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# ROUNDDOWN Function (DAX)

**SQL Server 2008 R2**

Rounds a number down, toward zero.

If num_digits is greater than 0 (zero), then the value in number is rounded down to the specified number of decimal places.

If num_digits is 0, then the value in number is rounded down to the nearest integer.

If num_digits is less than 0, then the value in number is rounded down to the left of the decimal point.

### Related Functions

ROUNDDOWN behaves like ROUND, except that it always rounds a number down. The INT function also rounds down, but with INT the result is always an integer, whereas with ROUNDDOWN you can control the precision of the result.

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