# Functions ## u8aToBn ▸ **u8aToBn**(value: *`Uint8Array`*, options?: *[ToBnOptions](../interfaces/_types_.tobnoptions.md) | `boolean`*): `BN` *Defined in [u8a/toBn.ts:29](https://github.com/polkadot-js/common/blob/c3fafbe/packages/util/src/u8a/toBn.ts#L29)* *__name__*: u8aToBn *__summary__*: Creates a BN from a Uint8Array object. *__description__*: `UInt8Array` input values return the actual BN. `null` or `undefined` values returns an `0x0` value. *__example__*: ```javascript import { u8aToBn } from '@polkadot/util'; u8aToHex(new Uint8Array([0x68, 0x65, 0x6c, 0x6c, 0xf])); // 0x68656c0f ``` **Parameters:** | Name | Type | Default value | Description | | ------ | ------ | ------ | ------ | | value | `Uint8Array` | - | The value to convert | | `Default value` options | [ToBnOptions](../interfaces/_types_.tobnoptions.md) | `boolean` | { isLe: true, isNegative: false } | Options to pass while converting | **Returns:** `BN` ___