Swap USD Coin (USDC Optimism) for Tether (USDT OMNI)
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 18, 2026 02:33
- Payout network
- OMNI
- 24 hours
- 0%
You get
USDT OMNI
Start the order
USDT OMNI
The figure is indicative; the exact amount is locked in the order.
One USDC Optimism buys 1.0009 USDT OMNI right now; the other way round, 1 USDT OMNI is 0.999101 USDC Optimism. Market over 24 hours: USDC Optimism against USDT OMNI a move of 0%. The week added plus 0.01%.
The weekly corridor ran from 1 to 1.0004 USDT OMNI, a spread of 0.04%.
The payout leaves in the OMNI network, so the receiving address has to belong to that network. By market cap USD Coin sits 6th ($73.86 B) and Tether 3th ($183.32 B). Daily moves of USDC and USDT over 90 days line up at 0.16 (they travel apart).
Who takes the USDC Optimism → USDT OMNI route
- A road both waysThe USDT OMNI → USDC Optimism direction is open too, so going back into USDC takes the same route.
USDC Optimism → USDT OMNI rate and amounts
1 USDC Optimism = 1.0009 USDT OMNI
1 USDT OMNI = 0.999101 USDC Optimism
Send USDC Optimism — receive USDT OMNI
| USDC Optimism | USDT OMNI |
|---|---|
| 20 | 20.018 |
| 100 | 100.09 |
| 500 | 500.45 |
| 5,000 | 5,004.5 |
| 20,000 | 20,018 |
| 100,000 | 100,090 |
Need USDT OMNI — send this much USDC Optimism
| USDT OMNI | USDC Optimism |
|---|---|
| 20 | 19.982 |
| 100 | 99.9101 |
| 500 | 499.5504 |
| 5,000 | 4,995.5 |
| 20,000 | 19,982.02 |
| 100,000 | 99,910.08 |
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 Optimism | From | Network fee | Speed |
|---|---|---|---|---|
| OMNI open now | 1.0009 | — | — | — |
| Ethereum (ERC20) | 1.0009 | 200 USDC Optimism | ≈ $0.0077 | medium |
| TRON (TRC20) | 1.0009 | 200 USDC Optimism | ≈ $2.3 | fast |
| BNB Smart Chain (BEP20) | 1.0009 | 200 USDC Optimism | ≈ $0.0024 | fast |
| Solana | 1.0009 | 200 USDC Optimism | ≈ $0.0005 | fast |
| Polygon | 1.0009 | 200 USDC Optimism | ≈ $0.0017 | fast |
| Arbitrum One | 1.0009 | 200 USDC Optimism | ≈ $0.0032 | fast |
| TON | 1.0009 | 200 USDC Optimism | low | fast |
| Avalanche C-Chain | 1.0009 | — | ≈ < $0.0001 | fast |
| NEAR | 1.0009 | — | — | — |
| Optimism | 1.0009 | — | ≈ $0.00016 | fast |
How the USDC Optimism → USDT OMNI order runs
- Work out the amount in the calculator and press the exchange button.
- Enter a USDT address in OMNI and a way to reach you.
- Send USDC Optimism in Optimism 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 Optimism
- The address network is OMNI. 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 Optimism to USDT OMNI rate has been
high 1.0004 USDT OMNIlow 1 USDT OMNI
Sep 11, 2026 02:35Sep 18, 2026 02:35
high 1.0004 USDT OMNIlow 0.999785 USDT OMNI
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 1.0007 USDT OMNIlow 0.999785 USDT OMNI
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 1.0032 USDT OMNIlow 0.998284 USDT OMNI
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- 0%
- Week
- +0.01%
- Weekly high
- 1.0004 USDT OMNI
- Weekly low
- 1 USDT OMNI
- Spread
- 0.04%
Market data from CoinGecko as of Sep 18, 2026 01:24; the exchange rate is calculated separately and differs. Where these numbers come from
How far USDC Optimism/USDT OMNI travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 1.0004 | 1.0003 | 1.0004 | 0% |
| Week | 1.0004 | 1 | 1.0002 | +0.01% |
| Month | 1.0004 | 0.999785 | 1.0001 | 0% |
| Quarter | 1.0007 | 0.999785 | 1.0003 | 0% |
Figures are in USDT OMNI per unit sent, from market data.
Daily USDC Optimism → USDT OMNI rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 1.0004 USDT OMNI | +0.01% |
| Sep 16, 2026 | 1.0003 USDT OMNI | +0.03% |
| Sep 15, 2026 | 1 USDT OMNI | −0.01% |
| Sep 14, 2026 | 1.0002 USDT OMNI | +0.01% |
| Sep 13, 2026 | 1.0001 USDT OMNI | 0% |
| Sep 12, 2026 | 1 USDT OMNI | −0.02% |
| Sep 11, 2026 | 1.0002 USDT OMNI | 0% |
The numbers on USDC and USDT
USD Coin USDC- Price
- $0.999648
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $73.86 B
- 24-hour turnover
- $15.35 B
- Rank by cap
- #6
- In circulation
- 73.88 B USDC
- Record price
- $1.04
Tether USDT- Price
- $0.999311
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $183.32 B
- 24-hour turnover
- $50.47 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
Source: CoinGecko, Sep 18, 2026 01:24.
USD Coin against Tether
| USD Coin (USDC) | Tether (USDT) | |
|---|---|---|
| Ticker | USDC | USDT |
| Type | token | token |
| Network | Optimism | OMNI |
| Fees are paid in | ETH | — |
| Launched | 2018 | 2014 |
| Built by | Circle | Tether Limited |
| Supply cap | no cap | no cap |
| In circulation | 73.88 B USDC | 183.44 B USDT |
| Market cap | $73.86 B | $183.32 B |
| Rank by cap | #6 | #3 |
Daily moves of USDC and USDT over 90 days line up at 0.16 — they travel apart.
Common questions: USDC Optimism → USDT OMNI
What rate does USDC Optimism to USDT OMNI run at?
As of Sep 18, 2026 02:33 it is 1 USDC Optimism = 1.0009 USDT OMNI. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $1.00.
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 Optimism, and that one goes to the blockchain, not to us.
How long does USDC Optimism to USDT OMNI take?
The clock starts with confirmations: the order goes into work once Optimism confirms your transfer. After that it comes down to how busy the network is.
Which network will USDT OMNI arrive in?
The payout leaves in OMNI. 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 Optimism to USDT OMNI rate do this month?
The month came in at a move of 0%. Low 0.999785, high 1.0004, middle 1.0001 USDT OMNI per USDC Optimism.
Can I go back, USDT OMNI to USDC Optimism?
Yes, the reverse direction is open: 1 USDT OMNI = 0.9993 USDC Optimism. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
Send USDC Optimism, receive something else
USDC Optimism → WIF5.3725
USDC Optimism → XAI140.1274
USDC Optimism → XAUT0.000230909
USDC Optimism → XLM5.4552
USDC Optimism → XMR0.00195418
USDC Optimism → XRP0.773527
USDC Optimism → XTZ3.9793
USDC Optimism → YFI0.000478165
Receive USDT OMNI, send something else
- USDC Polygon → USDT OMNI1.0009
- USDC SOL → USDT OMNI1.0009
- USDC XLM → USDT OMNI1.0009
USDS → USDT OMNI1.0005- USDT Arbitrum → USDT OMNI1.0001
- USDT BEP20 → USDT OMNI1.0001
- USDT AVAX C → USDT OMNI1.0001
- USDT ERC20 → USDT OMNI1.0001