ROUNDDOWN function

Rounds a number down, toward zero.

Syntax

ROUNDDOWN(number,num_digits)

Number     is any real number that you want rounded down.

Num_digits     is 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.

1. Create a blank workbook or worksheet.
2. Select the example in the Help topic.

Note   Do not select the row or column headers.

Selecting an example from Help
1. Press CTRL+C.
2. In the worksheet, select cell A1, and press CTRL+V.
3. 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.
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 2007