Cross-chain · Ethereum → Arbitrum One

Swap DAI from Ethereum to USDT on Arbitrum One

Swap DAI from Ethereum to USDT on Arbitrum One. Someone paying Tether on chain 42161 can spend Maker DAI from Ethereum and receive that USDT.

You approve Maker DAI at 0x6B175474E89094C44Da98b954EedeAC495271d0F on Etherscan, 18 decimals. You receive Tether at 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 on Arbiscan, 6 decimals. Ethereum Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 does not increase. Issuers differ: Maker on the way out, Tether on the way in. The network is Arbitrum One, not Nova. Gas to leave is ETH on chain id 1. Gas afterward is ETH on chain id 42161, and the USDT cannot pay it. Tell the payee to watch Arbiscan on chain id 42161. An Etherscan tab open to Ethereum Tether will stay flat for the whole transfer. Confirm the USDT contract on Arbiscan before you pay.

Diagram for Swap DAI from Ethereum to USDT on Arbitrum One
DAI leaves Ethereum. USDT is what can arrive on Arbitrum One.

Arbiscan USDT is the payment asset

Expect 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9. A payee who printed the Ethereum USDT address will not see this transfer on Etherscan. Tell them the network is Arbitrum One, chain id 42161. The decimal change from 18 to 6 is a display detail, not a second payment.

DAI for Ethereum Tether is a local swap

This route is the wrong tool when the invoice is on mainnet. Sell Maker DAI for 0xdAC17F958D2ee523a2206206994597C13D831ec7 and stop. Bridge only when the Tether contract is the Arbitrum one. A chain id 1 pool already covers the local job.

ETH on the way out and on the way in

Chain id 1 blocks about every 12 seconds and charges ETH. DAI cannot pay it. Chain id 42161 charges its own ETH. How cross-chain bridges work is why each chain keeps its own fee. The received USDT is an ERC-20 on Arbiscan.

Approve only the Maker contract

0x6B175474E89094C44Da98b954EedeAC495271d0F is the DAI this route can spend. Confirm it on Etherscan, then confirm the USDT string on Arbiscan after the wallet is on Arbitrum One. A Nova wallet will not show the credit.

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 DAI from Ethereum to USDT on Arbitrum One?

You approve Maker DAI at 0x6B175474E89094C44Da98b954EedeAC495271d0F on Etherscan, 18 decimals. You receive Tether at 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 on Arbiscan, 6 decimals.

Will Ethereum USDT increase?

No. Ethereum Tether stays at 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Etherscan. The new tokens are 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 on Arbiscan. Look there after you switch to Arbitrum One, chain id 42161. Both can be labeled USDT. The address is how you tell the payment landed.

Why do the decimals change?

Maker DAI uses 18 decimals. Arbitrum USDT uses 6, like Ethereum Tether. If the wallet still uses DAI's decimals, the USDT row looks wrong by many zeros. Re-import 0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9 from Arbiscan. Trust the quote you sign. This page does not set it.

What gas do I need?

ETH on Ethereum to spend the DAI, because chain id 1 charges ETH. ETH on Arbitrum One to move the USDT afterward, because chain id 42161 charges ETH and the two balances are separate. The route delivers neither gas coin. Blocks on Ethereum are about 12 seconds.

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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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