USDT AVAX C (Avalanche C-Chain) → USDC Optimism (OP Mainnet (Optimism))

Dollars change networks: send USDT AVAX C in Avalanche C-Chain, collect USDC Optimism in OP Mainnet (Optimism). One order.

Rate as of Sep 17, 2026 08:18

Payout network
Optimism
24 hours
−0.01%
You get 0.9995 USDC Optimism
Start the order
Rate
1 USDT AVAX C = 0.9995 USDC Optimism
Up to
10,000,000 USDT AVAX C

The figure is indicative; the exact amount is locked in the order.

One USDT AVAX C buys 0.9995 USDC Optimism right now; the other way round, 1 USDC Optimism is 1.0005 USDT AVAX C. Market over 24 hours: USDT AVAX C against USDC Optimism minus 0.01%. The week added minus 0.02%.

The weekly corridor ran from 0.999474 to 0.999997 USDC 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 Tether sits 3th ($183.3 B) and USD Coin 6th ($73.67 B). Daily moves of USDT and USDC over 90 days line up at 0.16 (they travel apart).

Who takes the USDT AVAX C → USDC Optimism route

  • A road both waysThe USDC Optimism → USDT AVAX C direction is open too, so going back into USDT takes the same route.

USDT AVAX C → USDC Optimism rate and amounts

1 USDT AVAX C = 0.9995 USDC Optimism
1 USDC Optimism = 1.0005 USDT AVAX C

Send USDT AVAX C — receive USDC Optimism

USDT AVAX CUSDC Optimism
2019.99
10099.95
500499.7502
5,0004,997.5
20,00019,990.01
100,00099,950.03

Need USDC Optimism — send this much USDT AVAX C

USDC OptimismUSDT AVAX C
2020.01
100100.05
500500.25
5,0005,002.5
20,00020,010
100,000100,049.99

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 AVAX CFromNetwork feeSpeed
Ethereum (ERC20)0.9995200 USDT AVAX C≈ $0.0077medium
Solana0.9995200 USDT AVAX C≈ $0.0005fast
Polygon0.9995200 USDT AVAX C≈ $0.0018fast
Arbitrum One0.9995≈ $0.0032fast
BASE0.9995
BNB Smart Chain (BEP20)0.9995≈ $0.0024fast
Avalanche C-Chain0.9995≈ < $0.0001fast
NEAR0.9995
Optimism open now0.9995≈ $0.00016fast
XLM0.9995

How the USDT AVAX C → USDC Optimism order runs

  1. Work out the amount in the calculator and press the exchange button.
  2. Enter a USDC address in Optimism and a way to reach you.
  3. Send USDT AVAX C in Avalanche C-Chain 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 AVAX C for USDC Optimism

Check this before sending USDT AVAX C

  • 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.
  • Ethereum, Arbitrum, Optimism, BNB Smart Chain and Polygon all use the same address shape (0x…). Make sure the wallet is switched to OP Mainnet (Optimism).
  • To move USDC on later, put a little ETH at the same address.
  • Coins go through an AML check: a flagged transfer can be held until the check is finished.

Avalanche C-Chain against OP Mainnet (Optimism)

Avalanche C-ChainOP Mainnet (Optimism)
Network typeLayer one (L1)L2, optimistic rollup
Fees are paid inAVAXETH
Fee level≈ < $0.0001≈ $0.00016
Speedfastfast
Block~2 sec
Address shape0x…0x…
Memo or tagnot needednot needed
Ethereum-style address (0x…)yesyes
Official withdrawal to Ethereum≈ 7 days (challenge period)

Fee and speed levels are comparative: both move with how busy the network is.

How this differs from a classic bridge

RubyCashClassic bridge
What lands at your addressUSDC in OP Mainnet (Optimism)The same stablecoin; turning USDT into USDC is a separate step
Wallet and signaturesNot needed: the coins go to the address from the orderNeeded: connect the wallet and sign contract transactions
A coin for fees in OP Mainnet (Optimism)Not needed to receiveOften needed, or the funds cannot be claimed or moved on
TimingAfter confirmations in Avalanche C-Chain; the order page tracks itDepends on the bridge and the load of both networks
Who holds the funds meanwhileRubyCash for the life of the order, with an AML checkThe bridge contract or its validators

Where the USDT AVAX C to USDC Optimism rate has been

high 0.999997 USDC Optimismlow 0.999474 USDC Optimism
Sep 10, 2026 08:22Sep 17, 2026 08:22
high 1.0002 USDC Optimismlow 0.999577 USDC Optimism
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 1.0002 USDC Optimismlow 0.999327 USDC Optimism
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 1.0017 USDC Optimismlow 0.996801 USDC Optimism
Sep 18, 2025 03:00Sep 17, 2026 03:00
24 hours
−0.01%
Week
−0.02%
Weekly high
0.999997 USDC Optimism
Weekly low
0.999474 USDC Optimism
Spread
0.05%

Market data from CoinGecko as of Sep 17, 2026 06:24; the exchange rate is calculated separately and differs. Where these numbers come from

How far USDT AVAX C/USDC Optimism travelled, by period

PeriodHighLowMiddleNet move
24 hours0.9997310.9995970.999663−0.01%
Week0.9999970.9994740.999837−0.02%
Month1.00020.9995770.9999120%
Quarter1.00020.9993270.9997050%

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

Daily USDT AVAX C → USDC Optimism rate

DayCloseAgainst the day before
Sep 17, 20260.999591 USDC Optimism−0.01%
Sep 16, 20260.999723 USDC Optimism−0.03%
Sep 15, 20260.999985 USDC Optimism+0.01%
Sep 14, 20260.999848 USDC Optimism−0.01%
Sep 13, 20260.999949 USDC Optimism0%
Sep 12, 20260.999966 USDC Optimism+0.02%
Sep 11, 20260.999808 USDC Optimism0%

The numbers on USDT and USDC

Tether USDT
Price
$0.999228
24 hours
−0.01%
Week
0%
Market cap
$183.3 B
24-hour turnover
$60.5 B
Rank by cap
#3
In circulation
183.44 B USDT
Record price
$1.32
USD Coin USDC
Price
$0.999615
24 hours
−0.01%
Week
0%
Market cap
$73.67 B
24-hour turnover
$18.4 B
Rank by cap
#6
In circulation
73.7 B USDC
Record price
$1.04

Source: CoinGecko, Sep 17, 2026 06:24.

Tether against USD Coin

Tether (USDT)USD Coin (USDC)
TickerUSDTUSDC
Typetokentoken
NetworkAvalanche C-ChainOptimism
Fees are paid inAVAXETH
Launched20142018
Built byTether LimitedCircle
Supply capno capno cap
In circulation183.44 B USDT73.7 B USDC
Market cap$183.3 B$73.67 B
Rank by cap#3#6

Daily moves of USDT and USDC over 90 days line up at 0.16 — they travel apart.

Common questions: USDT AVAX C → USDC Optimism

What rate does USDT AVAX C to USDC Optimism run at?
As of Sep 17, 2026 08:18 it is 1 USDT AVAX C = 0.9995 USDC Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.999116.
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 AVAX C, and that one goes to the blockchain, not to us.
How long does USDT AVAX C to USDC Optimism take?
The clock starts with confirmations: the order goes into work once Avalanche C-Chain confirms your transfer. After that it comes down to how busy the network is.
Which network will USDC Optimism arrive in?
The payout leaves in Optimism. 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.
Will native USDC arrive, or a wrapper?
USDC Optimism is the standard USDC token in OP Mainnet (Optimism) — exactly what exchanges send when they withdraw into this network.
Do I need ETH to receive USDC Optimism?
Not to receive. ETH comes into play later, when you want to send USDC from your address.
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 AVAX C to USDC Optimism rate do this month?
The month came in at a move of 0%. Low 0.999577, high 1.0002, middle 0.999912 USDC Optimism per USDT AVAX C.
Can I go back, USDC Optimism to USDT AVAX C?
Yes, the reverse direction is open: 1 USDC Optimism = 1.0007 USDT AVAX C. The link sits right under the calculator.

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