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Excel FLOOR.MATH 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 ExcelFLOOR.MATH function rounds a given number down to the nearest integer or nearest multiple of the specified significance.

Differ from FLOOR function, the argument significance of FLOOR.MATH function can be omitted (if it is omitted, the number will be rounded down to the nearest integer, for example, FLOOR.MATH(4.5)=4), and the argument mode can be used to be choose the direction to round negative numbers.

Syntax and arguments

Formula syntax

FLOOR.MATH(number, [significance], [mode])


  • Number: Required, the number that used to round.
  • Significance: Optional, the multiple to which used to round. Default is 1 if it is omitted. Note the arithmetic sign of significance is ignored.
    • Mode: Optional, a numeric value that decides round number down or up when number is negative.
      -when mode is 0 or omitted, a negative number is rounded down (away from zero), for example, FLOOR.MATH(-5,2)=-6.
      -when mode is other numeric value, a negative number is rounded up (toward zero), for example, FLOOR.MATH(-5,2,1)=-4.

Return Value

The FLOOR.MATH function returns to a numeric value.


#VALUE! error value occurs when the anyone of arguments is not a numeric value.


If the argument number is an exact multiple of significance, FLOOR.MATH function returns to the number itself, for example, FLOOR.MATH(10,2)=10.


Excel 2013 or later

Usage and Examples

Example: basic usage

In table B4:D8 which contains the numbers, specified significances and modes, you can use FLOOR.MARH function to round numbers down and get the nearest integers or multiples as this:


Press Enter key to get the first result, then drag autofill handle down to get all results.

 doc workday.intl function 1

Relative Functions:

  • Excel FACT Function
    The FACT function eturns the factorial of a given number. For example, FACT(5)=120, equivalent to 5 x 4 x 3 x 2 x 1.

  • Excel FACTDOUBLE Function
    The FACTDOUBLE function returns the double factorial of a given number. For example, FACTDOUBLE(5)=15, equivalent 5 x 3 x 1.

  • Excel FLOOR Function
    The FLOOR function rounds a given number down to the nearest multiple of the specified significance.

  • Excel RECEIVED Function
    The RECEIVED function returns the amount received at maturity for a fully invested security.

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