Cross-chain · Arbitrum One → Ethereum

Swap USDT from Arbitrum One to ETH on Ethereum

Swap USDT from Arbitrum One to ETH on Ethereum. Tether USDT leaves Arbitrum One and native ETH arrives on Ethereum.

Tether's contract on the way out is 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9. Confirm it on Arbiscan while the wallet sits on Arbitrum One, chain id 42161, not Nova. The way in is native ETH, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. That sentinel means the gas coin on Ethereum, chain id 1, not WETH. Etherscan will not show a token supply for it. Blocks on Ethereum are about 12 seconds. The bridge does not inherit that tempo as a promised credit time.

Diagram for Swap USDT from Arbitrum One to ETH on Ethereum
USDT leaves Arbitrum One. ETH is what can arrive on Ethereum.

A dollar token in, a volatile coin out

USDT is built to track a dollar. ETH is not. Between the quote and the signature, the ETH amount can move. The minimum received is the floor you accept. If that floor is no longer enough, wait for a new quote rather than signing a stale one. Nothing here locks the price of ETH while a message moves between Arbitrum One and Ethereum. Size the trade for a move you can tolerate.

The sentinel is not an ERC-20

0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE stands in for native gas. On this route the destination chain is Ethereum, so the credit is ETH in the account, not an ERC-20 transfer you can watch on a token page. Etherscan's transaction view for the destination wallet is the useful check. If someone sends you a token contract and calls it ETH, compare it with WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. That contract is a different asset.

Keep fee ETH even though you are selling USDT

The asset you sell is Tether, but the fee on chain id 42161 is ETH. An empty ETH balance on Arbitrum One stops the approval and the swap. USDT cannot substitute. After native ETH arrives on Ethereum, that new balance is mainnet ETH, not a refund of the fee you already paid on Arbitrum. Arbitrum One uses the same ticker for gas and still keeps a separate balance.

Not the page for staying in dollars

Skip this route if you wanted Circle USDC or Maker DAI on Ethereum. Both would be stablecoin outcomes. This one is ETH. Skip it if you needed WETH specifically, if your USDT is not 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9, or if the wallet is on Arbitrum Nova. A same-chain sale of USDT for ETH on Arbitrum One is also a different task, because nothing would arrive on Ethereum.

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 USDT from Arbitrum One to ETH on Ethereum?

Tether's contract on the way out is 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9. Confirm it on Arbiscan while the wallet sits on Arbitrum One, chain id 42161, not Nova.

Does native ETH on Ethereum equal WETH?

No. This route credits the gas balance, using the sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. WETH is the separate contract 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. Protocols that only pull WETH will not see your ETH until you wrap it. Wrapping on Ethereum costs a little of that ETH in gas, so do not plan to wrap the entire balance.

Which USDT contract does Arbiscan need to show?

0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9. That is Tether USDT on Arbitrum One, chain id 42161. Ethereum's Tether contract, 0xdAC17F958D2ee523a2206206994597C13D831ec7, is not what you spend. If the wallet is on Nova, the Arbiscan contract for One will not match the network, and the approval will be on the wrong chain.

Will the ETH amount stay fixed while I review?

Only until the quote expires. ETH is volatile against USDT, so a pause can change the minimum. Read the floor again before you sign. About 12 seconds on Etherscan is an Ethereum block interval, not a guarantee that the same ETH amount is still available. If the quote lapses, request another and check the new minimum.

Live execution

Trade on XAUConnect

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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