Cross-chain · Base → BNB Chain

Swap ETH from Base to BNB on BNB Chain

Swap ETH from Base to BNB on BNB Chain. Native ETH leaves Base, and native BNB is what arrives on chain 56.

Both sides use the placeholder 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, and that string is not one asset. On Base, chain 8453, it means ETH, the L2 gas coin, which you can see on Basescan as the account balance. On BNB Chain, chain 56, it means BNB, which BscScan shows as the account balance. Blocks there are about 3 seconds. Pegged ETH at 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 is a BEP-20 and is not what this quote buys. Leave some Base ETH for the fee.

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

One label, two coins

Wallets reuse 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE for whatever the chain uses as gas. If you copy that string into a token list you will not find a contract, because native coins are not ERC-20s. The chain id in the wallet is the real selector: 8453 sells ETH, 56 receives BNB. Signing while the wallet still shows Ethereum mainnet, chain 1, would be a different trade entirely.

Do not drain Base

This route sells the same coin that pays the Base fee. A max click can fail before any bridge message is sent. There is no approval step for native ETH. If your balance is WETH, this page will not see it. Unwrap on Base first, or use the WETH-to-BNB route, which is an allowance plus a different quote.

Pegged ETH is the usual mix-up

Someone asking for ETH on BNB Chain often means 0x2170Ed0880ac9A755fd29B2688956BD959F933F8. That token cannot pay fees. Someone asking for ETH on Ethereum means the gas coin on chain 1, which this route does not deliver. Someone asking for USDT or USDC should not be on this page at all. WBTC is unrelated, and it is not native bitcoin.

How to confirm you bought gas

After the Base debit, open the account on BscScan and read the BNB line. A token transfer of pegged ETH means you used another route. How cross-chain bridges work covers why the hashes differ. Three second blocks describe chain 56, not the bridge wait. Reject the quote if the minimum BNB is too small.

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 Base to BNB on BNB Chain?

Why do both tokens show the same address?

Interfaces use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE as a stand-in for the native gas coin of whichever chain is selected. On Base that coin is ETH. On BNB Chain it is BNB. The string is not a contract on Basescan or BscScan. Chain ids 8453 and 56 keep the balances apart.

Is the BNB I receive able to pay fees?

Yes. BNB is the gas coin on chain 56, and blocks there are about 3 seconds. The amount is whatever the quote delivers, not a reserved fee budget. You still had to keep some ETH on Base, chain 8453, to pay for the send. That Base remainder does not migrate.

I wanted the ETH token on BNB Chain, not BNB. Is this it?

No. The BEP-20 named ETH is 0x2170Ed0880ac9A755fd29B2688956BD959F933F8 on BscScan. It is pegged ETH, not WETH, and it cannot pay gas. This page delivers native BNB. If a dapp asked for that pegged contract, switch routes before you sign. Native BNB is the gas coin, and pegged ETH will not run a transaction on chain 56.

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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