# llRound

*LSL function*

```lsl
integer integer llRound(float val);
```

- `float val`: Number to round.

- Returns: `integer`
- Energy: 10

If the absolute value of the tenths position is 4 or less, **val** is rounded off; otherwise, **val** is rounded towards positive infinity.

```lsl title="How to use" frame="terminal"
integer result = llRound(0.0);
```

## Caveats

- The returned value is -2147483648 (0x80000000) if the arithmetic result is outside of the range of valid integers (-2147483648 to 2147483647 inclusive).

## Examples

<details open>
<summary>Example 1</summary>

```lsl
default
{
   state_entry()
   {
       llSay(0,  "The rounded value of -4.9 is: "+(string)llRound(-4.9) );
       //Returns "The rounded value of -4.9 is: -5"

       llSay(0,  "The rounded value of -4.1 is: "+(string)llRound(-4.1) );
       //Returns "The rounded value of -4.1 is: -4"

       llSay(0,  "The rounded value of 4.5 is: "+(string)llRound(4.5) );
       //Returns "The rounded value of 4.5 is: 5"

       llSay(0,  "The rounded value of 4.9 is: "+(string)llRound(4.9) );
       //Returns "The rounded value of 4.9 is: 5"

       llSay(0,  "The rounded value of 4.1 is: "+(string)llRound(4.1) );
       //Returns "The rounded value of 4.1 is: 4"

       llSay(0,  "The rounded value of -4.5 is: "+(string)llRound(-4.5) );
       //Returns "The rounded value of -4.5 is: -4"
    }
}
```

</details>

## Notes

- For positive values, it is quicker to add 0.5 to the value and cast to an integer. i=(integer)(f+0.5) produces less bytecode than i=`llRound(f)` and is about 5 times faster in execution, while giving the same result.

## See also

### Functions

- [llCeil](/functions/llCeil/) — Rounds the float to an integer towards positive infinity
- [llFloor](/functions/llFloor/) — Rounds the float to an integer towards negative infinity

---

*Source: [LlRound](https://wiki.secondlife.com/wiki/LlRound) on the Second Life Wiki. Content from the Second Life Wiki article LlRound (revision 1214972, 2023-10-09), CC BY-SA 3.0.*

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From lsl.dev: https://lsl.dev/functions/llRound/