Cross-Chain Fees Explained on Ethereum
Understand gas, bridge fees, liquidity costs, and why the final amount can differ from the quote.
Why this matters on Ethereum
The cheapest-looking quote is not always the cheapest completed transaction. Compare source gas, bridge fees, destination costs, price impact, and the amount you actually expect to receive.
Ethereum is an EVM network and the base layer for a large ecosystem of tokens, applications and Layer 2 networks.
Ethereum uses EVM-style addresses and token contracts, which means the same address can hold balances on several EVM networks at once. A balance that is missing on Ethereum may simply be sitting on a different network.
Ethereum: what to pay attention to
- Costs: Ethereum gas can make very small balance movements uneconomical, so compare total execution cost with the balance value.
- Security: Pay close attention to contract approvals, transaction details and the exact domain used to initiate a transaction.
- Assets and tokens: Verify the ERC-20 contract address and distinguish Ethereum-native assets from representations on other networks.
A Ethereum checklist for this topic
- Compare the quote, the minimum received amount and the total fees before signing.
- Check that the token you hold on Ethereum is supported for the route you are considering.
- Allow for a delay between sending and receiving; do not repeat a transfer while one is pending.
- Keep enough native balance on Ethereum to pay for the transaction that starts the transfer.
Bridge from Ethereum
Ethereum gas can make very small balance movements uneconomical, so compare total execution cost with the balance value. On the Polygon side: confirm that the token is held on Polygon and verify its contract before moving or swapping it.
The bridge guide below is informational; any transaction depends on current network conditions and the route shown in the bridge interface.
Ethereum → Polygon BRIDGE GUIDE