> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-docs-sync-code-change-be6d045.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# IB20Asset.fromUIAmount

> ERC-8056 UI-to-raw conversion reference.

<Warning>
  The source file that documented this function (`docs/B20/Asset.md`) has been removed as part of a documentation restructure. The content below reflects the last verified state of this function's behavior.
</Warning>

## Signature

```solidity IB20Asset.sol theme={null}
function fromUIAmount(uint256 uiAmount) external view returns (uint256);
```

| Field               | Value                   |
| ------------------- | ----------------------- |
| Selector            | `0x65cd9b3c`            |
| Canonical signature | `fromUIAmount(uint256)` |

## Description

Converts `uiAmount` to its raw token representation at the effective multiplier. The result is integer-floored, so a round-trip through `toUIAmount` → `fromUIAmount` can lose up to one ULP of the scaled amount.

## Parameters

| Name       | Type      | Description                               |
| ---------- | --------- | ----------------------------------------- |
| `uiAmount` | `uint256` | The UI (scaled) amount to convert to raw. |

## Returns

| Type      | Description                         |
| --------- | ----------------------------------- |
| `uint256` | The raw token amount, rounded down. |

## Behavior

* Applies the currently effective multiplier (see `uiMultiplier()`).
* Division rounds down; the raw result may be one ULP less than the exact quotient.
* Part of the ERC-8056 optional Conversion extension (`0x57854fc3`).