Cross-chain · Ethereum → Polygon
Swap USDT from Ethereum to WETH on Polygon
Swap USDT from Ethereum to WETH on Polygon. Traders who want wrapped ETH on chain 137 spend Tether from Ethereum and receive Polygon WETH.
The output is 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 on Polygonscan, an 18 decimal ERC-20. It is not native ETH and it will not pay POL gas. You spend Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Etherscan. Ethereum WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 is a different contract on a different explorer. Chain id 1 gas is ETH, about 12 seconds a block. Chain id 137 gas is POL, about 2 seconds a block. A wallet that stays on Ethereum and watches Etherscan will not see this WETH. The credit exists only on chain id 137, under the Polygonscan contract, after you switch networks. Check Polygonscan before you trade it.
Sell Tether for WETH on mainnet if you are staying
Match Tether in and WETH out
Two gas coins, neither is the output
Where this WETH gets deposited
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 Ethereum to WETH on Polygon?
The output is 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 on Polygonscan, an 18 decimal ERC-20. It is not native ETH and it will not pay POL gas.
Will my Ethereum WETH balance increase?
No. Ethereum WETH stays at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Etherscan. This route pays 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 on Polygonscan. Switch the wallet to chain id 137 before you look. If the wallet network is still Ethereum, the new WETH is invisible and the old WETH is unchanged.
Why does the send ask for ETH when I am spending USDT?
Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 is an ERC-20. Moving it on chain id 1 costs ETH. The approval can be its own transaction. A wallet that holds only USDT cannot finish the route. Add ETH for gas. Blocks are about 12 seconds. POL is a later requirement, on Polygon.
Does Polygon WETH pay the next swap?
It pays the trade only in the sense that it is the asset you can sell. The network fee is POL. If the destination wallet has no POL, the WETH can be visible on Polygonscan and still be stuck. Fund POL first, or choose a route that outputs native POL.
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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