Cross-chain · Ethereum → Polygon

Swap ETH from Ethereum to POL on Polygon

Swap ETH from Ethereum to POL on Polygon. Someone who needs POL gas on chain 137 spends native ETH on Ethereum to receive it.

Both sides use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. On Ethereum that string means native ETH, the gas coin on Etherscan for chain id 1. On Polygon the same string means native POL, the gas coin on Polygonscan for chain id 137. You are selling ETH to receive POL. Leave extra ETH so the send can pay its own fee. Mainnet blocks are about 12 seconds. Switch to chain id 137 and read the native line on Polygonscan.

Diagram for Swap ETH from Ethereum to POL on Polygon
ETH leaves Ethereum. POL is what can arrive on Polygon.

Same placeholder, different gas coin

Do not import 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on either chain. The wallet shows ETH on chain id 1 and POL on chain id 137. A wallet that still prints MATIC is often labeling this POL balance with the old name. If both lines look unchanged, you are still on the source network.

Why sell ETH for POL

A new Polygon wallet cannot move tokens until it holds POL. This pair turns mainnet ETH into that gas coin. It is a poor way to keep a dollar balance. If you wanted USDC or USDT on chain 137, pick the route whose output is that contract. Polygon is the network the POL pays for.

Wrong tool for a mainnet trade

Buying WETH, USDC, or USDT on Ethereum never credits native POL. Wrapping ETH into 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 is also local. This route is the wrong tool for all of those. Use it when the next signature has to be on chain id 137.

After the native balance moves

Switch to chain id 137 and read Polygonscan. Blocks there are about 2 seconds. The POL you received can pay the next approval or swap. Spend less than the full amount if you still need gas for that follow-up.

Legal

Risk disclosure

XAUConnect is a non-custodial swap aggregator. Digital assets are volatile and may lose value rapidly. Content on this page is educational and not investment advice. Verify every contract address on the official block explorer before approving a transaction.

Frequently asked questions

What is the best way to swap ETH from Ethereum to POL on Polygon?

Both sides use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE. On Ethereum that string means native ETH, the gas coin on Etherscan for chain id 1.

Why are the two addresses identical?

Both are 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE because each chain uses that placeholder for its own gas coin. Etherscan reads it as ETH on chain id 1. Polygonscan reads it as POL on chain id 137. You are not moving one native balance from one explorer onto the other.

How much ETH should stay behind?

Enough to pay the chain id 1 fee after the amount you sell. Native ETH funds both the trade and the gas, so a max send can fail. The POL you receive does not pay that mainnet fee. It exists on chain id 137 only. Ethereum blocks are about 12 seconds.

Is a MATIC token on Ethereum the same result?

An ERC-20 with an old MATIC ticker on Ethereum stays on chain id 1 and will not pay Polygon gas. This route delivers native POL. Use it when chain 137 fees are the gap. Skip it when you are still trading on Ethereum and only wanted a mainnet token.

Live execution

Trade on XAUConnect

Open the swap page with this cross-chain route pre-selected, then connect your wallet on the source chain to quote and execute. You keep the keys.

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