# Infinity Constant

Use Infinity in Calcul.io. See what this built-in constant represents, enter it in an editable calculation, and review related values and units.

## Infinity

Try it yourself:

```calculio
Infinity
1 / 0
```

---

## Infinity: an unbounded value

**Infinity** represents an unbounded positive value in calculations. It is useful for limits and sentinel values, but it is not an ordinary finite number.

## Safe handling

Use [isFinite()](https://calcul.io/function/isFinite/index.md) to reject it from ordinary totals, and [isBounded()](https://calcul.io/function/isBounded/index.md) when validating ranges. [max()](https://calcul.io/function/max/index.md) and [min()](https://calcul.io/function/min/index.md) may legitimately involve infinite bounds.

## Caveat

Expressions such as Infinity minus Infinity are undefined; use limits or reformulate the problem rather than expecting ordinary arithmetic.

[All constants](https://calcul.io/constants/index.md)