# Round numbers[¶](https://doc.dataiku.com/dss/latest/preparation/processors/round.html#round-numbers "Permalink to this headline")

Round decimal numbers in one or several columns using round, floor, or ceil.

## Options[¶](https://doc.dataiku.com/dss/latest/preparation/processors/round.html#options "Permalink to this headline")

**Column**

Apply rounding to numbers in the following:

* A single column

* An explicit list of columns

* All columns matching a regex pattern

* All columns

**Rounding mode**

Select how to round numbers:

* Round: Round the number to the specified significant digit.

* Floor: Round the number down, or toward zero.

* Ceil: Round the number up, or away from zero.

**Significant digits**

Control the *precision* of the number. `1234.5` with 2 significant digits is `1200`. Using 0 means the number is unbounded and keeps all significant digits.

**Decimal places**

How many numbers to show after the decimal point. `1.234` with 1 decimal place is `1.2`. Using 0 rounds to the integer; -2 rounds to the hundreds.
