Convert Optimism (OP) to Arbitrum (ARB)
1 OP equals about 1.132666 ARB. Swap Optimism to Arbitrum natively across chains with live rates and low fees.
Last updated: Aug 11, 2026, 10:09 AM UTC
How to convert Optimism to Arbitrum
- 1
Enter an amount
Type how much Optimism you want to swap. The estimated Arbitrum you receive updates instantly.
- 2
Open the swap
Tap "Swap on NativeSwap" to carry your pair and amount straight into the app.
- 3
Connect and confirm
Connect your wallet, review the route, and confirm. Your Arbitrum arrives at your address.
Why swap OP on NativeSwap
Settlement
Timing follows each chain's confirmations. You see an estimate first.
Self-custody
Your keys, your crypto. We never hold your funds.
No bridges
Native cross-chain routing, no wrapped tokens.
Low fees
A clear ~10-15 bps fee, shown before you confirm.
How the OP to ARB route works
This route spans two networks: OP leaves your wallet on Optimism and ARB settles on Arbitrum One. NativeSwap routes it natively, so no centralized bridge sits in the middle and you do not receive a wrapped token.
- You send
- OP is the native coin of Optimism. You sign the transaction on Optimism, so that network's gas fee applies.
- You receive
- ARB is the native coin of Arbitrum One. Arbitrum arrives at an address you control on Arbitrum One.
Optimism settles on Optimism; Arbitrum settles on Arbitrum One. You pay network gas on Optimism plus a service fee of roughly 10-15 basis points; swaps under $10 have no service fee. Settlement time depends on how quickly each network confirms, and an estimate is shown before you confirm.
OP to ARB - frequently asked questions
How much ARB do I get for 1 OP?
At current market rates, 1 OP converts to about 1.132666 ARB. The rate moves with the market, so check the live figure above before you swap.
How much OP do I get for 1 ARB?
Going the other way, 1 ARB is roughly 0.882873 OP. Use the calculator above for any amount.
What is 1 OP worth in USD?
1 OP is currently about $0.09 USD. Prices refresh regularly to track the market.
Is the OP to ARB swap non-custodial?
Yes. NativeSwap is an interface only. Your Optimism moves from your wallet to the decentralized protocol you pick, then your Arbitrum lands at your address. We never hold the funds.
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