Cross-chain · Base → BNB Chain

Swap ETH from Base to USDC on BNB Chain

Swap ETH from Base to USDC on BNB Chain. Native ETH leaves Base, and pegged USDC arrives on BNB Chain.

The ETH you sell is the gas coin on Base, chain 8453, written as 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. Basescan shows it on the account, not as a token. Leave some of it for the fee or the transaction cannot be sent. The USDC you receive is 0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d on BscScan. That is Binance-pegged USDC with 18 decimals, not Circle's 6 decimal USDC on Ethereum or Base. BNB Chain is chain 56, blocks about 3 seconds, and the gas coin there is BNB.

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

Pegged USDC is not the Circle contract you may know

Circle's Base USDC is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 and uses 6 decimals. Circle's Ethereum USDC is 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48, also 6 decimals. The token this route credits uses 18 decimals and a Binance peg. A treasury whitelist copied from Ethereum will not recognize 0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d. Check the decimals on BscScan before you report the balance to accounting.

You are selling the Base fee token

There is no ERC-20 approval for native ETH. There is a requirement to keep enough ETH to pay the Base fee. If you type the entire balance, the wallet should warn you. WETH at 0x4200000000000000000000000000000000000006 is not accepted by this page. Unwrap first if that is all you hold.

Four reasons to close the tab

Close it if you need Circle's own USDC contract. Close it if you need Tether at 0x55d398326f99059fF775485246999027B3197955. Close it if you need BNB for gas and thought USDC would cover fees. Close it if you meant to buy ETH on Ethereum rather than sell ETH from Base. A BNB Chain app that specifically wants this pegged dollar is the case that fits.

Destination gas is BNB

USDT and USDC on chain 56 cannot pay fees, and neither can the ETH you no longer hold on Base. Trade on BNB Chain is the right place to remember that BNB is mandatory. BscScan is the explorer for the credit. Three second blocks are the chain, not the bridge. Do not sign a minimum you dislike.

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 USDC on BNB Chain?

The ETH you sell is the gas coin on Base, chain 8453, written as 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. Basescan shows it on the account, not as a token.

Is this the same USDC Circle issues on Base?

No. Base Circle USDC is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 and has 6 decimals. This route delivers 0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d, an 18 decimal pegged token, which you check on BscScan. A whitelist built for Circle's contract will miss it. Accounting that assumes 6 decimals will also misread the 18 decimal balance on BscScan.

Do I approve ETH before selling it?

No. Native ETH on Base is the gas coin, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, and it is sent rather than approved. You must leave enough to pay the fee on chain 8453. If the wallet asks you to approve WETH, the selected input is the wrapper, which is a different route.

Can the USDC I receive pay BNB Chain gas?

No. Gas on chain 56 is BNB. Pegged USDC is a BEP-20. Blocks are about 3 seconds when you do have BNB to spend. Bring BNB to the account before you try to move the dollars. The ETH sold from Base does not become that BNB.

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.

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