This article describes the formula syntax and use of the FLOOR function in Microsoft Excel.
Description
The FLOOR function in Excel rounds a specified number down to the nearest specified multiple of significance. Negative numbers are rounded down (further negative) to nearest whole multiple below zero.
Syntax
FLOOR(number, significance)
The FLOOR function syntax has the following arguments:
-
Number Required. The numeric value you want to round.
-
Significance Required. The multiple to which you want to round.
Remarks
-
If either argument is nonnumeric, FLOOR returns the #VALUE! error value.
-
If Number is positive and Significance is negative, FLOOR returns the #NUM! error value.
-
If the sign of Number is positive, a value is rounded down toward zero. If the sign of Number is negative, a value is rounded down, adjusted away from zero (further negative).
Example
Copy all the fields in the following table. In a new Excel worksheet, paste all into cell A1 and adjacent cells. If you do not automatically see results, select and press F2 on the formulas. Adjust column widths if needed to see all.
|
Formula |
Description |
Result |
|---|---|---|
|
=FLOOR(3.7,2) |
Rounds 3.7 down to nearest multiple of 2. |
2 |
|
=FLOOR(-2.5,-2) |
Rounds -2.5 down to nearest multiple of -2. |
-2 |
|
=FLOOR(2.5,-2) |
Returns an error value, because 2.5 and -2 have different signs. |
#NUM! |
|
=FLOOR(1.58,0.1) |
Rounds 1.58 down to the nearest multiple of 0.1. |
1.5 |
|
=FLOOR(0.234,0.01) |
Rounds 0.234 down to the nearest multiple of 0.01. |
0.23 |
