Cross-chain · Arbitrum One → BNB Chain

Swap ETH from Arbitrum One to BNB on BNB Chain

Swap ETH from Arbitrum One to BNB on BNB Chain. Native ETH leaves Arbitrum One and native BNB arrives on BNB Chain.

Both sides use the sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, and they are not the same coin. On Arbitrum One, chain id 42161, it is ETH, the asset you sell and the fee you must reserve. Arbiscan is the source explorer. Not Nova. On BNB Chain, chain id 56, the sentinel is BNB, the gas coin. BscScan shows a balance, not a BEP-20. Blocks there are about 3 seconds. That does not time the bridge. Pegged ETH is not involved.

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

One marker, two gas coins

Quotes reuse 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE for whatever native coin the chain uses. Here the source native is ETH and the destination native is BNB. You are not moving ETH onto BNB Chain as ETH. Binance-Peg ETH at 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 would be that BEP-20, and this page does not deliver it. If a form asks you to paste the sentinel as a token address, the form is the wrong tool.

Do not sell the fee down to zero

The ETH you sell is the ETH that pays for the signature. Leave a cushion on chain id 42161. WETH is not a stand-in. After BNB arrives, that new balance can pay later fees on chain id 56, which is often why people pick this pair. It cannot reach backward and pay the Arbitrum transaction. Order of operations matters.

Two volatile assets, no fixed ratio

ETH and BNB both move. The minimum BNB is the number you are accepting, and it dies when the quote dies. Eighteen decimals on both natives still do not mean one ETH becomes one BNB. How cross-chain bridges work explains the hop. The price check is still yours, on this quote, before the signature.

Wrong if the ticker ETH must survive

Anyone who needs the ETH peg on BNB Chain, or WETH on Ethereum, or a stablecoin, is on the wrong page. Anyone on Nova is on the wrong network. Anyone holding only wrapped ether on Arbitrum has the wrong balance selected. Anyone who thinks the identical sentinel hex proves the coins are the same object has misread the chain id.

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 Arbitrum One to BNB on BNB Chain?

Both sides use the sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, and they are not the same coin. On Arbitrum One, chain id 42161, it is ETH, the asset you sell and the fee you must reserve.

If both addresses are 0xEeee, am I bridging ETH as ETH?

No. The sentinel means native gas on whichever chain you are looking at. Source gas is ETH on Arbitrum One, chain id 42161. Destination gas is BNB on chain id 56. Pegged ETH, 0x2170Ed0880ac9A755fd29B2688956BD959F933F8, is the BEP-20 people confuse with this output. BscScan will not show a token contract for the sentinel.

Should I keep any ETH on Arbitrum?

Yes. Enough to pay the fee. The route sells native ETH, so the entire balance cannot go. WETH at 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 is not spent and does not pay gas. Nova is not chain id 42161. The BNB you receive later is only useful on BNB Chain.

Is a 3 second block the wait I should expect?

No. About 3 seconds is how often BNB Chain produces a block. It is not a schedule for this route, and Arbitrum's faster soft blocks are not one either. If the quote expires, get another and read the new minimum BNB. The price between ETH and BNB can move while you wait.

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