUNDDOWN Function in Excel?

Let’s look at the examples given below. Each example covers a different use case implemented using the ROUNDDOWN Excel Function.

ROUNDDOWN Function in Excel Worksheet

The ROUNDDOWN function is a Worksheet (WS) function. As an Excel WS function, ROUNDDOWN function can be entered as a part of the formula in the worksheet cells. Refer to a couple of examples given below to know more.

ROUNDDOWN in Excel Example #1 – Round a positive float number to zero decimal places

In the above ROUNDDOWN in excel example, cell B2 is an input number with value 2.3659.

Result cell is C2 wherein the ROUNDDOWN formula applied is =ROUNDDOWN(B2,0) which means rounds down the value in B2 with zero decimal numbers.

This yield result as 2 and the same is seen in the result cell C2.

ROUNDDOWN in Excel Example #2 – Round a negative float number to one decimal places

In the above ROUNDDOWN in excel example, cell B3 is an input number with value -1.8905. Result cell is C3 wherein the ROUNDDOWN formula applied is =ROUNDDOWN(B3,1) which means rounds down the value in B3 with one decimal number.

This yield result as -1.8 and the same is seen in the result cell C3.

ROUNDDOWN in Excel Example #3 – Rounds a positive float number to one decimal place to the left of the decimal point

In the above ROUNDDOWN in excel example, cell B4 is an input number with value -1 233128.698.

Result cell is C4 wherein the ROUNDDOWN formula applied is =ROUNDDOWN(B4,-1) which means the number is to be rounded down to the left of the decimal point by 1.

This yield result as 23312. The same is seen in the result cell C4.

ROUNDDOWN Function in Excel VBA

Excel VBA offers a similar function as that of Excel WS ROUNDDOWN function to achieve the round down functionality.

Syntax:

Application.worksheetfunction.rounddown(number, num_digits);

Here, number and num_digits is like the Excel WS ROUNDDOWN function parameters. The parameters can be hard-coded or be tied to the variables (Dim) in VBA.

Things to remember about ROUNDDOWN Function in Excel

ROUNDDOWN function in excel rounds off the given number to the nearest number down the given number.
Both the parameters are required ones.
If the 2^nd parameter i.e. num_digits is zero then, the number is rounded down to the nearest integer number in the ROUNDDOWN function in excel.
If the 2^nd parameter i.e. num_digits are greater than zero then, the number is rounded down to the number of decimal digits mentioned in the ROUNDDOWN excel function.
If the 2^nd parameter i.e. num_digits are less than 0, then number is rounded down to the left of the decimal point in the ROUNDDOWN function.

You can download this ROUNDDOWN Function in Excel template here – ROUNDDOWN Function Excel Template

ROUNDDOWN Excel Function