Convert ARBon Ethereum to OP
Swap Arbitrum (ARB) on Ethereum to Optimism (OP) at the best cross-chain rate. SwitchFi routes your ARB → OP exchange across the top DEXs and bridges and settles straight from your wallet — non-custodial, no account, no sign-up.
ARB to OP market data
| Metric | ARB · Ethereum | OP |
|---|---|---|
| Price | $0.1248 | $0.09799 |
| Market cap | $833.21M | $224.21M |
| 24h volume | $372.46M | $73.06M |
| 24h change | +13.91% | +5.03% |
| 7d change | +36.60% | +0.70% |
| 24h high / low | $0.1264 / $0.1064 | $0.09984 / $0.09353 |
| All-time high | $2.39 | $4.84 |
| Market cap rank | #81 | #164 |
What is the ARB to OP exchange rate?
At the current market price, 1 ARB ≈ 1.2739 OP, and 1 OP ≈ 0.78497845 ARB. The rate moves with the market; the exact amount you receive is quoted from live liquidity in your wallet before you sign.
Arbitrum brings the bigger balance sheet here: $833.21M in market capitalisation against $224.21M for Optimism. They currently rank #81 and #164 among all cryptocurrencies. The last 24 hours put ARB at +13.91% against +5.03% for OP — the ARB/OP rate has moved in ARB's favour. Across the last 7 days the comparison reads +36.60% for ARB versus +0.70% for OP. With $372.46M and $73.06M in respective daily volume, neither side of a ARB→OP swap struggles for depth. Measured from record highs, ARB is down 94.8% and OP is down 98.0%.
ARB to OP converter & price calculator
Indicative, based on current market prices. Get a live quote in the swap.
ARB / OP conversion tables
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Indicative estimate — the exact amount is confirmed in your wallet at execution.
About Arbitrum and Optimism
With a total market value of $833.21M, Arbitrum (ARB) sits at #81 among all cryptocurrencies. The price sits 94.8% under the record high of $2.39. Of a maximum supply of 10.00B ARB, 6.68B ARB (67%) is already in circulation. Recent performance reads +36.60% over 7 days and +52.70% over the past month for ARB. Daily turnover comes to $372.46M.
Optimism (OP) is the #164 cryptocurrency by market cap, worth $224.21M in aggregate. The price sits 98.0% under the record high of $4.84. Of a maximum supply of 4.29B OP, 2.29B OP (53%) is already in circulation. OP has moved +0.70% week-on-week and +11.70% over 30 days. Its 24-hour trading volume is $73.06M.
How to convert ARB to OP
- 1 Enter the amount of ARB on Ethereum you want to convert — the swap widget on this page is prefilled with the ARB → OP pair.
- 2 Connect a compatible wallet: MetaMask, OKX, Trust Wallet, TokenPocket, TronLink, UniSat, Phantom and others.
- 3 Review the quoted route — the estimated and minimum amount of OP you will receive, plus network, DEX and bridge fees, are all shown before you sign.
- 4 Confirm the transaction in your wallet and track the swap on the My transactions page until the funds arrive.
Other options to exchange OP
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ARB to OP FAQ
What is the ARB to OP exchange rate?
1 ARB is worth roughly 1.2739 OP at the moment (inverted: 1 OP ≈ 0.78497845 ARB). This moves with the market; your wallet shows the exact executable amount before signing.
How to swap, exchange or convert ARB to OP on SwitchFi?
Three steps: set the ARB amount, connect your wallet, then approve the best quoted ARB→OP route. Funds move wallet-to-wallet — SwitchFi never holds them.
Is the ARB to OP swap instant?
Speed depends on the route: same-chain trades are near-instant, while bridged cross-chain paths usually complete in a few minutes. Progress is trackable the whole way.
Are there fees to convert ARB to OP?
The usual on-chain costs apply (network gas plus DEX/bridge fees), but they're disclosed inside the quote together with the minimum received. Nothing is charged for accounts or custody.
Do I need an account to exchange ARB for OP?
No. SwitchFi is a non-custodial router — connect a compatible wallet and swap. No sign-up, no KYC to use the on-chain swap.
Market data by CoinGecko, cached server-side. Prices are informational — the exact swap rate is quoted at execution time.