Cross-Chain Fees Explained on Sui
Understand gas, bridge fees, liquidity costs, and why the final amount can differ from the quote.
Why this matters on Sui
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.
Sui uses an object-centric model that differs from the account and token conventions of EVM networks.
Sui does not follow standard EVM conventions. Address formats, token identifiers and approval mechanics differ, so EVM-oriented checklists and tools should only be applied to Sui after confirming they are supported.
Sui: what to pay attention to
- Costs: Consider network transaction costs and route-specific costs when evaluating small balances.
- Security: Review transaction effects carefully and use trusted wallet interfaces.
- Assets and tokens: Verify the network-specific asset and object details rather than applying EVM assumptions.
A Sui checklist for this topic
- Compare the quote, the minimum received amount and the total fees before signing.
- Check that the token you hold on Sui 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 Sui to pay for the transaction that starts the transfer.
Bridge from Sui
Consider network transaction costs and route-specific costs when evaluating small balances. On the Aptos side: verify the network-specific asset representation and account details.
The bridge guide below is informational; any transaction depends on current network conditions and the route shown in the bridge interface.
Sui → Aptos BRIDGE GUIDE