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Coins / Synapse / SYN → SEI
Synapse Sei

Convert SYNon Optimism to SEI

1 SYN ≈ 1.9339 SEI

Swap Synapse (SYN) on Optimism to Sei (SEI) at the best cross-chain rate. SwitchFi routes your SYN → SEI exchange across the top DEXs and bridges and settles straight from your wallet — non-custodial, no account, no sign-up.

SYN to SEI market data

Metric SYN · Optimism SEI
Price $0.09491 $0.04908
Market cap $20.79M $330.57M
24h volume $5.33M $60.22M
24h change +8.95% +1.87%
7d change -14.50% +1.80%
24h high / low $0.09534 / $0.08589 $0.05004 / $0.04758
All-time high $4.92 $1.14
Market cap rank #830 #128

What is the SYN to SEI exchange rate?

At the current market price, 1 SYN ≈ 1.9339 SEI, and 1 SEI ≈ 0.51708023 SYN. The rate moves with the market; the exact amount you receive is quoted from live liquidity in your wallet before you sign.

Synapse is the smaller side of this pair — Sei's market capitalisation of $330.57M is roughly 16× larger than Synapse's $20.79M. SYN holds rank #830 while SEI holds #128 by market capitalisation. The last 24 hours put SYN at +8.95% against +1.87% for SEI — the SYN/SEI rate has moved in SYN's favour. Zooming out to a week, SYN has moved -14.50% while SEI has moved +1.80%. Liquidity is ample on both legs — SYN trades $5.33M a day and SEI trades $60.22M — so conversions execute at market rates. Measured from record highs, SYN is down 98.1% and SEI is down 95.7%.

SYN to SEI converter & price calculator

Indicative, based on current market prices. Get a live quote in the swap.

SYN / SEI conversion tables

SYN to SEI
0.1 SYN0.19339359 SEI
0.5 SYN0.96696794 SEI
1 SYN1.9339 SEI
5 SYN9.6697 SEI
10 SYN19.3394 SEI
50 SYN96.6968 SEI
100 SYN193.3936 SEI
500 SYN966.9679 SEI
1000 SYN1933.94 SEI
SEI to SYN
0.1 SEI0.05170802 SYN
0.5 SEI0.25854011 SYN
1 SEI0.51708023 SYN
5 SEI2.5854 SYN
10 SEI5.1708 SYN
50 SEI25.854 SYN
100 SEI51.708 SYN
500 SEI258.5401 SYN
1000 SEI517.0802 SYN
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About Synapse and Sei

With a total market value of $20.79M, Synapse (SYN) sits at #830 among all cryptocurrencies. It is trading 98.1% below its all-time high of $4.92. 219.07M SYN is circulating out of a hard cap of 250.00M SYN — about 88% of the eventual supply. Over the last 7 days SYN is -14.50%, and -2.60% across 30 days. Daily turnover comes to $5.33M.

With a total market value of $330.57M, Sei (SEI) sits at #128 among all cryptocurrencies. It is trading 95.7% below its all-time high of $1.14. Circulating supply stands at 6.73B SEI. SEI has moved +1.80% week-on-week and +18.70% over 30 days. Around $60.22M of SEI changes hands every 24 hours.

How to convert SYN to SEI

  1. 1 Enter the amount of SYN on Optimism you want to convert — the swap widget on this page is prefilled with the SYN → SEI pair.
  2. 2 Connect a compatible wallet: MetaMask, OKX, Trust Wallet, TokenPocket, TronLink, UniSat, Phantom and others.
  3. 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. 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

Bitcoin Sei BTC → SEI Bitcoin Ethereum Sei ETH → SEI Ethereum Tether Sei USDTEthereum → SEI Tether BNB Sei BNB → SEI BNB XRP Sei XRP → SEI XRP USDC Sei USDCEthereum → SEI USDC Solana Sei SOL → SEI Solana TRON Sei TRX → SEI TRON Figure Heloc Sei FIGR_HELOC → SEI Figure Heloc Hyperliquid Sei HYPE → SEI Hyperliquid Zcash Sei ZEC → SEI Zcash Dogecoin Sei DOGE → SEI Dogecoin

Convert any other cryptocurrency from SYN

Synapse Bitcoin SYNOptimism → BTC Bitcoin Synapse Ethereum SYNOptimism → ETH Ethereum Synapse Tether SYNOptimism → USDTEthereum Tether Synapse BNB SYNOptimism → BNB BNB Synapse XRP SYNOptimism → XRP XRP Synapse USDC SYNOptimism → USDCEthereum USDC Synapse Solana SYNOptimism → SOL Solana Synapse TRON SYNOptimism → TRX TRON Synapse Figure Heloc SYNOptimism → FIGR_HELOC Figure Heloc Synapse Hyperliquid SYNOptimism → HYPE Hyperliquid Synapse Zcash SYNOptimism → ZEC Zcash Synapse Dogecoin SYNOptimism → DOGE Dogecoin

SYN to SEI FAQ

What is the SYN to SEI exchange rate?

1 SYN is worth roughly 1.9339 SEI at the moment (inverted: 1 SEI ≈ 0.51708023 SYN). This moves with the market; your wallet shows the exact executable amount before signing.

How to swap, exchange or convert SYN to SEI on SwitchFi?

Three steps: set the SYN amount, connect your wallet, then approve the best quoted SYN→SEI route. Funds move wallet-to-wallet — SwitchFi never holds them.

Is the SYN to SEI swap instant?

If both assets live on the same chain the swap confirms within seconds. Cross-chain conversions add a few minutes of bridge confirmation time, with live status tracking throughout.

Are there fees to convert SYN to SEI?

SwitchFi shows the network, DEX and bridge fees up front in the quote. You always see the minimum you'll receive before confirming — there are no hidden custody fees because you never give up control of your funds.

Do I need an account to exchange SYN 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.