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Excel ROUNDDOWN Function

Author: Sun Last Modified: 2022-03-11

doc workday.intl function 1

If you want to follow along with this tutorial, please download the example spreadsheet.

doc workday.intl function 1


The Excel ROUNDDOWN function rounds a number down (toward zero) to a specified number of digits.

Syntax and arguments

Formula syntax

ROUNDDOWN(number, num_digits)


  • Number: Required, the number that used to round down.
  • Num_digits: Required, the number that determines the place at which number should be rounded down.
    --Num_digits > 0, round number down to the right side of decimal point, such as ROUNDDOWN(1235.36,1)=1235.3;
    --Num_digits = 0, round number down to the nearest integer, such as ROUNDDOWN(1235.36,0)=1235;
    --Num_digits < 0, round number down to the left side of decimal point, such as ROUNDDOWN(1235.36,-1)=1230.

Return Value

The ROUNDDOWN function returns to a numeric value.


Excel 2003


If argument number is > 0, the ROUNDDOWN number returns result <= number.

If argument number is < 0, the ROUNDDOWN number returns result >= number.

Usage and Examples

Example: basic usage

In range C3:G3 contains the different number of digits you want to use to round the number down in cell B4:B5, please use below formula to get the corresponding rounding results.


Press Enter key, and drag autofill handle right to get all rounding results of the number in cell B4.

doc workday.intl function 1

Then drag autofill handle down to next row, the rounding results of the number in cell B5 are displayed.

doc workday.intl function 1

Note: If you only use the ROUNDDOWN function once, you can directly type the number and number digits into the function as this:


Relative Functions:

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