Mainnet → Mainnet

Swap OP to ARB

Exchange OP from OP Mainnet into ARB on Arbitrum One. The provider waits for the OP deposit before arranging the ARB payout on the destination network. Track those as separate transactions rather than using a sending-chain confirmation as proof of receipt.

Optimism (Mainnet) to Arbitrum (Mainnet)

You send: Optimism (Mainnet)OP · Mainnet
You receive: Arbitrum (Mainnet)ARB · Mainnet

Enter your amount to check live availability for OP on Mainnet → ARB on Mainnet. A provider quote is required before you can create a swap.

Address and network checks

Both OP Mainnet and Arbitrum One use EVM-style addresses. An identical address string cannot confirm the network. Check OP Mainnet in the sending wallet and Arbitrum One in the receiving wallet separately.

Sending OP

Choose OP Mainnet using the Mainnet option shown in this directory. Follow the selected provider’s exact deposit instructions before sending. Send the OP token on the network specified by the order. If sending from a normal self-custody wallet on OP Mainnet, allow for gas paid in ETH, not OP.

For a standard self-custody transfer on OP Mainnet, allow for network fees in ETH, separately from your OP balance. Wallet sponsorship and exchange withdrawal charges can differ; check the sending wallet’s final fee.

Receiving ARB

Choose Arbitrum One using the Mainnet option shown in this directory. Follow the selected provider’s exact deposit instructions before sending. Select the Arbitrum network for this listed ARB asset and retain ETH on that network for an ordinary wallet transfer. Holding ARB does not by itself pay the ETH gas fee. This listed ARB/Mainnet option has no separate memo field. If your destination requires additional instructions that this form cannot supply, choose another compatible destination before creating an order.

Refund address for this pair

Enter a refund address that accepts OP on Mainnet. The refund is sent in OP on Mainnet; verify that your refund wallet supports this exact asset and network.

Swap the other direction: ARB to OP

CROSS-CHAIN EXCHANGE

Make your move

Wallet to wallet

Provider privacy rating

ⓘ

You sendMainnet

Min. 45.312187 · Max. 14,160,058.3784396Optimism (Mainnet)

You receiveMainnet

—

Connecting to providers…Arbitrum (Mainnet)

Recipient address ARB

Timing depends on the pair and provider ↗

INDEPENDENT EXCHANGE PROVIDERSConnecting…

SENDING ASSET

Optimism on OP Mainnet

OP is the governance token of the Optimism Collective. On OP Mainnet, the OP token balance is distinct from the ETH balance used for transaction fees.

Read the OP network guide →

RECEIVING ASSET

Arbitrum on Arbitrum One

ARB is a governance token for the Arbitrum ecosystem. It is different from the ETH used to pay transaction fees on Arbitrum One.

Read the ARB network guide →

About this OP / ARB route

Can I swap OP on Mainnet to ARB on Mainnet?

Both assets are listed in our coin directory. Enter your amount to request a live quote for this exact direction and network combination. A swap can proceed only when a provider returns a usable quote; liquidity, limits and rate types can change.

Which network fee applies when sending OP?

What should I check before receiving ARB on Arbitrum One?

Select the Arbitrum network for this listed ARB asset and retain ETH on that network for an ordinary wallet transfer. Holding ARB does not by itself pay the ETH gas fee. This listed ARB/Mainnet option has no separate memo field. If your destination requires additional instructions that this form cannot supply, choose another compatible destination before creating an order.

How much ARB will I get for OP?

Enter your OP amount to see an approximate receive amount. Click Find the best route to compare providers. Floating rates can change before conversion; fixed quotes follow the selected provider’s terms.

Does a confirmed OP deposit mean my ARB has arrived?

No. Deposit confirmation on OP Mainnet, provider processing and payout on Arbitrum One are separate steps. Use Track swap to see the order status, then check the ARB balance on the receiving network. A live quote or historical route check does not guarantee completion time.