How to Transfer ETH from Ethereum to Base in MetaMask?

Connecting MetaMask to Base Network

1. Open MetaMask extension and click the network selector located at the top-left corner of the interface.

2. Select “Add network” and choose “Base” from the list of popular networks if it appears.

3. If Base is not listed, manually input the network parameters: Network Name: Base, RPC URL: https://mainnet.base.org, Chain ID: 8453, Currency Symbol: ETH, Block Explorer URL: https://basescan.org.

4. Confirm the addition. MetaMask will now display “Base” as an available network option.

5. Switch to Base by selecting it from the network dropdown menu.

Ensuring ETH Availability on Ethereum Mainnet

1. Verify your current balance on the Ethereum mainnet before initiating any transfer.

2. Confirm that the wallet holds sufficient ETH to cover both the transfer amount and gas fees on Ethereum.

3. Check transaction history to ensure no pending outbound transactions are blocking further actions.

4. Ensure the wallet address displayed in MetaMask matches the one you intend to use for the transfer.

5. Avoid using hardware wallet interfaces without prior firmware and app updates compatible with cross-chain transfers.

Using a Bridge to Move ETH to Base

1. Navigate to a trusted bridge such as the official Base Bridge (bridge.base.org) or Coinbase Bridge.

2. Connect your MetaMask wallet to the bridge website by clicking “Connect Wallet” and approving the connection request.

3. Select Ethereum as the source chain and Base as the destination chain.

4. Enter the amount of ETH to transfer and review estimated time, fees, and confirmation requirements.

5. Initiate the bridge transaction and wait for Ethereum-side confirmation; this usually requires 1–3 block confirmations.

Confirming Receipt on Base

1. After the bridge completes processing, switch MetaMask’s network to Base.

2. Refresh the account view — the bridged ETH should appear in the balance within minutes after finalization.

3. Cross-check the transaction hash on https://basescan.org using the “View on BaseScan” link provided by the bridge UI.

4. Confirm that the received ETH is native to Base and not an ERC-20 wrapped version unless explicitly intended.

5. Test a small internal transfer on Base to verify full functionality of the balance and gas estimation.

Frequently Asked Questions

Q1. Why does my ETH not show up on Base immediately after bridging?Bridge finalization depends on Ethereum block confirmations and Base sequencing delays. Wait at least 10–15 minutes and verify the transaction status on BaseScan.

Q2. Can I send ETH directly from Ethereum to Base without a bridge?No. Ethereum and Base operate on separate execution layers. A trust-minimized bridge is mandatory for asset movement between them.

Q3. Is the ETH I receive on Base the same as Ethereum ETH?Yes. Base ETH is canonical ETH issued natively on Base through the bridge — it is not a wrapped token and carries identical value and utility.

Q4. What happens if I select the wrong network before confirming a bridge transaction?If MetaMask is set to Ethereum while initiating a bridge to Base, the transaction still processes correctly. The bridge handles chain context independently of MetaMask’s active network during signing.