Swap USD Coin (USDC NEAR) 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 18, 2026 05:38
- Payout network
- Optimism
- 24 hours
- 0%
You get
USDT Optimism
Start the order
USDT Optimism
The figure is indicative; the exact amount is locked in the order.
The direction runs at 1.001 USDT Optimism per USDC NEAR, or 0.999001 USDC NEAR per USDT Optimism. Market over 24 hours: USDC NEAR against USDT Optimism a move of 0%. The week added a move of 0%.
The weekly corridor ran from 1 to 1.0004 USDT Optimism, a spread of 0.04%.
The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap USD Coin sits 6th ($73.87 B) and Tether 3th ($183.29 B). Daily moves of USDC and USDT over 90 days line up at 0.15 (they travel apart).
Who takes the USDC NEAR → USDT Optimism route
- A road both waysThe USDT Optimism → USDC NEAR direction is open too, so going back into USDC takes the same route.
USDC NEAR → USDT Optimism rate and amounts
1 USDC NEAR = 1.001 USDT Optimism
1 USDT Optimism = 0.999001 USDC NEAR
Send USDC NEAR — receive USDT Optimism
| USDC NEAR | USDT Optimism |
|---|---|
| 20 | 20.02 |
| 100 | 100.1 |
| 500 | 500.5 |
| 5,000 | 5,005 |
| 20,000 | 20,020 |
| 100,000 | 100,100.01 |
Need USDT Optimism — send this much USDC NEAR
| USDT Optimism | USDC NEAR |
|---|---|
| 20 | 19.98 |
| 100 | 99.9001 |
| 500 | 499.5005 |
| 5,000 | 4,995 |
| 20,000 | 19,980.02 |
| 100,000 | 99,900.09 |
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 NEAR | From | Network fee | Speed |
|---|---|---|---|---|
| OMNI | 1.001 | — | — | — |
| Ethereum (ERC20) | 1.001 | 200 USDC NEAR | ≈ $0.0099 | medium |
| TRON (TRC20) | 1.001 | 200 USDC NEAR | ≈ $2.3 | fast |
| BNB Smart Chain (BEP20) | 1.001 | 200 USDC NEAR | ≈ $0.0024 | fast |
| Solana | 1.001 | 200 USDC NEAR | ≈ $0.00051 | fast |
| Polygon | 1.001 | 200 USDC NEAR | ≈ $0.0018 | fast |
| Arbitrum One | 1.001 | 200 USDC NEAR | ≈ $0.0032 | fast |
| TON | 1.001 | 200 USDC NEAR | low | fast |
| Avalanche C-Chain | 1.001 | — | ≈ < $0.0001 | fast |
| NEAR | 1.001 | — | — | — |
| Optimism open now | 1.001 | — | ≈ $0.00016 | fast |
How the USDC NEAR → 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 NEAR in NEAR 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 NEAR
- 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 NEAR to USDT Optimism rate has been
high 1.0004 USDT Optimismlow 1 USDT Optimism
Sep 11, 2026 05:43Sep 18, 2026 05:43
high 1.0004 USDT Optimismlow 0.999785 USDT Optimism
Aug 19, 2026 03:00Sep 18, 2026 03:00
high 1.0007 USDT Optimismlow 0.999785 USDT Optimism
Jun 20, 2026 03:00Sep 18, 2026 03:00
high 1.0032 USDT Optimismlow 0.998284 USDT Optimism
Sep 19, 2025 03:00Sep 18, 2026 03:00
- 24 hours
- 0%
- Week
- 0%
- Weekly high
- 1.0004 USDT Optimism
- Weekly low
- 1 USDT Optimism
- Spread
- 0.04%
Market data from CoinGecko as of Sep 18, 2026 05:24; the exchange rate is calculated separately and differs. Where these numbers come from
How far USDC NEAR/USDT Optimism 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% |
| Month | 1.0004 | 0.999785 | 1.0001 | 0% |
| Quarter | 1.0007 | 0.999785 | 1.0003 | +0.01% |
Figures are in USDT Optimism per unit sent, from market data.
Daily USDC NEAR → USDT Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 18, 2026 | 1.0004 USDT Optimism | 0% |
| Sep 17, 2026 | 1.0003 USDT Optimism | 0% |
| 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% |
Daily RubyCash rate: USDC NEAR → USDT Optimism
| Date | RubyCash rate | Market rate |
|---|---|---|
| Sep 18, 2026 | 1.0009 USDT Optimism | 1.0004 |
| Sep 17, 2026 | 1.001 USDT Optimism | 1.0003 |
| Sep 16, 2026 | 1.0007 USDT Optimism | 1.0003 |
Our own rate is written down every hour; the table keeps the last entry of each day. The market column is the ratio of the same two coins on CoinGecko at that moment. Where these numbers come from
The numbers on USDC and USDT
USD Coin USDC- Price
- $0.999567
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $73.87 B
- 24-hour turnover
- $15.16 B
- Rank by cap
- #6
- In circulation
- 73.9 B USDC
- Record price
- $1.04
Tether USDT- Price
- $0.99918
- 24 hours
- −0.01%
- Week
- −0.1%
- Market cap
- $183.29 B
- 24-hour turnover
- $49.51 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
Source: CoinGecko, Sep 18, 2026 05:24.
USD Coin against Tether
| USD Coin (USDC) | Tether (USDT) | |
|---|---|---|
| Ticker | USDC | USDT |
| Type | token | token |
| Network | NEAR | Optimism |
| Launched | 2018 | 2014 |
| Built by | Circle | Tether Limited |
| Supply cap | no cap | no cap |
| In circulation | 73.9 B USDC | 183.44 B USDT |
| Market cap | $73.87 B | $183.29 B |
| Rank by cap | #6 | #3 |
| Fees are paid in | — | ETH |
Daily moves of USDC and USDT over 90 days line up at 0.15 — they travel apart.
Common questions: USDC NEAR → USDT Optimism
What rate does USDC NEAR to USDT Optimism run at?
As of Sep 18, 2026 05:38 it is 1 USDC NEAR = 1.001 USDT Optimism. 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 NEAR, and that one goes to the blockchain, not to us.
How long does USDC NEAR to USDT Optimism take?
The clock starts with confirmations: the order goes into work once NEAR 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 NEAR 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 NEAR.
Can I go back, USDT Optimism to USDC NEAR?
Yes, the reverse direction is open: 1 USDT Optimism = 0.999201 USDC NEAR. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
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USDC NEAR → XAI138.9768
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USDC NEAR → XLM5.4003
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Receive USDT Optimism, send something else
- USDC Optimism → USDT Optimism1.001
- USDC Polygon → USDT Optimism1.001
- USDC SOL → USDT Optimism1.001
- USDC XLM → USDT Optimism1.001
USDS → USDT Optimism1.0005- USDT Arbitrum → USDT Optimism1.0001
- USDT BEP20 → USDT Optimism1.0001
- USDT AVAX C → USDT Optimism1.0001