Swap USD Coin (USDC XLM) for Tether (USDT Optimism)
The calculator does the maths at the live rate, the page lists the limits and the timing. Your rate is locked the moment the order is created.
Rate as of Sep 17, 2026 18:53
- Payout network
- Optimism
- 24 hours
- +0.01%
You get
USDT Optimism
Start the order
USDT Optimism
The figure is indicative; the exact amount is locked in the order.
Today USDC XLM goes for 1.0006 USDT Optimism, and USDT Optimism goes for 0.9994 USDC XLM. Market over 24 hours: USDC XLM against USDT Optimism plus 0.01%. The week added plus 0.03%.
The weekly corridor ran from 1 to 1.0005 USDT Optimism, a spread of 0.05%.
The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap USD Coin sits 6th ($73.56 B) and Tether 3th ($183.3 B). Daily moves of USDC and USDT over 90 days line up at 0.16 (they travel apart).
Who takes the USDC XLM → USDT Optimism route
- A road both waysThe USDT Optimism → USDC XLM direction is open too, so going back into USDC takes the same route.
USDC XLM → USDT Optimism rate and amounts
1 USDC XLM = 1.0006 USDT Optimism
1 USDT Optimism = 0.9994 USDC XLM
Send USDC XLM — receive USDT Optimism
| USDC XLM | USDT Optimism |
|---|---|
| 20 | 20.012 |
| 100 | 100.06 |
| 500 | 500.3 |
| 5,000 | 5,003 |
| 20,000 | 20,012 |
| 100,000 | 100,060.01 |
Need USDT Optimism — send this much USDC XLM
| USDT Optimism | USDC XLM |
|---|---|
| 20 | 19.988 |
| 100 | 99.94 |
| 500 | 499.7002 |
| 5,000 | 4,997 |
| 20,000 | 19,988.01 |
| 100,000 | 99,940.03 |
Payout network for USDT
The same USDT goes out in several networks. Rates and lower limits differ, and the fee is charged by the network itself.
| Network | Per USDC XLM | From | Network fee | Speed |
|---|---|---|---|---|
| OMNI | 1.0006 | — | — | — |
| Ethereum (ERC20) | 1.0006 | 200 USDC XLM | ≈ $0.12 | medium |
| TRON (TRC20) | 1.0006 | 200 USDC XLM | ≈ $2.3 | fast |
| BNB Smart Chain (BEP20) | 1.0006 | 200 USDC XLM | ≈ $0.0024 | fast |
| Solana | 1.0006 | 200 USDC XLM | ≈ $0.00051 | fast |
| Polygon | 1.0006 | 200 USDC XLM | ≈ $0.0018 | fast |
| Arbitrum One | 1.0006 | 200 USDC XLM | ≈ $0.0036 | fast |
| TON | 1.0006 | 200 USDC XLM | low | fast |
| Avalanche C-Chain | 1.0006 | — | ≈ < $0.0001 | fast |
| NEAR | 1.0006 | — | — | — |
| Optimism open now | 1.0006 | — | ≈ $0.0002 | fast |
How the USDC XLM → USDT Optimism order runs
- Work out the amount in the calculator and press the exchange button.
- Enter a USDT address in Optimism and a way to reach you.
- Send USDC XLM in XLM for exactly the amount stated in the order.
- Once the network confirms your transfer, Tether leaves for your address. The order page tracks every step.
Check this before sending USDC XLM
- The address network is Optimism. Sending through another network usually means losing the transfer.
- Copy the address whole, then compare the first and last characters after pasting.
- Coins go through an AML check: a flagged transfer can be held until the check is finished.
Where the USDC XLM to USDT Optimism rate has been
high 1.0005 USDT Optimismlow 1 USDT Optimism
Sep 10, 2026 18:55Sep 17, 2026 18:55
high 1.0004 USDT Optimismlow 0.999785 USDT Optimism
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 1.0007 USDT Optimismlow 0.999785 USDT Optimism
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 1.0032 USDT Optimismlow 0.998284 USDT Optimism
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- +0.01%
- Week
- +0.03%
- Weekly high
- 1.0005 USDT Optimism
- Weekly low
- 1 USDT Optimism
- Spread
- 0.05%
Market data from CoinGecko as of Sep 17, 2026 18:54; the exchange rate is calculated separately and differs. Where these numbers come from
How far USDC XLM/USDT Optimism travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 1.0004 | 1.0003 | 1.0004 | +0.01% |
| Week | 1.0005 | 1 | 1.0002 | +0.03% |
| Month | 1.0004 | 0.999785 | 1.0001 | 0% |
| Quarter | 1.0007 | 0.999785 | 1.0003 | 0% |
Figures are in USDT Optimism per unit sent, from market data.
Daily USDC XLM → USDT Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 1.0004 USDT Optimism | +0.01% |
| Sep 16, 2026 | 1.0003 USDT Optimism | +0.03% |
| Sep 15, 2026 | 1 USDT Optimism | −0.01% |
| Sep 14, 2026 | 1.0002 USDT Optimism | +0.01% |
| Sep 13, 2026 | 1.0001 USDT Optimism | 0% |
| Sep 12, 2026 | 1 USDT Optimism | −0.02% |
| Sep 11, 2026 | 1.0002 USDT Optimism | 0% |
The numbers on USDC and USDT
USD Coin USDC- Price
- $0.999605
- 24 hours
- −0.02%
- Week
- 0%
- Market cap
- $73.56 B
- 24-hour turnover
- $19.78 B
- Rank by cap
- #6
- In circulation
- 73.59 B USDC
- Record price
- $1.04
Tether USDT- Price
- $0.999248
- 24 hours
- −0.03%
- Week
- −0.1%
- Market cap
- $183.3 B
- 24-hour turnover
- $62.39 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
Source: CoinGecko, Sep 17, 2026 18:54.
USD Coin against Tether
| USD Coin (USDC) | Tether (USDT) | |
|---|---|---|
| Ticker | USDC | USDT |
| Type | token | token |
| Network | XLM | Optimism |
| Launched | 2018 | 2014 |
| Built by | Circle | Tether Limited |
| Supply cap | no cap | no cap |
| In circulation | 73.59 B USDC | 183.44 B USDT |
| Market cap | $73.56 B | $183.3 B |
| Rank by cap | #6 | #3 |
| Fees are paid in | — | ETH |
Daily moves of USDC and USDT over 90 days line up at 0.16 — they travel apart.
Common questions: USDC XLM → USDT Optimism
What rate does USDC XLM to USDT Optimism run at?
As of Sep 17, 2026 18:53 it is 1 USDC XLM = 1.0006 USDT Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.999848.
What else is taken on top of the rate?
The payout is already calculated at the rate in the calculator. On top of it you only pay the network fee for sending USDC XLM, and that one goes to the blockchain, not to us.
How long does USDC XLM to USDT Optimism take?
The clock starts with confirmations: the order goes into work once XLM confirms your transfer. After that it comes down to how busy the network is.
Which network will USDT Optimism arrive in?
The payout leaves in Optimism. Make sure the receiving wallet works with that network.
Where is receiving USDT cheaper?
The cheapest is usually USDT BEP20, USDT SOL, USDT Polygon, USDT Arbitrum, USDT TON, USDT AVAX C, USDT Optimism. Still, the network is chosen by what the recipient supports, not by the fee.
What if the rate moves while I am paying?
The rate is pinned to the order and does not move while the order is alive. It can be recalculated if the payment arrives late or for a different amount — so send the exact sum, and send it promptly.
What did the USDC XLM to USDT Optimism rate do this month?
The month came in at a move of 0%. Low 0.999785, high 1.0004, middle 1.0001 USDT Optimism per USDC XLM.
Can I go back, USDT Optimism to USDC XLM?
Yes, the reverse direction is open: 1 USDT Optimism = 0.9996 USDC XLM. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
Send USDC XLM, receive something else
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USDC XLM → XAI142.4732
USDC XLM → XAUT0.000229845
USDC XLM → XLM5.3858
USDC XLM → XMR0.00198837
USDC XLM → XRP0.766716
USDC XLM → XTZ4.0437
USDC XLM → YFI0.000480372
Receive USDT Optimism, send something else
USDS → USDT Optimism1.0005- USDT Arbitrum → USDT Optimism1.0001
- USDT BEP20 → USDT Optimism1.0001
- USDT AVAX C → USDT Optimism1.0001
- USDT ERC20 → USDT Optimism1.0001
- USDT NEAR → USDT Optimism1.0001
- USDT OMNI → USDT Optimism1.0001
- USDT Polygon → USDT Optimism1.0001