Cross-chain · Ethereum → BNB Chain

Swap WETH from Ethereum to ETH on BNB Chain

Swap WETH from Ethereum to ETH on BNB Chain. Wrapped ETH on Ethereum is the input, and Binance-Peg ETH on chain 56 is what arrives.

This is not an unwrap. Unwrapping spends 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 and returns native ETH on Ethereum, which Etherscan shows as a gas balance. This route spends that same WETH contract and delivers 0x2170Ed0880ac9A755fd29B2688956BD959F933F8, Binance-Peg ETH, an ERC-20 on BscScan. Pegged ETH does not pay gas on chain 56. You still need ETH on chain id 1 to start, and BNB on chain id 56 afterward. A local unwrap returns native ETH on Ethereum and never produces the pegged contract on BscScan.

Diagram for Swap WETH from Ethereum to ETH on BNB Chain
WETH leaves Ethereum. ETH is what can arrive on BNB Chain.

Unwrap locally if you want mainnet ETH

This route is the wrong tool for getting native ETH back. The WETH contract on Ethereum already has a withdraw function, and the ETH it returns stays on chain id 1. Open this page only when a BNB Chain pool asks for Binance-Peg ETH. Those are different receipts, on different explorers.

Two ETH tickers, two addresses

You approve 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Etherscan. You watch 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 on BscScan. Native ETH on either chain uses the 0xEeee placeholder and is not what arrives. If the destination balance is an ERC-20, the route did what this pair says.

Gas on the way out of Ethereum

Chain id 1 charges ETH and blocks about every 12 seconds. WETH cannot pay that. Ethereum is where the approval is signed. Chain id 56 then charges BNB, about every 3 seconds, and Binance-Peg ETH cannot pay that either. Budget both coins before you start.

Where pegged ETH is the asset people trade

BNB Chain books that list ETH pairs mean 0x2170Ed0880ac9A755fd29B2688956BD959F933F8. Landing that contract from a WETH balance lets you join those books. You do not receive a claim on the Ethereum WETH contract, and you do not receive bitcoin, BNB, or a stablecoin.

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 WETH from Ethereum to ETH on BNB Chain?

This is not an unwrap. Unwrapping spends 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 and returns native ETH on Ethereum, which Etherscan shows as a gas balance.

If I want ETH, why would I not just unwrap?

Unwrap when the ETH should be mainnet gas. Withdrawing from 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 stays on Ethereum. This route is for Binance-Peg ETH at 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 on BNB Chain. The ticker matches and the chain does not. Pick unwrap for chain id 1 and this pair for chain id 56.

Will the received ETH pay BNB Chain fees?

No. The received asset is an ERC-20. BNB pays fees on chain id 56. Pegged ETH can sit on BscScan with no way to transfer until the wallet holds BNB. Native ETH on Ethereum is similarly useless for that fee, because it lives on chain id 1.

What should I approve?

Only the WETH contract at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Etherscan. There is no destination approval on BNB Chain before the tokens arrive. Keep native ETH for the mainnet gas. After arrival, import the pegged contract on a wallet that is switched to chain id 56.

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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