Cross-chain · Ethereum → BNB Chain

Swap WETH from Ethereum to USDT on BNB Chain

Swap WETH from Ethereum to USDT on BNB Chain. A chain 56 wallet that needs Tether spends wrapped ETH from Ethereum and receives BSC-USD.

Approve WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Etherscan. That contract is not native ETH. The Tether you receive is 0x55d398326f99059fF775485246999027B3197955 on BscScan, called BSC-USD, with 18 decimals. Ethereum USDT at 0xdAC17F958D2ee523a2206206994597C13D831ec7 uses 6 decimals and lives on a different explorer. Gas to start is ETH on chain id 1. Gas after arrival is BNB on chain id 56. Switch the wallet to chain id 56 before you expect the Tether to show on BscScan.

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

WETH on Etherscan, BSC-USD on BscScan

Read both addresses in full before you sign. The spend is 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. The receipt is 0x55d398326f99059fF775485246999027B3197955. A wallet that labels both as familiar tickers can still be pointed at a copy. Etherscan and BscScan are the two checks, and they are not interchangeable pages.

BNB Chain gas comes second

Ethereum blocks are about 12 seconds and the fee is ETH, even when the token moving is WETH. BNB Chain blocks are about 3 seconds and the fee is BNB. BNB Chain will not treat BSC-USD as gas. Keep BNB on the destination address or the Tether waits.

When to sell WETH on Ethereum instead

This route is the wrong tool if you want Ethereum Tether or native ETH. Uniswap-style pools already pair WETH with USDT on mainnet, and unwrapping WETH is a local withdraw. Use the bridge when the Tether contract you were given is the BNB Chain one. Staying on chain id 1 is simpler when the pool is already there.

Payments that ask for BSC-USD

Send this output only to a chain 56 address that expects 0x55d398326f99059fF775485246999027B3197955. An Ethereum address, even one controlled by the same person, will not show the tokens on Etherscan. Tell the payee the network as well as the amount.

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 USDT on BNB Chain?

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 is a different transaction and stays on Ethereum.

Which USDT contract arrives?

BSC-USD at 0x55d398326f99059fF775485246999027B3197955 on BscScan, 18 decimals. Ethereum Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 is 6 decimals and is not credited. If your books or your payee use the Ethereum contract, this route is the wrong tool. Match the address the invoice printed.

What blocks the Tether from moving after it arrives?

An empty BNB balance. Chain id 56 charges BNB for every token transfer, and blocks are about 3 seconds only after that fee can be paid. BSC-USD cannot sponsor itself. Put a little BNB on the receiving wallet before you plan a second transaction.

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.

Swap cross-chainExplore markets

Continue exploring

Related markets, guides & networks

Next pages on this subject. Read them before you trade.

Networks
Tokens
Guides
Articles

Build programmatically

Swap via API for bots and AI agents: quotes, builds, and cross-chain routes.

Developer quickstart