# Documentation/Calc Functions/ROUNDDOWN

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## Function name:

ROUNDDOWN

## Category:

Mathematical

## Summary:

Rounds a number down, toward zero, to a certain precision. So, it rounds positive numbers down and negative numbers up.

## Syntax:

ROUNDDOWN(**Number** [; **Count**])

## Returns:

Returns **Number** rounded down (towards zero) to **Count** decimal places.

## Arguments:

**Number** is a real number or a reference to the cell containing that number which is to be rounded down to a certain number of decimal places.

**Count** is an integer or a reference to the cell containing that integer which is the number of decimal places to which **Number** is to be rounded down.

- If
**Count**is omitted or zero, the function rounds to the nearest integer. If Count is negative, the function rounds to the nearest 10, 100, 1000, etc. - If
**Count**is a non-integer value then the function uses the floor of the input value, i.e. it is truncated to an integer. For eg. 2.5 is truncated to 2 and -2.5 is truncated to -2.

## Additional details:

This function rounds towards zero. See ROUNDUP and ROUND for alternatives.

## Examples:

Formula | Description | Returns |
---|---|---|

=ROUNDDOWN(2.348;2) | rounds down 2.348 to 2 decimal places | 2.34 |

=ROUNDDOWN(-32.4834;3) | rounds down -32.4834 to 3 decimal places | -32.483 |

=ROUNDDOWN(2.648;0) | gives integer part of 2.348 by rounding down | 2 |

=ROUNDDOWN(-45.67) | rounds down -45.67 to integer towards 0 | -45 |

=ROUNDDOWN(987.65;-2) | rounds down 987.65 to 2 places before decimal point | 900 |

## Related LibreOffice functions:

## ODF standard:

## Equivalent Excel functions:

ROUNDDOWN