Cross-chain · Base → BNB Chain
Swap ETH from Base to USDT on BNB Chain
Swap ETH from Base to USDT on BNB Chain. Native ETH leaves Base, and 18 decimal USDT arrives on BNB Chain.
The ETH you sell is the gas coin on Base, chain 8453, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. Basescan shows that as the account balance. Keep enough ETH to pay the fee. There is no token approval for native ETH. The USDT you receive is 0x55d398326f99059fF775485246999027B3197955 on BscScan, chain 56, where blocks are about 3 seconds. It uses 18 decimals. Ethereum's Tether, 0xdAC17F958D2ee523a2206206994597C13D831ec7, uses 6. Gas after arrival is BNB, not ETH and not USDT.
You are spending the Base fee coin
Eighteen decimal USDT versus the one on Ethereum
BNB is still missing unless you add it
Close this page if the order says otherwise
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 USDT on BNB Chain?
The ETH you sell is the gas coin on Base, chain 8453, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. Basescan shows that as the account balance.
Is this the 6 decimal USDT from Ethereum?
No. Ethereum Tether is 0xdAC17F958D2ee523a2206206994597C13D831ec7 and has 6 decimals. This route delivers 0x55d398326f99059fF775485246999027B3197955 on BNB Chain, chain 56, with 18 decimals. Check that on BscScan. A shared ticker does not make the contracts interchangeable for payments or for scripts. Open the decimals field before you copy an amount from a mainnet habit.
Do I approve ETH on Base before this swap?
No. Native ETH is the gas coin, marked 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE, and you send it rather than approve it. You do have to leave enough on chain 8453 to pay the fee. An approval popup means the wallet thinks you are spending an ERC-20 such as WETH, which is a different route.
Will the USDT pay fees once it arrives?
No. Fees on BNB Chain are BNB. USDT is a BEP-20. Blocks are about 3 seconds when BNB is available to spend. The ETH you sold from Base does not refill that BNB balance. Fund BNB before you try to move the dollars off the account.
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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