Polygon Bridge is the official way to move supported tokens between Ethereum and Polygon PoS, a separate network with lower transaction costs. To make that move, the Polygon Bridge transfers the value between the networks. You receive tokens in your wallet on the destination network, where you can use them.
Polygon Bridge Moves Tokens Between Two Networks
The bridge lets you use tokens you hold on Ethereum on Polygon PoS, or bring them back. It does not turn your whole wallet into a Polygon wallet. Your wallet can show a balance on each network, so check which one you are viewing.
Here is what happens behind a deposit. For example, if you bridge 100 DAI from Ethereum, the bridge locks 100 DAI there. It then creates a matching 100 DAI on Polygon PoS. On the return trip, it destroys the Polygon tokens and releases the locked tokens on Ethereum. This keeps the bridged amount matched across both networks.
A Transfer Starts With a Wallet and Ends on the Other Network
To start, you need a wallet holding the token on the source network. MetaMask is one example. You also need gas: a small payment in the network’s own token for recording a transaction. ETH pays gas on Ethereum; POL pays gas on Polygon PoS.
For an Ethereum to Polygon transfer, check these three things before signing:
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The token is supported for transfer to Polygon PoS. ERC-20 means a standard type of Ethereum token; the label alone does not guarantee bridge support.
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Your wallet holds the amount you want to move on Ethereum, plus ETH for gas.
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You have a way to get POL for later transactions on Polygon PoS. Receiving a token there does not give you gas automatically.
After you sign, the Ethereum transaction must confirm before the matching tokens arrive on Polygon. For a return trip, the Polygon transaction starts the withdrawal. You then wait for a checkpoint, a record of Polygon transactions posted to Ethereum, before completing the claim there. Keep ETH available for that final transaction.
Before signing, check the network, token, amount and receiving address. Tokens with the same name can have different contracts, which are the records that identify them on each network. A ticker shown in your wallet is not enough to confirm you picked the intended token.
Fees and Waiting Time Depend on Direction
Polygon bridge fees depend mainly on network gas prices and the transactions your transfer needs. An ERC-20 token may need a separate approval transaction before the transfer. Ethereum gas usually accounts for more of the cost than Polygon gas. Read your wallet’s current estimates before signing; they change with network demand.
An Ethereum deposit often takes roughly 10–30 minutes after confirmation. A Polygon PoS withdrawal can take roughly 30 minutes to a few hours because it needs a checkpoint and an Ethereum claim. Those are planning ranges, not deadlines.
Can I Move Any Token With the Bridge?
No. The token needs a supported route between Ethereum and Polygon PoS. If it is missing, do not assume a token with the same name on Polygon is its bridged version. Check the token’s contract and bridge support first. This matters especially when a token has both a native Polygon version and a bridged version.
Why Did My Tokens Leave Polygon but Not Reach Ethereum?
A Polygon withdrawal has two parts. The tokens leave your Polygon balance first, then you wait for their transaction to appear in an Ethereum checkpoint. Once that happens, you still need to claim them on Ethereum and pay ETH gas. A completed Polygon transaction alone does not mean the Ethereum claim is complete.
Is the Polygon Plasma Bridge the Same Route?
The Polygon Plasma Bridge is a different bridge route with a longer withdrawal process. A Plasma exit can take about seven days before funds can be claimed on Ethereum. Check which route your transfer uses when judging its expected time. For a routine Polygon PoS transfer, the checkpoint and claim process described above is the relevant one.