Cross-chain · Ethereum → Polygon
Swap USDC from Ethereum to WETH on Polygon
Swap USDC from Ethereum to WETH on Polygon. A chain 137 wallet that wants wrapped ETH spends Circle USDC on Ethereum to receive it.
The WETH that arrives is 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 on Polygonscan. It is not Ethereum WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2, and it is not native ETH. You spend Circle USDC at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Etherscan. Ethereum gas is ETH, chain id 1, about 12 seconds a block. Polygon gas is POL, chain id 137, about 2 seconds a block. The received WETH cannot pay either fee. Switch to chain id 137 and import the Polygonscan contract before you decide the WETH is missing. The Ethereum wallet keeps showing the old mainnet WETH balance until you change networks.
Two WETH contracts, two explorers
Buying WETH on Ethereum is a different job
POL has to be there already
What Polygon WETH is used for
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 USDC from Ethereum to WETH on Polygon?
The WETH that arrives is 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 on Polygonscan. It is not Ethereum WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2, and it is not native ETH.
Is Polygon WETH the same token as mainnet WETH?
No. Mainnet WETH is 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Etherscan. This route pays 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 on Polygonscan. Both are ERC-20s that track ETH, and a pool on one chain will not take the other contract. Check the network badge in the wallet before you deposit.
Which token do I approve?
Circle USDC at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Etherscan. You do not approve Polygon WETH before it arrives. You do need ETH on chain id 1 for gas, because USDC cannot pay it. Blocks there are about 12 seconds. The approval and the send can be two transactions.
What if the Polygon app wants native POL instead?
Then this output is the wrong asset. POL is the gas coin, marked with the 0xEeee placeholder, and this route delivers WETH. Pick the USDC to POL pair when the gap is gas. Pick this pair when the pool or transfer asks for 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619.
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.
Continue exploring
Related markets, guides & networks
Next pages on this subject. Read them before you trade.
Swap DAI
Swap Dai Stablecoin (DAI) on Ethereum. Ethereum quotes on XAUConnect, with the fee and the minimum you receive shown bef
Swap BNB
Swap BNB (BNB) on Ethereum. Ethereum quotes on XAUConnect, with the fee and the minimum you receive shown before you sig
Swap UNI
Swap Uniswap (UNI) on Ethereum. Ethereum quotes on XAUConnect, with the fee and the minimum you receive shown before you
Swap USDC
Swap USD Coin (USDC) on Ethereum at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48. Circle's token, not a bridged copy, and
How to move tokens from Ethereum to Solana
Bridge tokens from Ethereum to Solana with XAUConnect: paste a base58 destination, never 0x, test small, verify the arri
How to create an SPL token on Solana
Create an SPL token on Solana: mint, decimals, revoke freeze/mint authorities, seed a Jupiter-routable pool, then swap t
Build programmatically
Swap via API for bots and AI agents: quotes, builds, and cross-chain routes.