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%
You get 0.999201 USDC NEAR
Start the order
Rate
1 USDT Optimism = 0.999201 USDC NEAR
Up to
10,000,000 USDT Optimism

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

1 USDT Optimism = 0.999201 USDC NEAR
1 USDC NEAR = 1.0008 USDT Optimism

Send USDT Optimism — receive USDC NEAR

USDT OptimismUSDC NEAR
2019.984
10099.9201
500499.6004
5,0004,996
20,00019,984.01
100,00099,920.07

Need USDC NEAR — send this much USDT Optimism

USDC NEARUSDT Optimism
2020.016
100100.08
500500.4
5,0005,004
20,00020,016
100,000100,079.99

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.

NetworkPer USDT OptimismFromNetwork feeSpeed
Ethereum (ERC20)0.999201200 USDT Optimism≈ $0.0099medium
Solana0.999201200 USDT Optimism≈ $0.00051fast
Polygon0.999201200 USDT Optimism≈ $0.0018fast
Arbitrum One0.999201≈ $0.0032fast
BASE0.999201
BNB Smart Chain (BEP20)0.999201≈ $0.0024fast
Avalanche C-Chain0.999201≈ < $0.0001fast
NEAR open now0.999201
Optimism0.999201≈ $0.00016fast
XLM0.999201

How the USDT Optimism → USDC NEAR order runs

  1. Work out the amount in the calculator and press the exchange button.
  2. Enter a USDC address in NEAR and a way to reach you.
  3. Send USDT Optimism in Optimism for exactly the amount stated in the order.
  4. Once the network confirms your transfer, USD Coin leaves for your address. The order page tracks every step.

Swap USDT Optimism for USDC NEAR

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

high 0.999993 USDC NEARlow 0.999555 USDC NEAR
Sep 11, 2026 05:43Sep 18, 2026 05:43
high 1.0002 USDC NEARlow 0.999642 USDC NEAR
Aug 19, 2026 03:00Sep 18, 2026 03:00
high 1.0002 USDC NEARlow 0.999327 USDC NEAR
Jun 20, 2026 03:00Sep 18, 2026 03:00
high 1.0017 USDC NEARlow 0.996801 USDC NEAR
Sep 19, 2025 03:00Sep 18, 2026 03:00
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

PeriodHighLowMiddleNet move
24 hours0.9996810.9995550.9996230%
Week0.9999930.9995550.9998160%
Month1.00020.9996420.9999170%
Quarter1.00020.9993270.999707−0.01%

Figures are in USDC NEAR per unit sent, from market data.

Daily USDT Optimism → USDC NEAR rate

DayCloseAgainst the day before
Sep 18, 20260.999642 USDC NEAR0%
Sep 17, 20260.999675 USDC NEAR0%
Sep 16, 20260.999723 USDC NEAR−0.03%
Sep 15, 20260.999985 USDC NEAR+0.01%
Sep 14, 20260.999848 USDC NEAR−0.01%
Sep 13, 20260.999949 USDC NEAR0%
Sep 12, 20260.999966 USDC NEAR+0.02%

Daily RubyCash rate: USDT Optimism → USDC NEAR

DateRubyCash rateMarket rate
Sep 18, 20260.999301 USDC NEAR0.99964
Sep 17, 20260.999201 USDC NEAR0.999663
Sep 16, 20260.9995 USDC NEAR0.999666

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

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
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

Source: CoinGecko, Sep 18, 2026 05:24.

Tether against USD Coin

Tether (USDT)USD Coin (USDC)
TickerUSDTUSDC
Typetokentoken
NetworkOptimismNEAR
Fees are paid inETH
Launched20142018
Built byTether LimitedCircle
Supply capno capno cap
In circulation183.44 B USDT73.9 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.

Common questions: USDT Optimism → USDC NEAR

What rate does USDT Optimism to USDC NEAR run at?
As of Sep 18, 2026 05:38 it is 1 USDT Optimism = 0.999201 USDC NEAR. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.998768.
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 USDT Optimism, and that one goes to the blockchain, not to us.
How long does USDT Optimism to USDC NEAR 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 USDC NEAR arrive in?
The payout leaves in NEAR. Make sure the receiving wallet works with that network.
Where is receiving USDC cheaper?
The cheapest is usually USDC SOL, USDC Polygon, USDC Arbitrum, USDC BEP20, USDC AVAX C, USDC 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 USDT Optimism to USDC NEAR rate do this month?
The month came in at a move of 0%. Low 0.999642, high 1.0002, middle 0.999917 USDC NEAR per USDT Optimism.
Can I go back, USDC NEAR to USDT Optimism?
Yes, the reverse direction is open: 1 USDC NEAR = 1.001 USDT Optimism. The link sits right under the calculator.

Worth reading

Choose file
Give
Get
Exchange
days
hours