Convert USDCon Optimism to USDDon Ethereum
Swap USDC (USDC) on Optimism to USDD (USDD) on Ethereum at the best cross-chain rate. SwitchFi routes your USDC → USDD exchange across the top DEXs and bridges and settles straight from your wallet — non-custodial, no account, no sign-up.
USDC to USDD market data
| Metric | USDC · Optimism | USDD · Ethereum |
|---|---|---|
| Price | $0.9999 | $0.998 |
| Market cap | $73.20B | $1.50B |
| 24h volume | $11.91B | $3.58M |
| 24h change | -0.00% | -0.20% |
| 7d change | +0.01% | -0.08% |
| 24h high / low | $1.00 / $0.9997 | $1.00 / $0.9957 |
| All-time high | $1.04 | $1.05 |
| Market cap rank | #5 | #50 |
What is the USDC to USDD exchange rate?
At the current market price, 1 USDC ≈ 1.0019 USDD, and 1 USDD ≈ 0.99814874 USDC. The rate moves with the market; the exact amount you receive is quoted from live liquidity in your wallet before you sign.
USDC is the larger asset of this pair: its market capitalisation of $73.20B is roughly 49× that of USDD at $1.50B. They currently rank #5 and #50 among all cryptocurrencies. Over the past 24 hours USDC is -0.00% while USDD is -0.20%, so the USDC/USDD rate has moved in USDC's favour. On a 7-day view the tape shows USDC +0.01% and USDD -0.08%. Liquidity is ample on both legs — USDC trades $11.91B a day and USDD trades $3.58M — so conversions execute at market rates. Measured from record highs, USDC is down 4.2% and USDD is down 5.1%.
USDC to USDD converter & price calculator
Indicative, based on current market prices. Get a live quote in the swap.
USDC / USDD conversion tables
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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 USDC and USDD
With a total market value of $73.20B, USDC (USDC) sits at #5 among all cryptocurrencies. Compared with its $1.04 all-time peak, it currently trades 4.2% lower. Circulating supply stands at 73.21B USDC. Over the last 7 days USDC is +0.01%, and +0.00% across 30 days. Its 24-hour trading volume is $11.91B.
USDD (USDD) is the #50 cryptocurrency by market cap, worth $1.50B in aggregate. It is trading 5.1% below its all-time high of $1.05. Circulating supply stands at 1.50B USDD. Over the last 7 days USDD is -0.08%, and -0.17% across 30 days. Around $3.58M of USDD changes hands every 24 hours.
How to convert USDC to USDD
- 1 Enter the amount of USDC on Optimism you want to convert — the swap widget on this page is prefilled with the USDC → USDD 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 USDD 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 USDD
BTC → USDDEthereum
Bitcoin
ETH → USDDEthereum
Ethereum
USDTEthereum → USDDEthereum
Tether
BNB → USDDEthereum
BNB
XRP → USDDEthereum
XRP
SOL → USDDEthereum
Solana
TRX → USDDEthereum
TRON
FIGR_HELOC → USDDEthereum
Figure Heloc
HYPE → USDDEthereum
Hyperliquid
DOGE → USDDEthereum
Dogecoin
USDSEthereum → USDDEthereum
USDS
RAIN → USDDEthereum
Rain
Convert any other cryptocurrency from USDC
USDCOptimism → BTC
Bitcoin
USDCOptimism → ETH
Ethereum
USDCOptimism → USDTEthereum
Tether
USDCOptimism → BNB
BNB
USDCOptimism → XRP
XRP
USDCOptimism → SOL
Solana
USDCOptimism → TRX
TRON
USDCOptimism → FIGR_HELOC
Figure Heloc
USDCOptimism → HYPE
Hyperliquid
USDCOptimism → DOGE
Dogecoin
USDCOptimism → USDSEthereum
USDS
USDCOptimism → RAIN
Rain
USDC to USDD FAQ
What is the USDC to USDD exchange rate?
At current prices one USDC converts to about 1.0019 USDD, and one USDD to about 0.99814874 USDC. The figure tracks the market in real time — the binding rate is the one quoted at execution.
How to swap, exchange or convert USDC to USDD on SwitchFi?
Enter the amount of USDC you want to pay, connect your wallet, review the quote and confirm. SwitchFi routes the swap across DEXs and bridges to the best USDC→USDD path — non-custodial, straight from your wallet.
Is the USDC to USDD 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 USDC to USDD?
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 USDC for USDD?
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.