Swap Tether (USDT Optimism) for USD Coin (USDC NEAR)
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
- NEAR
- 24 hours
- 0%
The figure is indicative; the exact amount is locked in the order.
The direction runs at 0.999201 USDC NEAR per USDT Optimism, or 1.0008 USDT Optimism per USDC NEAR. Market over 24 hours: USDT Optimism against USDC NEAR a move of 0%. The week added a move of 0%.
The weekly corridor ran from 0.999555 to 0.999993 USDC NEAR, a spread of 0.04%.
The payout leaves in the NEAR network, so the receiving address has to belong to that network. By market cap Tether sits 3th ($183.29 B) and USD Coin 6th ($73.87 B). Daily moves of USDT and USDC over 90 days line up at 0.15 (they travel apart).
Who takes the USDT Optimism → USDC NEAR route
- A road both waysThe USDC NEAR → USDT Optimism direction is open too, so going back into USDT takes the same route.
USDT Optimism → USDC NEAR rate and amounts
Send USDT Optimism — receive USDC NEAR
| USDT Optimism | USDC NEAR |
|---|---|
| 20 | 19.984 |
| 100 | 99.9201 |
| 500 | 499.6004 |
| 5,000 | 4,996 |
| 20,000 | 19,984.01 |
| 100,000 | 99,920.07 |
Need USDC NEAR — send this much USDT Optimism
| USDC NEAR | USDT Optimism |
|---|---|
| 20 | 20.016 |
| 100 | 100.08 |
| 500 | 500.4 |
| 5,000 | 5,004 |
| 20,000 | 20,016 |
| 100,000 | 100,079.99 |
Payout network for USDC
The same USDC goes out in several networks. Rates and lower limits differ, and the fee is charged by the network itself.
| Network | Per USDT Optimism | From | Network fee | Speed |
|---|---|---|---|---|
| Ethereum (ERC20) | 0.999201 | 200 USDT Optimism | ≈ $0.0099 | medium |
| Solana | 0.999201 | 200 USDT Optimism | ≈ $0.00051 | fast |
| Polygon | 0.999201 | 200 USDT Optimism | ≈ $0.0018 | fast |
| Arbitrum One | 0.999201 | — | ≈ $0.0032 | fast |
| BASE | 0.999201 | — | — | — |
| BNB Smart Chain (BEP20) | 0.999201 | — | ≈ $0.0024 | fast |
| Avalanche C-Chain | 0.999201 | — | ≈ < $0.0001 | fast |
| NEAR open now | 0.999201 | — | — | — |
| Optimism | 0.999201 | — | ≈ $0.00016 | fast |
| XLM | 0.999201 | — | — | — |
How the USDT Optimism → USDC NEAR order runs
- Work out the amount in the calculator and press the exchange button.
- Enter a USDC address in NEAR and a way to reach you.
- Send USDT Optimism in Optimism for exactly the amount stated in the order.
- Once the network confirms your transfer, USD Coin leaves for your address. The order page tracks every step.
Check this before sending USDT Optimism
- The address network is NEAR. 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 USDT Optimism to USDC NEAR rate has been
- 24 hours
- 0%
- Week
- 0%
- Weekly high
- 0.999993 USDC NEAR
- Weekly low
- 0.999555 USDC NEAR
- 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 USDT Optimism/USDC NEAR travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.999681 | 0.999555 | 0.999623 | 0% |
| Week | 0.999993 | 0.999555 | 0.999816 | 0% |
| Month | 1.0002 | 0.999642 | 0.999917 | 0% |
| Quarter | 1.0002 | 0.999327 | 0.999707 | −0.01% |
Figures are in USDC NEAR per unit sent, from market data.
Daily USDT Optimism → USDC NEAR rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 18, 2026 | 0.999642 USDC NEAR | 0% |
| Sep 17, 2026 | 0.999675 USDC NEAR | 0% |
| Sep 16, 2026 | 0.999723 USDC NEAR | −0.03% |
| Sep 15, 2026 | 0.999985 USDC NEAR | +0.01% |
| Sep 14, 2026 | 0.999848 USDC NEAR | −0.01% |
| Sep 13, 2026 | 0.999949 USDC NEAR | 0% |
| Sep 12, 2026 | 0.999966 USDC NEAR | +0.02% |
Daily RubyCash rate: USDT Optimism → USDC NEAR
| Date | RubyCash rate | Market rate |
|---|---|---|
| Sep 18, 2026 | 0.999301 USDC NEAR | 0.99964 |
| Sep 17, 2026 | 0.999201 USDC NEAR | 0.999663 |
| Sep 16, 2026 | 0.9995 USDC NEAR | 0.999666 |
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 USDT and USDC
- 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
- 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
Source: CoinGecko, Sep 18, 2026 05:24.
Tether against USD Coin
| Tether (USDT) | USD Coin (USDC) | |
|---|---|---|
| Ticker | USDT | USDC |
| Type | token | token |
| Network | Optimism | NEAR |
| Fees are paid in | ETH | — |
| Launched | 2014 | 2018 |
| Built by | Tether Limited | Circle |
| Supply cap | no cap | no cap |
| In circulation | 183.44 B USDT | 73.9 B USDC |
| Market cap | $183.29 B | $73.87 B |
| Rank by cap | #3 | #6 |
Daily moves of USDT and USDC over 90 days line up at 0.15 — they travel apart.