Convert EXTRAon Optimism to CXon Ethereum
Swap Extra Finance (EXTRA) on Optimism to Cortex (CX) on Ethereum at the best cross-chain rate. SwitchFi routes your EXTRA → CX exchange across the top DEXs and bridges and settles straight from your wallet — non-custodial, no account, no sign-up.
EXTRA to CX market data
| Metric | EXTRA · Optimism | CX · Ethereum |
|---|---|---|
| Price | $0.00477 | $0.06355 |
| Market cap | $2.11M | $95.34M |
| 24h volume | $1,425 | $1.03M |
| 24h change | -2.64% | -5.98% |
| 7d change | +21.41% | -24.48% |
| 24h high / low | $0.004917 / $0.004748 | $0.07835 / $0.06339 |
| All-time high | $0.2879 | $0.1324 |
| Market cap rank | #2177 | #279 |
What is the EXTRA to CX exchange rate?
At the current market price, 1 EXTRA ≈ 0.07506806 CX, and 1 CX ≈ 13.3212 EXTRA. The rate moves with the market; the exact amount you receive is quoted from live liquidity in your wallet before you sign.
Extra Finance is the smaller side of this pair — Cortex's market capitalisation of $95.34M is roughly 45× larger than Extra Finance's $2.11M. They currently rank #2177 and #279 among all cryptocurrencies. The last 24 hours put EXTRA at -2.64% against -5.98% for CX — the EXTRA/CX rate has moved in EXTRA's favour. Across the last 7 days the comparison reads +21.41% for EXTRA versus -24.48% for CX. Daily turnover runs at $1,425 for EXTRA and $1.03M for CX, so routed swaps between the two settle at market rates without moving the price. EXTRA currently trades 98.3% below its all-time high, while CX sits 51.9% under its own peak.
EXTRA to CX converter & price calculator
Indicative, based on current market prices. Get a live quote in the swap.
EXTRA / CX conversion tables
() on is not verified and may be a scam or an impostor of a well-known token. You could end up with a token you can't sell.
This browser has no crypto wallet. Pick your wallet app — SwitchFi will open inside its built-in browser, where you can connect.
The app didn't open — it may not be installed. You can still use SwitchFi from any wallet app:
- 1Open your wallet app (MetaMask, OKX, TokenPocket, TronLink…).
- 2Find the Browser / Discover / DApp tab.
- 3Paste this address and open it:
You have more than one wallet installed. Pick the one to connect.
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 Extra Finance and Cortex
Extra Finance (EXTRA) is the #2177 cryptocurrency by market cap, worth $2.11M in aggregate. It is trading 98.3% below its all-time high of $0.2879. 443.03M EXTRA is circulating out of a hard cap of 1.00B EXTRA — about 44% of the eventual supply. Recent performance reads +21.41% over 7 days and +4.11% over the past month for EXTRA. Daily turnover comes to $1,425.
Cortex (CX) is the #279 cryptocurrency by market cap, worth $95.34M in aggregate. It is trading 51.9% below its all-time high of $0.1324. Of a maximum supply of 1.65B CX, 1.50B CX (91%) is already in circulation. Over the last 7 days CX is -24.48%, and +790.78% across 30 days. Its 24-hour trading volume is $1.03M.
How to convert EXTRA to CX
- 1 Enter the amount of EXTRA on Optimism you want to convert — the swap widget on this page is prefilled with the EXTRA → CX 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 CX on Ethereum 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 CX
BTC → CXEthereum
Bitcoin
ETH → CXEthereum
Ethereum
USDTEthereum → CXEthereum
Tether
BNB → CXEthereum
BNB
USDCEthereum → CXEthereum
USDC
XRP → CXEthereum
XRP
SOL → CXEthereum
Solana
TRX → CXEthereum
TRON
FIGR_HELOC → CXEthereum
Figure Heloc
HYPE → CXEthereum
Hyperliquid
DOGE → CXEthereum
Dogecoin
USDSEthereum → CXEthereum
USDS
Convert any other cryptocurrency from EXTRA
EXTRAOptimism → BTC
Bitcoin
EXTRAOptimism → ETH
Ethereum
EXTRAOptimism → USDTEthereum
Tether
EXTRAOptimism → BNB
BNB
EXTRAOptimism → USDCEthereum
USDC
EXTRAOptimism → XRP
XRP
EXTRAOptimism → SOL
Solana
EXTRAOptimism → TRX
TRON
EXTRAOptimism → FIGR_HELOC
Figure Heloc
EXTRAOptimism → HYPE
Hyperliquid
EXTRAOptimism → DOGE
Dogecoin
EXTRAOptimism → USDSEthereum
USDS
EXTRA to CX FAQ
What is the EXTRA to CX exchange rate?
Right now 1 EXTRA ≈ 0.07506806 CX (and 1 CX ≈ 13.3212 EXTRA). Rates update continuously from live market data; the exact amount you receive is quoted in your wallet before you sign.
How to swap, exchange or convert EXTRA to CX on SwitchFi?
Enter the amount of EXTRA you want to pay, connect your wallet, review the quote and confirm. SwitchFi routes the swap across DEXs and bridges to the best EXTRA→CX path — non-custodial, straight from your wallet.
Is the EXTRA to CX 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 EXTRA to CX?
All costs — gas, DEX fees and any bridge fee — are included in the quote before you sign, along with the guaranteed minimum you'll receive. There are no account or custody charges.
Do I need an account to exchange EXTRA for CX?
No account is needed. You connect a wallet, approve the swap and receive the funds directly — there is no registration or KYC step for on-chain swaps.
Market data by CoinGecko, cached server-side. Prices are informational — the exact swap rate is quoted at execution time.