Cross-chain · Arbitrum One → BNB Chain

Swap WETH from Arbitrum One to USDT on BNB Chain

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

The sold contract is 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. Confirm WETH on Arbiscan, chain id 42161, not Nova. Pay gas in native ETH. The bought contract is 0x55d398326f99059fF775485246999027B3197955 on BNB Chain, eighteen decimals. Confirm it on BscScan. It is not Ethereum's six-decimal Tether and not Arbitrum Tether. Chain id 56, fee token BNB, blocks about 3 seconds. None of those facts is a promised credit time.

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

Do not import the wrong USDT

Three Tether-like addresses show up in this corridor. Arbitrum USDT is 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9. Ethereum USDT is 0xdAC17F958D2ee523a2206206994597C13D831ec7. This route can credit only 0x55d398326f99059fF775485246999027B3197955 on chain id 56. Eighteen decimals, BscScan. If an exchange deposit says ERC-20 USDT on Ethereum, it is not asking for this balance. Matching the ticker is not enough.

WETH allowance, ETH fee

Approve 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 if the allowance is empty. The fee is the sentinel balance on Arbitrum One. Selling WETH does not reduce the need for that fee. If you unwrap WETH to pay gas, you may unwrap the inventory you meant to sell. Leave both rows funded: a little ETH, and the WETH you want to trade.

Price, then a stranded token if BNB is missing

Wrapped ether into a dollar token is a sale. Read the minimum USDT and refresh when the quote expires. After the credit, BNB is what moves the token. This page does not deliver the sentinel on chain id 56. How cross-chain bridges work covers the hop. It does not add a gas coin you did not select.

Wrong for native ETH sellers and for USDC buyers

If the balance is unwrapped ETH, use the ETH route, not this one. If you wanted Binance-Peg USDC, native BNB, or pegged ETH, the output address will not match. If you wanted USDT to remain on Arbitrum One, you should not be looking at BscScan at all. Nova will not line up with the WETH contract this page spends.

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 USDT on BNB Chain?

The sold contract is 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. Confirm WETH on Arbiscan, chain id 42161, not Nova.

Which USDT contract is the destination?

0x55d398326f99059fF775485246999027B3197955 on BNB Chain, eighteen decimals. Check BscScan. Arbitrum Tether and Ethereum Tether are different addresses and are not the credit. You spend WETH at 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 on chain id 42161. A deposit page that names another USDT is the wrong destination for this balance. Confirm the address on the explorer before you sign.

Is WETH going to arrive as pegged ETH?

No. Pegged ETH is 0x2170Ed0880ac9A755fd29B2688956BD959F933F8. This output is the USDT contract above. Starting with wrapped ether does not mean the route preserves an ETH ticker. If you wanted that BEP-20, open the route that names it. Native BNB is the sentinel, and it is not the output either.

What two balances does Arbitrum need?

WETH to sell, and native ETH to pay gas. The sentinel 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE is only the fee on chain id 42161. Without it, the approval of 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 cannot go out. On the far side you will later want BNB, which this USDT credit does not include. Nova is not the source.

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