To bridge ETH to Polygon, send ETH from Ethereum mainnet through the official Polygon Portal or a third-party aggregator, and make sure you end up holding a small amount of POL, because POL pays gas on Polygon and your bridged ETH cannot. The ETH arrives as an ERC-20 token you can hold, swap or lend, but every one of those actions costs POL.
Key takeaways
- Gas is POL, not ETH. POL replaced MATIC in the migration that began in September 2024.
- Your bridged ETH lands as an ERC-20 token, so it is an asset on Polygon rather than fuel.
- An aggregator like Jumper can deliver ETH and a little POL in one route, which is the cleanest fix.
- Exits clear through a checkpoint, typically within hours, not the seven days an optimistic rollup takes.
The one thing that makes Polygon different
On Arbitrum and Base the ETH you bridge is also the gas token, so a single transfer leaves you ready to transact. Polygon splits those roles. POL is the native token and the only thing that pays gas. ETH sent across the bridge arrives as an ERC-20 representation, which behaves like any other token on the network.
The failure mode is specific and common: funds land successfully, the balance shows in the wallet, and nothing can be done with them because there is no POL to pay for the transaction that would move or swap them. Getting out of that state means sending POL in from somewhere else, which is an extra trip nobody plans for.
So decide how you are getting POL before you move any ETH. Two routes work:
- Use an aggregator that can include a small amount of POL in the same transfer.
- Buy a little POL separately, on an exchange or a wallet’s swap feature, and withdraw it to Polygon first.
If you are used to bridging to rollups, read the Base guide for the contrast. On Base the ETH you send is your gas, and none of this applies.
What you need before you start
- An Ethereum wallet such as MetaMask or Rabby holding the ETH you want to move, plus extra ETH for Ethereum gas on the way out.
- A concrete plan for POL, settled before you start.
- Around fifteen minutes. Most deposits finish inside half an hour.
Using the official Polygon bridge
The official route runs through the Polygon Portal, which fronts both the long-standing PoS bridge and newer AggLayer routing. It charges no protocol fee, so your cost going in is Ethereum gas.
Deposits usually take fifteen to thirty minutes. The return trip is where Polygon’s design shows: withdrawals clear through a checkpoint, a batch of Polygon state that validators periodically submit to Ethereum. Once the checkpoint covering your transaction lands, you claim on Ethereum and the funds are yours. In practice this is usually a matter of hours, which compares well against the seven-day challenge window optimistic rollups apply, though it is slower than a third-party bridge.
AggLayer is the newer piece: Polygon’s settlement layer for connected chains to share liquidity rather than each running an isolated bridge. For a plain ETH transfer it does not change what you click. Take the route the Portal quotes and confirm which network the funds land on.
The official bridge does not solve the gas problem. You will still need POL afterwards.
The practical route: use an aggregator
For most transfers an aggregator such as Jumper is the smoother path, because it can compare bridges and route a small amount of POL to you in the same flow. That collapses two problems into one transaction and is the main reason to prefer an aggregator here over a single dedicated bridge.
Rango is the alternative when you want the widest routing options, particularly if the transfer starts somewhere outside the EVM world. For straightforward Ethereum to Polygon movement at speed, Across is fast and inexpensive on the routes it covers, though you will need to source POL yourself.
Step by step: bridge ETH to Polygon
- Settle gas first. Line up a small POL balance, or pick an aggregator that includes POL in the route.
- Connect a wallet. Open the bridge and connect an Ethereum wallet holding the ETH plus extra for Ethereum gas.
- Set Ethereum to Polygon, token ETH. Expect an ERC-20 representation of ETH on arrival, not native gas currency.
- Read the quote. Check the amount that lands, the route, and whether any POL is included.
- Sign, then check both balances. On Polygon you want to see the bridged ETH and enough POL to pay for a transaction.
How much does it cost?
| Route | Protocol fee | You also pay | Best for |
|---|---|---|---|
| Polygon Portal (official) | None | Ethereum gas, plus POL sourced separately | Large amounts, maximum trust |
| Aggregator (e.g. Jumper) | Route-level fee | Ethereum gas | Best price, can include POL for gas |
| Third-party bridge (e.g. Across) | Small bridge fee | Ethereum gas, plus POL sourced separately | Speed on supported routes |
On small transfers Ethereum gas dominates the total either way, so the free official bridge is not necessarily the cheapest once you add a separate trip to obtain POL. On larger transfers the spread on the route matters more than the fee label, so compare the amount that actually arrives.
Is it safe?
The Polygon Portal is the most trusted route because the network team maintains it and it settles to Ethereum through the checkpoint system. Third-party bridges and aggregators are faster and can solve the gas problem in one step, but each carries the security assumptions of its own protocol, so favour ones with audit history and real time in production.
Habits that remove most of the risk:
- Reach the Portal or the bridge from a bookmark. Search ads and direct messages are where fake bridge front-ends live.
- Send a small test amount on any route you have not used before.
- Check the destination address format with our address checker if you did not generate it yourself.
- Confirm the token you are receiving. Bridged ETH on Polygon is an ERC-20 contract, so verify the address matches the canonical one before swapping.
Common mistakes to avoid
- Bridging ETH with no POL lined up. The most common way to strand funds on Polygon.
- Expecting bridged ETH to pay gas. It cannot. POL is the only gas token.
- Searching for MATIC and assuming the guide is current. MATIC became POL in the 2024 migration; the gas slot did not change, only the name.
- Selecting the wrong network at withdrawal. Choose Polygon explicitly when an exchange or bridge asks.
Which bridge should you use?
Start with Jumper, because delivering a little POL alongside your ETH removes the failure mode this whole guide is about. Choose Rango when the transfer starts on an unusual chain and you need the widest routing. Choose Across for raw speed on Ethereum to Polygon if you already hold POL. Compare all of them in our list of the best cross-chain routers.
