Bridge Ethereum to Arbitrum: Complete Guide to Lower Gas Fees

Arbitrum is the largest Ethereum Layer 2 by total value locked. It runs the same smart contracts as Ethereum but processes transactions off-chain, settling them in batches. The result: gas fees that are 10-100x lower while inheriting Ethereum security.

A swap that costs $5-20 on Ethereum mainnet costs $0.05-0.50 on Arbitrum. For anyone who trades, farms or uses DeFi regularly, the math is simple.

Arbitrum also supports the same tokens as Ethereum — ETH, USDC, USDT, WBTC and thousands of ERC-20s — so nothing is lost in the move.

ETH is the most commonly bridged asset to Arbitrum. It arrives as native ETH on Arbitrum, ready to use for gas and trading.

USDC and USDT bridge as their Arbitrum-native versions. USDC on Arbitrum benefits from Circle CCTP, which burns USDC on Ethereum and mints native USDC on Arbitrum — no wrapped tokens involved.

WBTC, LINK, UNI and other ERC-20 tokens can also be bridged, though the route and time may vary depending on the bridge protocol used.

Open app.aexi.cc and connect your wallet. Set the source token (ETH or USDT) on Ethereum and the destination to the same token on Arbitrum.

AEXI evaluates bridge protocols in real time and returns the route with the lowest total cost — bridge fee plus gas on both chains. Review the quoted amount, estimated time and fees, then confirm.

After signing, the request page tracks the transfer. Ethereum to Arbitrum bridges typically complete in 2-5 minutes, depending on the number of confirmations required.

ETH from Ethereum to Arbitrum: 2-5 minutes, total cost $1-5. USDC via CCTP: 3-8 minutes, total cost $2-6. USDT: 2-5 minutes, cost $1-5 depending on the bridge.

L2-to-L2 routes (say, Arbitrum to Base) are faster and cheaper — often under 2 minutes and under $1. The slowest leg is always the Ethereum confirmation, so bridging from an L2 avoids that bottleneck entirely.

AEXI shows the exact cost breakdown before you confirm, so there are no surprises.