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The Polygon Bridge — move assets between Ethereum and Polygon PoS

The Polygon Bridge is a two-way set of smart contracts that move ETH, stablecoins like USDC and any ERC-20 token between Ethereum and the Polygon PoS chain. It locks your asset on one side and mints a matching token on the other — low fees on Polygon, fast confirmations and no central custodian holding your funds.

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Deposit vs. withdrawal — time & gas

Deposits to Polygon are fast; withdrawals back to Ethereum take longer by design.

DirectionTypical timeWhere you pay gas
Ethereum → PolygonDeposit ~20–30 minutes Ethereum L1
Polygon → EthereumWithdrawal ~45 min – 3 hrsmedian ~95 min Polygon + Ethereum L1

Transfer times vary with network demand; the ranges above reflect measured Ethereum–Polygon bridge data. You always need POL for gas on the Polygon PoS chain.

What is the Polygon Bridge?

The Polygon Bridge is a set of smart contracts that move tokens between Ethereum and the Polygon PoS chain. It is a two-way lock-and-mint bridge — your asset is locked on one chain and a matching token is minted on the other, so value crosses chains without a central custodian holding your funds.

How does the Polygon Bridge work?

Depositing from Ethereum locks your asset in an Ethereum smart contract and mints an equivalent token on Polygon, usually within about 20–30 minutes. Withdrawing burns the Polygon token and unlocks the original on Ethereum — this step takes longer because it waits for a Polygon PoS checkpoint and a validity proof.

Is the Polygon Bridge safe to use?

The Polygon Bridge is secured by Polygon's proof-of-stake validator set and its smart contracts rather than by Ethereum itself, so its safety depends on validator honesty and correct code. Independent reviewers such as L2BEAT publish the bridge's trust assumptions in detail — always confirm the official contract addresses before you transfer.

What are the Polygon Bridge fees and transfer times?

You pay Ethereum gas fees on deposits and withdrawals, while transactions on the Polygon side cost a fraction of a cent. Deposits to Polygon usually confirm in 20–30 minutes; withdrawals back to Ethereum take longer — typically 45 minutes to a few hours — because they wait for a checkpoint.

Which tokens does the Polygon Bridge support?

The Polygon Bridge supports ETH, leading stablecoins like USDC and USDT, and most ERC-20 tokens. ETH arrives on Polygon as wrapped ETH, and you will need POL — the chain's native gas token — to transact once your funds land.

Does the Polygon Bridge use MATIC or POL?

Polygon's native token is now POL, not MATIC. On 4 September 2024, MATIC was upgraded to POL at a 1:1 ratio, and POL became the gas and staking token of the Polygon PoS chain; for most holders the MATIC-to-POL migration happened automatically. After bridging, keep a little POL on hand for gas.

Sources: Ethereum.org, L2BEAT, CoinGecko, Circle and peer-reviewed Ethereum–Polygon bridge research. Step-by-step bridging walkthrough

Polygon (POL) price chart

Live POL / USDT market data, loaded on demand.

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POL / USDT · market data by TradingView View POL on TradingView