Cross-chain · Ethereum → Polygon
Swap ETH from Ethereum to USDT on Polygon
Swap ETH from Ethereum to USDT on Polygon. A chain 137 wallet that needs Tether spends native ETH from Ethereum and receives the PoS USDT.
You send native ETH, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, the gas coin on Etherscan for chain id 1. You receive 0xc2132D05D31c914a87C6611C10748AEb04B58e8F on Polygonscan, 6 decimals. Ethereum Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 is not the output. Leave ETH in the wallet for the mainnet fee. Blocks on Ethereum are about 12 seconds. Polygon then charges POL. Switch to chain id 137 before looking for the Tether. Etherscan will not show a new USDT balance from this pair, even though the ticker on both networks can read USDT. Confirm it on Polygonscan.
Ethereum already pairs ETH with Tether
Six decimals on the way in
POL is still required
Who wants this Tether
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 ETH from Ethereum to USDT on Polygon?
You send native ETH, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, the gas coin on Etherscan for chain id 1. You receive 0xc2132D05D31c914a87C6611C10748AEb04B58e8F on Polygonscan, 6 decimals.
Does my Ethereum USDT balance change?
No. Ethereum Tether remains 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Etherscan. This route delivers 0xc2132D05D31c914a87C6611C10748AEb04B58e8F on Polygonscan. Switch to chain id 137 and match the full address. The ticker can read USDT on both networks while the contracts stay different. The contracts stay different even when the ticker matches.
Why can a full ETH balance fail?
The ETH you sell and the ETH that pays gas are one coin. Setting the amount to the entire native balance leaves nothing for chain id 1. Lower it until ETH remains. Native ETH uses 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE and does not need a token approval. Blocks are about 12 seconds.
Will Polygon USDT pay the next fee?
No. It is an ERC-20. Gas on chain id 137 is POL, and blocks there are about 2 seconds only after that fee can be paid. If the receiving wallet has no POL, add some before you move the Tether. The route's job ends when the USDT arrives.
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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