---
category: '@Math'
---

# useAverage

Get the average of an array reactively.

## Usage

```ts
import { useAverage } from '@vueuse/math';

const list = ref([1, 2, 3]);
const averageValue = useAverage(list); // Ref<2>
```

```ts
import { useAverage } from '@vueuse/math';

const a = ref(1);
const b = ref(3);

const averageValue = useAverage(a, b); // Ref<2>
```

## Type Declarations

```ts
export declare function useAverage(
  array: MaybeRefOrGetter<MaybeRefOrGetter<number>[]>,
): ComputedRef<number>;
export declare function useAverage(...args: MaybeRefOrGetter<number>[]): ComputedRef<number>;
```