Convert OP to SEI
Swap Optimism (OP) to Sei (SEI) at the best cross-chain rate. SwitchFi routes your OP → SEI exchange across the top DEXs and bridges and settles straight from your wallet — non-custodial, no account, no sign-up.
OP to SEI market data
| Metric | OP | SEI |
|---|---|---|
| Price | $0.0968 | $0.04824 |
| Market cap | $221.52M | $324.84M |
| 24h volume | $76.61M | $58.73M |
| 24h change | -2.28% | +3.85% |
| 7d change | -1.90% | +7.40% |
| 24h high / low | $0.09892 / $0.09318 | $0.04857 / $0.04562 |
| All-time high | $4.84 | $1.14 |
| Market cap rank | #162 | #124 |
What is the OP to SEI exchange rate?
At the current market price, 1 OP ≈ 2.0068 SEI, and 1 SEI ≈ 0.49830074 OP. The rate moves with the market; the exact amount you receive is quoted from live liquidity in your wallet before you sign.
Optimism is the smaller side of this pair — Sei's market capitalisation of $324.84M is roughly 1.5× larger than Optimism's $221.52M. They currently rank #162 and #124 among all cryptocurrencies. Over the past 24 hours OP is -2.28% while SEI is +3.85%, so the OP/SEI rate has moved in SEI's favour. Across the last 7 days the comparison reads -1.90% for OP versus +7.40% for SEI. Liquidity is ample on both legs — OP trades $76.61M a day and SEI trades $58.73M — so conversions execute at market rates. Measured from record highs, OP is down 98.0% and SEI is down 95.8%.
OP to SEI converter & price calculator
Indicative, based on current market prices. Get a live quote in the swap.
OP / SEI conversion tables
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Fetching live quote…
Live quote, net of DEX/bridge/gas fees. The final amount is confirmed in your wallet at execution.
Indicative estimate — the exact amount is confirmed in your wallet at execution.
About Optimism and Sei
Optimism (OP) is the #162 cryptocurrency by market cap, worth $221.52M 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 -1.90% week-on-week and +12.20% over 30 days. Its 24-hour trading volume is $76.61M.
With a total market value of $324.84M, Sei (SEI) sits at #124 among all cryptocurrencies. It is trading 95.8% below its all-time high of $1.14. Circulating supply stands at 6.73B SEI. SEI has moved +7.40% week-on-week and +17.00% over 30 days. Around $58.73M of SEI changes hands every 24 hours.
How to convert OP to SEI
- 1 Enter the amount of OP you want to convert — the swap widget on this page is prefilled with the OP → SEI 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 SEI 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 SEI
Convert any other cryptocurrency from OP
OP to SEI FAQ
What is the OP to SEI exchange rate?
1 OP is worth roughly 2.0068 SEI at the moment (inverted: 1 SEI ≈ 0.49830074 OP). This moves with the market; your wallet shows the exact executable amount before signing.
How to swap, exchange or convert OP to SEI on SwitchFi?
Type in how much OP you're converting, connect a wallet, check the quoted OP→SEI route and confirm in the wallet. The router compares DEX and bridge paths and settles without ever taking custody.
Is the OP to SEI swap instant?
Same-chain swaps settle in seconds; cross-chain routes typically take a few minutes while the bridge confirms on both sides. You can track live status until the funds land.
Are there fees to convert OP to SEI?
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 OP for SEI?
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.