Cross-chain · Ethereum → Arbitrum One

Swap USDT from Ethereum to USDC on Arbitrum One

Swap USDT from Ethereum to USDC on Arbitrum One. Wallets that need Circle's native USDC on chain 42161 spend Ethereum Tether and receive that dollar.

You send Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Etherscan, 6 decimals. You receive 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 on Arbiscan, Circle's native USDC on Arbitrum One, also 6 decimals. The older bridged USDC.e at 0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8 is a different contract and is not this output. The chain is Arbitrum One, id 42161, not Nova. Gas to leave is ETH on Ethereum. Gas after arrival is ETH on Arbitrum One, a separate balance. If an app printed the USDC.e address, stop. This route credits only the native contract on Arbiscan, and the bridged dollar will not move.

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

Native USDC is not USDC.e

Apps on Arbitrum One split the dollar. Circle's native token is 0xaf88d065e77c8cC2239327C5EDb3A432268e5831. Bridged USDC.e is 0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8. This route pays the native contract. If an allowlist prints the USDC.e address, these dollars will not credit. Read it on Arbiscan before you deposit.

Tether is what leaves Ethereum

Approve 0xdAC17F958D2ee523a2206206994597C13D831ec7 only. That approval burns ETH on chain id 1. Circle USDC on Ethereum, 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48, is not the token you send and not the token you receive. Blocks on Ethereum are about 12 seconds.

Stay on Ethereum to flip the stable

This route is the wrong tool when both dollars should remain on mainnet. USDT and Circle USDC already have a chain id 1 book. Bridge when the receiving contract is native USDC on Arbitrum One. Arbitrum One is where that contract is spent, and where a separate ETH balance pays the fee.

ETH on the L2 after a 6 decimal dollar

The received USDC cannot pay gas. Chain id 42161 charges ETH. That ETH is not the ETH sitting on Ethereum. Keep some on the Arbitrum One wallet or the new dollars wait. Nova is the wrong place to look for them.

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 USDT from Ethereum to USDC on Arbitrum One?

You send Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Etherscan, 6 decimals. You receive 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 on Arbiscan, Circle's native USDC on Arbitrum One, also 6 decimals.

Which USDC address should I watch on Arbitrum?

0xaf88d065e77c8cC2239327C5EDb3A432268e5831 on Arbiscan. That is Circle's native USDC on Arbitrum One. USDC.e at 0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8 will not increase because of this route. If the wallet shows two USDC rows, import the native contract. Chain id 42161 is the network, not Nova.

What do I approve on Ethereum?

Tether at 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Etherscan. Keep ETH in that wallet for gas on chain id 1. USDT cannot pay the fee, and the approval may be its own transaction. Blocks are about 12 seconds. The USDC appears only after you switch the wallet to Arbitrum One.

Is this the same as USDT to USDC on Ethereum?

The tickers match and the contracts do not. On Ethereum the USDC would be 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48. This route delivers 0xaf88d065e77c8cC2239327C5EDb3A432268e5831. Use the mainnet pool when the dollars should stay on chain id 1. Use this page when Arbitrum One is where the USDC has to sit.

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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