> ## Documentation Index
> Fetch the complete documentation index at: https://docs.theblockchainlibrary.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Read ETH Balance with ethers.js

> Query an Ethereum address's native ETH balance using ethers.js v6.

# Read ETH Balance with ethers.js

Query an Ethereum address's native ETH balance using ethers.js v6.

Query an Ethereum address's native ETH balance using ethers.js v6.

## Explanation

This snippet connects to a public Ethereum RPC endpoint and reads an address's balance.

**Key concepts:**

* `JsonRpcProvider` connects to an Ethereum node via HTTP.
* `getBalance()` returns the balance in **wei** (the smallest ETH unit).
* `ethers.formatEther()` converts wei to a human-readable ETH string.

Use this pattern to display wallet balances in any frontend application.

## Code

```javascript theme={null}
import { ethers } from "ethers";

const provider = new ethers.JsonRpcProvider(
  "https://rpc.ankr.com/eth"
);

async function getBalance(address) {
  const balanceWei = await provider.getBalance(address);
  const balanceEth = ethers.formatEther(balanceWei);
  console.log(`Balance: ${balanceEth} ETH`);
  return balanceEth;
}

getBalance("0x742d35Cc6634C0532925a3b844Bc454e4438f44e");
```

***

**Canonical knowledge ID:** `code-example:read-eth-balance-ethersjs`