---
title: getMinimumBalanceForRentExemption
description: >-
  Returns the lamports required to make an account of a given data size rent
  exempt.
url: /docs/rpc/http/getminimumbalanceforrentexemption
type: reference
hideTableOfContents: true
---

Returns the lamports required to make an account of a given data size rent
exempt.

<Callout type="info" title="Source">
  [`get_minimum_balance_for_rent_exemption`](https://github.com/anza-xyz/agave/blob/v3.1.8/rpc/src/rpc.rs#L590)
</Callout>

<APIMethod>

```jsonc !!request curl
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getMinimumBalanceForRentExemption",
  "params": [
    // !hover length
    50,
    // !hover(1:3) config
    {
      // !hover commitment
      "commitment": "processed"
    }
  ]
}
```

```ts !!request title="Kit"
import { createSolanaRpc } from "@solana/kit";

const rpc_url = "https://api.devnet.solana.com";
const rpc = createSolanaRpc(rpc_url);

// !hover length
let dataLength = BigInt(50);
let minBalForRentExemption = await rpc
  .getMinimumBalanceForRentExemption(dataLength)
  .send();

console.log(minBalForRentExemption);
```

```ts !!request title="web3.js"
import { Connection, clusterApiUrl } from "@solana/web3.js";

const connection = new Connection(clusterApiUrl("devnet"), "confirmed");

// !hover length
let dataLength = 50;
let minBalForRentExemption =
  await connection.getMinimumBalanceForRentExemption(dataLength);

console.log(minBalForRentExemption);
```

```rs !!request title="Rust"
use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_commitment_config::CommitmentConfig;

#[tokio::main]
async fn main() -> Result<()> {
    let client = RpcClient::new_with_commitment(
        String::from("https://api.devnet.solana.com"),
        CommitmentConfig::confirmed(),
    );

    // !hover length
    let data_len = 50;

    let min_bal_for_rent_exemption = client
        .get_minimum_balance_for_rent_exemption(data_len)
        .await?;

    println!("{:#?}", min_bal_for_rent_exemption);

    Ok(())
}
```

### !params

#### !! length

!type usize  
!required

The Account's data length

#### !! config

!type object

Configuration object containing the following fields:

##### !! commitment

!type string  
!values processed confirmed finalized  
!default finalized

Solana RPC uses the following commitment levels:

| Value       | Description                                                                                                                                                                                                                                                                |
| ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `processed` | Return data from the highest slot this node has processed on the fork it currently considers best. This is the newest view, but it can still change if the cluster switches forks.                                                                                         |
| `confirmed` | Return data from the highest slot that at least two-thirds of active stake has directly voted to confirm. This is more stable than `processed`, but it is still a weaker guarantee than `finalized`.                                                                       |
| `finalized` | Return data from the highest slot that the cluster recognizes as finalized. In practice, this means the slot has reached maximum vote lockout in validators' vote towers and is recognized by at least two-thirds of active stake. This is the strongest commitment level. |

### !!result

```jsonc !response
{
  "jsonrpc": "2.0",
  // !hover result
  "result": 1113600,
  "id": 1
}
```

!type u64

Minimum lamports required in the Account to remain rent free

</APIMethod>