Bridge from Arbitrum to Base
Move USDC, ETH, USDT from Arbitrum to Base at the best available rate.
Typical time — usually well under a few minutes — often close to a minute when both chains are quiet, though busy periods can push it toward the upper end.
Quotes include a 0.5% service fee that supports Bridgeline. Swaps execute through LI.FI’s audited smart contracts — this site never holds your funds.
Four steps, all signed in your own wallet.
- 01
Connect your wallet
Connect inside the bridge box. That's the only place Bridgeline ever asks — this site never sees your keys.
- 02
Pick your token and amount
Choose what you're moving, from which chain to which chain, and how much.
- 03
Review the quote and fee
You approve the exact amount in your own wallet, with the full fee shown. Cancel any time before you sign.
- 04
Confirm and track
Sign the transaction and watch it settle on-chain through LI.FI's audited contracts. Bridgeline is never in the middle.
Bridging Arbitrum to Base
The direct route from Arbitrum to Base skips the older path of withdrawing to Ethereum first and bridging down again — a detour that means paying mainnet gas twice and waiting out a withdrawal window. A liquidity bridge moves your funds L2-to-L2 in a single step, which for most transfers between these two rollups lands faster and cheaper than a native bridge or a centralized-exchange round-trip. This page covers what to expect moving from Arbitrum's DeFi-heavy environment onto Base.
Most people making this move are chasing something specific on Base rather than leaving Arbitrum behind. Arbitrum One holds the deepest DeFi liquidity of any L2 — GMX, Uniswap, and a large perpetuals scene — so it tends to be where positions get built, while Base, as Coinbase's OP-Stack chain, leans toward consumer apps, an active memecoin scene, and Aerodrome as its main liquidity hub. A common reason to bridge this direction is to reach a Base-native token or an Aerodrome pool that has no equivalent on Arbitrum, or to sit closer to Coinbase's direct on-ramp for easier top-ups. Gas on both sides is usually only a few cents, so the cost of moving is typically dominated by the bridge's own fee and spread rather than by network fees. As of publication this is a routine, well-served route with plenty of liquidity behind it.
Arbitrum
Source- Gas
- Usually a few cents per swap.
- Speed
- Sub-second confirmations; optimistic-rollup settlement to Ethereum.
- Ecosystem
- The deepest DeFi liquidity of any L2 — perpetuals, GMX, and major DEXs.
Base
Destination- Gas
- Typically a few cents per swap.
- Speed
- About 2-second blocks; an OP-Stack rollup that settles to Ethereum.
- Ecosystem
- Coinbase's layer 2 — consumer apps, easy fiat on-ramps, and an active memecoin scene.
Stay safe while bridging
- Approve only what you’re bridging. The widget requests finite token approvals by default — there’s no need to grant an unlimited allowance.
- Check the URL every time. Bookmark this site and confirm the address bar before connecting a wallet.
- Start small for a new route. A tiny test transfer confirms everything works before you move the full amount.
Moving a large amount? Consider a hardware wallet
A hardware wallet keeps your private keys offline, so a compromised browser or a malicious approval can’t drain your funds on its own. It’s the single biggest security upgrade for anyone holding meaningful value on-chain.
Official links, provided for your security.
Questions about Arbitrum → Base
Is it cheaper to bridge straight from Arbitrum to Base, or to route through Ethereum first?
For most transfers, going directly L2-to-L2 is cheaper. Routing through Ethereum means paying mainnet gas on both the withdrawal and the re-bridge, and those fees can easily dwarf the value of a small transfer. A direct liquidity bridge keeps you on low-cost rollup rails the whole way, so you mostly pay Arbitrum's few-cent gas plus the bridge fee. The through-Ethereum path tends to make sense only for very large amounts where you specifically want the security of the native bridges and don't mind the mainnet cost or the withdrawal wait.
How long does an Arbitrum to Base transfer usually take?
Liquidity bridges typically settle this route in well under a few minutes, often close to a minute when both chains are quiet. Arbitrum confirms in under a second and Base produces blocks roughly every two seconds, so the wait is usually the bridge confirming your source deposit rather than either chain being slow. Busy periods or larger amounts can push it toward the upper end of that range.
Will I have ETH for gas once I land on Base?
Both chains use ETH for gas, so if you bridge ETH you'll arrive with something to spend. If you only move a stablecoin like USDC, plan to keep or bridge a small amount of ETH as well, since you'll need it to make your first transaction on Base. Some bridges offer a small gas top-up on arrival, which is worth checking if you're sending your entire ETH balance across.
Is the USDC I receive on Base the same as native Arbitrum USDC?
Both Arbitrum and Base have Circle's native USDC, and a good bridge will deliver native USDC on Base rather than a wrapped or bridged variant. It's worth confirming the exact token the route outputs before you send, because a bridged placeholder version can be harder to use in Base apps like Aerodrome. If you're unsure, check the destination token's contract address against Circle's published Base address.
What makes up the actual cost of bridging this route?
Three things: the small Arbitrum gas fee to start the transfer, the bridge's own service fee, and any price spread on the token being moved. Because both Arbitrum and Base run gas at a few cents, the bridge fee and spread are usually the larger part of the bill here. Comparing a couple of bridge quotes for the same token and amount is the simplest way to see the all-in cost before committing.
What should I double-check before sending on this route?
Confirm your wallet is set to the Base network as the destination and that the receiving address is one you control there. If it's your first time on this route, send a small test amount first, then move the rest once it arrives as expected. Stick to bridges with a public track record and audited contracts, and be cautious of any interface reached through an unsolicited link.