ROUNDDOWN function: Description, Usage, Syntax, Examples and Explanation

What is ROUNDDOWN function in Excel?

ROUNDDOWN function is one of the Math and Trig functions in Microsoft Excel that rounds a number down, toward zero.

Syntax of ROUNDDOWN function

ROUNDDOWN(number, num_digits)

The ROUNDDOWN function syntax has the following arguments:

  • Number: Any real number that you want rounded down.
  • Num_digits: The number of digits to which you want to round number.
Also See:   Round numbers in Excel

ROUNDDOWN formula explanation

  • 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.
Also See:   Excel Round a number down Example

Example of ROUNDDOWN function

Steps to follow:

1. Open a new Excel worksheet.

2. Copy data in the following table below and paste it in cell A1

Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.

You can adjust the column widths to see all the data, if need be.

Also See:   Excel Round a number down Example
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 point. 31400

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