Cross-chain · Ethereum → Arbitrum One
Swap WETH from Ethereum to USDT on Arbitrum One
Swap WETH from Ethereum to USDT on Arbitrum One. A chain 42161 wallet that needs Tether spends wrapped ETH from Ethereum and receives Arbitrum USDT.
Approve WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Etherscan. That contract is not native ETH. The Tether you receive is 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 on Arbiscan, 6 decimals. Ethereum USDT at 0xdAC17F958D2ee523a2206206994597C13D831ec7 is a different contract. Gas to start is ETH on chain id 1, about 12 seconds a block. Gas after arrival is ETH on Arbitrum One, chain id 42161, not Nova. The USDT cannot pay that second fee. Switch to chain id 42161 and match the Arbiscan USDT before you tell a payee the transfer finished. An Ethereum address will not display this balance. Confirm the USDT on Arbiscan before you tell the payee.
WETH on Etherscan, USDT on Arbiscan
Sell WETH for USDT on mainnet if you are staying
ETH on Arbitrum One comes second
Payments that name this USDT
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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 WETH from Ethereum to USDT on Arbitrum One?
Approve WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Etherscan. That contract is not native ETH.
Is spending WETH the same as spending ETH?
No. WETH is the ERC-20 at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. Native ETH is the gas coin, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE when a route needs it. This pair approves WETH. You still need a separate ETH balance for the chain id 1 fee. Unwrapping first stays on Ethereum.
Which USDT arrives?
0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 on Arbiscan, 6 decimals, on Arbitrum One. Ethereum Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 is not credited. If your payee uses the Ethereum contract, this route is the wrong tool. Chain id 42161 is the network, not Nova. Match the invoice address before you send.
What stops the USDT from moving later?
An empty ETH balance on Arbitrum One. Chain id 42161 charges ETH for every token transfer. The USDT cannot sponsor itself. Put ETH on the receiving wallet before a second transaction. The ETH on Ethereum was only enough to start the route.
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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