Cross-chain · Arbitrum One → BNB Chain

Swap USDT from Arbitrum One to ETH on BNB Chain

Swap USDT from Arbitrum One to ETH on BNB Chain. Tether USDT leaves Arbitrum One and pegged ETH arrives on BNB Chain.

Tether on the way out is 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9. Arbiscan, Arbitrum One, chain id 42161, not Nova. Fee in native ETH. Pegged ETH on the way in is 0x2170Ed0880ac9A755fd29B2688956BD959F933F8. BscScan should show that BEP-20. It is not native ETH and not the BNB gas sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. BNB Chain is chain id 56. Blocks about every 3 seconds. Do not use that interval as a delivery clock.

Diagram for Swap USDT from Arbitrum One to ETH on BNB Chain — USDT leaves Arbitrum One. ETH is what can arrive on BNB Chain.

A BEP-20 that wears the ETH ticker

0x2170Ed0880ac9A755fd29B2688956BD959F933F8 is Binance-Peg Ethereum Token. Holding it is not the same as holding ETH on Ethereum, and it is not WETH at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. You cannot pay a BNB Chain fee with it. You cannot deposit it to an exchange ETH address on Ethereum and expect credit. The chain id on the deposit page has to be 56, and the token contract has to match, or the deposit instructions are for a different asset.

Tether in, ether exposure out

Six-decimal USDT goes in. The pegged token comes out at whatever price the quote shows. That price moves. The minimum is your bound. Arbitrum Tether is not BSC USDT at 0x55d398326f99059fF775485246999027B3197955, so do not expect the same contract to appear on BscScan as both sides. How cross-chain bridges work is the chain-change primer. The asset change is separate: you are not bridging USDT unchanged.

Fee token on the source stays ETH

Even though the destination ticker says ETH, the fee you pay at the start is native ETH on Arbitrum One, not the BEP-20. Keep that gas balance. USDT may need an approval on chain id 42161. After arrival, budget BNB if you will touch the pegged token. An account with only 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 cannot sign its own transfer.

Wrong for native BNB and for real mainnet ETH

If you needed gas on BNB Chain, you wanted the sentinel, not this BEP-20. If you needed ETH on chain id 1, this page never goes there. If you needed USDC on BSC, the pegged USDC contract is a different address. If your USDT is not 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9, or the wallet says Nova, stop.

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 Arbitrum One to ETH on BNB Chain?

Tether on the way out is 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9. Arbiscan, Arbitrum One, chain id 42161, not Nova.

Will an Ethereum exchange deposit credit this ETH?

Only if that deposit is specifically for Binance-Peg ETH on BNB Chain, contract 0x2170Ed0880ac9A755fd29B2688956BD959F933F8. A normal Ethereum ETH deposit address expects native ETH on chain id 1. Sending a BEP-20, or expecting this route to create mainnet ETH, is the wrong use. Read the exchange's chain and contract.

Is this the WETH contract from Ethereum?

No. Ethereum WETH is 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. The output here is 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 on chain id 56. You spend Tether at 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 on Arbitrum One. Native gas on BNB Chain is BNB, not this peg. Confirm the BEP-20 on BscScan before you sign. Confirm that address on the explorer before you sign, and refresh the quote if it has expired.

What gas do I need on each side?

ETH on Arbitrum One, chain id 42161, to sell USDT. BNB on BNB Chain afterward if you want to move the pegged ETH. The route does not deliver the BNB sentinel. About 3 seconds is a block interval on chain id 56. It is not a promise that the BEP-20 is already in the wallet.

Live execution

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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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