Arbitrum One
Leading Ethereum L2 with the largest DeFi TVL among rollups. Strong developer tooling and an active DAO governance system.
L2
ETH
Chain ID: 42161
Network Specifications
- Consensus
- Optimistic Rollup
- Block Time
- ~0.25 seconds
- Typical Gas Cost
- <$0.10
- Native Token
- ETH
Best For
DeFi power users, trading, gaming
Compatible Wallets
7 wallets support Arbitrum One
Frequently Asked Questions
What is Arbitrum One used for?+
Arbitrum One is a L2 blockchain used for decentralized applications, token transfers, and smart contracts. Different users choose Arbitrum One for different reasons — check the "Best For" section above to see where it excels compared to other networks.
How much does it cost to use Arbitrum One?+
Typical transaction fees on Arbitrum One are <$0.10. Fees vary based on network congestion and transaction complexity. Simple transfers cost less than smart contract interactions like swaps or mints. Use our Gas Fee Estimator tool for current estimates.
Which wallets work with Arbitrum One?+
Multiple wallets support Arbitrum One — see the "Compatible Wallets" section above for the full list. For EVM-compatible chains, MetaMask and Rabby are popular choices. Check our Wallet Compatibility Checker for detailed comparisons.
Is Arbitrum One secure?+
Arbitrum One uses Optimistic Rollup for security. As a Layer 2, it inherits security from Ethereum while adding its own validation layer. No blockchain is immune to bugs or attacks, but Arbitrum One has an established track record.
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