Cross-chain · Ethereum → Arbitrum One

Swap DAI from Ethereum to WETH on Arbitrum One

Swap DAI from Ethereum to WETH on Arbitrum One. A trader moving Maker DAI into wrapped ETH on chain 42161 receives Arbitrum WETH.

DAI is not a wrapper around ETH. You spend 0x6B175474E89094C44Da98b954EedeAC495271d0F on Etherscan. You receive 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 on Arbiscan. That WETH is not 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2, and withdrawing from the mainnet contract is not this route. The chain is Arbitrum One, not Nova. Chain id 1 gas is ETH. Chain id 42161 gas is a separate ETH balance, and the received WETH cannot pay it. Switch to chain id 42161 before you search. The mainnet WETH row on Etherscan does not move when this pair completes, so the network badge matters. Confirm the WETH contract on Arbiscan before you deposit.

Diagram for Swap DAI from Ethereum to WETH on Arbitrum One
DAI leaves Ethereum. WETH is what can arrive on Arbitrum One.

Arbitrum WETH is an ERC-20 on Arbiscan

Search 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 before you treat the balance as spendable ETH. It will not pay fees on chain id 42161. It will not show as native ETH on Ethereum. The wallet has to be on Arbitrum One.

Buying WETH with DAI on mainnet stays home

This route is the wrong tool if you want 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 or native ETH on chain id 1. Those markets are on Ethereum. How cross-chain bridges work is the split. Bridge when the WETH address you were given is the Arbiscan one.

The DAI approval

Only 0x6B175474E89094C44Da98b954EedeAC495271d0F. Maker DAI and Arbitrum WETH both use 18 decimals, so the unit count can look familiar while the asset changes from a dollar to wrapped ETH. You still need ETH on Ethereum so the approval can be mined. Blocks there are about 12 seconds.

L2 ETH has to be waiting

Plan ETH on the receiving address on chain id 42161. Arbitrum WETH cannot sponsor its own first transfer. Until that gas is present, the token can be visible on Arbiscan and still be stuck. Nova is the wrong network to search.

Legal

Risk disclosure

XAUConnect is a non-custodial swap aggregator. Digital assets are volatile and may lose value rapidly. Content on this page is educational and not investment advice. Verify every contract address on the official block explorer before approving a transaction.

Frequently asked questions

What is the best way to swap DAI from Ethereum to WETH on Arbitrum One?

DAI is not a wrapper around ETH. You spend 0x6B175474E89094C44Da98b954EedeAC495271d0F on Etherscan.

Is this an unwrap of DAI into ETH?

DAI is not wrapped ETH, so there is nothing to unwrap. Selling DAI for WETH on Ethereum credits 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. This route credits 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 on Arbitrum One. Use it when that Arbiscan contract is the position. Skip it when ETH exposure should stay on mainnet.

Which explorers do I check?

Etherscan for the DAI spend at 0x6B175474E89094C44Da98b954EedeAC495271d0F. Arbiscan for the WETH credit at 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. Native ETH would use the 0xEeee placeholder and is not the output. Chain id 42161 is Arbitrum One, not Nova. Confirm both strings before you sign.

What blocks the WETH after it arrives?

No ETH on Arbitrum One. Chain id 42161 charges ETH for every transfer, and this WETH is an ERC-20. Add gas on that chain before the next signature. You also needed ETH on chain id 1 to spend the DAI. The route delivers neither gas balance.

Live execution

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Open the swap page with this cross-chain route pre-selected, then connect your wallet on the source chain to quote and execute. You keep the keys.

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