Cross-chain · Arbitrum One → BNB Chain

Swap WETH from Arbitrum One to BNB on BNB Chain

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

Sell WETH at 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. Arbiscan, chain id 42161, not Nova. It is an ERC-20, so allowance may be required. The fee is native ETH, sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on Arbitrum One. The same sentinel on BNB Chain means the BNB you can receive, chain id 56. BscScan shows that as a balance, not as Binance-Peg ETH. Blocks are about 3 seconds. That is not a schedule for the credit.

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

Wrapped ether in, the other chain's gas out

This route is for a wallet that holds WETH on Arbitrum One and needs BNB to operate on chain id 56. You do not receive 0x2170Ed0880ac9A755fd29B2688956BD959F933F8. You do not receive BSC USDT or pegged USDC. The output can pay fees on BNB Chain once it arrives. It cannot pay the Arbitrum fee that starts the trip. Keep a little native ETH beside the WETH.

Allowance stays on the WETH contract

Approve 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 on chain id 42161 if asked. Do not approve a sentinel address. Native BNB is not an ERC-20 you must permission on the way in. If the wallet is on Nova, the Arbiscan contract for One will not match the network you are signing. Change networks before the approval, not after a failed simulation.

No fixed WETH to BNB rate

Both assets move. The minimum BNB on the quote is the floor, and it expires. Eighteen decimals on each side still do not mean equal amounts. BNB Chain is where the gas coin will be useful. Read the destination chain id as 56 before you send the receive address from a form that defaults to Ethereum.

Wrong if you wanted the ETH peg to survive

People who need Binance-Peg ETH should not be here. People holding native ETH rather than WETH should not be here. People who wanted a stablecoin payout should not be here. A local unwrap of WETH on Arbitrum One ends in ETH on chain id 42161 and never produces BNB. That unwrap is a different button.

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 Arbitrum One to BNB on BNB Chain?

Sell WETH at 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. Arbiscan, chain id 42161, not Nova. XAUConnect compares live routes and lets your own wallet sign.

Does this deliver Binance-Peg ETH or BNB?

Native BNB. The destination marker is 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on chain id 56. Pegged ETH is 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 and is not the credit. You spend WETH at 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. BscScan shows BNB as a balance. About 3 seconds is a block interval, not a delivery promise. Confirm the address on the explorer before you sign.

Why do I still need ETH if I am selling WETH?

Gas on Arbitrum One is native ETH, not WETH. The sentinel on chain id 42161 pays the approval and the swap. If that row is empty, 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 cannot move. The BNB you receive later lives on the other chain and cannot fund this signature. Nova is not a substitute gas network.

Is unwrapping WETH enough to get BNB?

No. Unwrapping 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 returns ETH on Arbitrum One only. This page is what can credit native BNB on chain id 56. If you unwrap first, you then hold the gas coin, and you would need the native ETH route instead of this WETH route. Pick one path and match the balance you still have.

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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