What a swap costs on Arbitrum One
Gas is paid in ETH and has two components: the small execution cost on Arbitrum and the cost of posting your data to Ethereum. The second one dominates, which is why Arbitrum fees rise when Ethereum is busy even though Arbitrum itself is not.
Every swap has three separate recipients and FBT Swap is only one of them. Network gas is paid in ETH and goes to the chain itself. The pool fee sits inside the price you are quoted and goes to liquidity providers. The platform fee is 0.70% of the input. None of the three is taken out of another, and none of them changes after you sign.
Getting assets onto Arbitrum One
The canonical bridge from Ethereum deposits in minutes. Withdrawing the same way takes about a week — the challenge period that makes an optimistic rollup safe. Third-party bridges and exchange withdrawals skip that wait by taking on the risk themselves and charging for it.
Before moving a large amount, send a small test transfer and confirm it arrived on arbiscan.io. FBT Swap is non-custodial and cannot reverse, freeze or compensate a transfer sent on the wrong network — it never holds the funds, so there is nothing for it to return.
What to check before you sign
People bridge in, swap, and then discover they have no ETH left for gas because the whole balance went into the trade. Keep a small ETH reserve on this chain specifically; it is a separate balance from your Ethereum one.
Check three things every time: the network name your wallet is showing and chain ID 42161, the contract address of the token you are receiving, and the size of the approval you are granting. An unlimited approval stays live until you revoke it — it is a separate signature from the swap and deserves separate attention.
What this page does not promise
The rate you see is the best route among the venues queried at that moment, which is not the same as the best price available anywhere. Routing through an aggregator reduces exposure to sandwich attacks but does not make a public transaction immune to them, and FBT Swap does not forecast prices or recommend trades.
FBT Swap cannot audit token contracts you import yourself, cannot restore a lost recovery phrase and cannot reverse a confirmed transaction. The only official domain is fbtswap.ir and the only contact address is fbtswap@gmail.com; we never contact users first.