Transferring tokens from Polygon to Arbitrum is one of the most popular cross-chain operations in the DeFi ecosystem. Both networks offer low fees and fast transactions, but each provides access to different protocols and yield opportunities. This guide walks you through everything you need to know about bridging from Polygon to Arbitrum.
Why Bridge from Polygon to Arbitrum?
Polygon and Arbitrum are both Ethereum Layer-2 networks, but they serve different purposes and host different ecosystems. Moving tokens from Polygon to Arbitrum gives you access to Arbitrum's unique suite of DeFi protocols, NFT platforms, and decentralized applications that may not be available on Polygon.
- Access Arbitrum-native DeFi protocols and higher yield opportunities
- Participate in Arbitrum governance using ARB tokens
- Explore NFT markets and gaming dApps exclusive to Arbitrum
- Take advantage of Arbitrum's optimistic rollup security model
- Move stablecoins for arbitrage or liquidity provision opportunities
Step-by-Step: Bridging from Polygon to Arbitrum
- Prepare Your Wallet: Ensure you have a compatible Web3 wallet such as MetaMask, Coinbase Wallet, or WalletConnect-compatible wallet. Make sure your wallet is set to the Polygon network.
- Have MATIC/POL for Gas: You will need a small amount of MATIC (POL) to pay gas fees on the Polygon network when initiating the bridge transaction.
- Connect to the Bridge: Navigate to the Polygon Arbitrum Bridge and click "Connect Wallet." Approve the connection request in your wallet.
- Select Source and Destination: Set Polygon as the "From" network and Arbitrum One as the "To" network.
- Choose Your Token and Amount: Select the token you wish to bridge (USDC, USDT, ETH, etc.) and enter the amount. The bridge will show you the estimated output amount and fees.
- Set Spending Approval: For ERC-20 tokens, you may need to approve the bridge contract to spend your tokens. This is a one-time approval per token.
- Confirm the Transaction: Review all details carefully and click "Bridge" to confirm. Approve the transaction in your wallet.
- Wait for Completion: Most Polygon to Arbitrum bridge transfers complete within 60 seconds to a few minutes, depending on network congestion.
- Add Arbitrum to Your Wallet: If Arbitrum One is not already in your wallet, you may need to add the network. Your bridged tokens will appear once the transfer is complete.
Important: When bridging ETH from Polygon to Arbitrum, be aware that ETH on Polygon is wrapped (WETH). Some bridges will automatically unwrap it to native ETH on Arbitrum, but others may not. Verify your output token before confirming.
Polygon Arbitrum Bridge
Polygon to Arbitrum Bridge Fees
The cost of bridging from Polygon to Arbitrum depends on several factors:
- Polygon Gas Fees: Typically very low — often under $0.01 — paid in MATIC/POL
- Bridge Protocol Fee: Most bridges charge between 0.05% and 0.2% of the transfer amount
- Arbitrum Destination Fee: A small fee for receiving the transaction on Arbitrum
- Slippage: For non-stablecoin transfers, factor in potential price slippage
Stablecoin transfers (USDC to USDC, USDT to USDT) between Polygon and Arbitrum are especially cost-effective, often completing with total fees under $0.05.
Most Popular Tokens to Bridge: Polygon to Arbitrum
- USDC from Polygon to Arbitrum — the most common stablecoin bridge route
- USDT from Polygon to Arbitrum — transfer Tether between L2 networks
- ETH (WETH) from Polygon to Arbitrum — move Ethereum to access Arbitrum DeFi
- MATIC/POL to Arbitrum — convert Polygon's native token for use on Arbitrum
- DAI from Polygon to Arbitrum — bridge the decentralized stablecoin
Always double-check that you have sufficient gas tokens on the source chain before initiating a bridge transaction. On Polygon, you need MATIC/POL for gas. Once your tokens arrive on Arbitrum, you'll need ETH to pay for transactions on that network.
