USDC Optimism (OP Mainnet (Optimism)) → USDT Polygon (Polygon PoS)

Dollars change networks: send USDC Optimism in OP Mainnet (Optimism), collect USDT Polygon in Polygon PoS. One order.

Rate as of Sep 17, 2026 02:28

Orders from
200 USDC Optimism ≈ $199.94
Payout network
Polygon
24 hours
+0.01%
You get 2,001.6 USDT Polygon
Start the order
Rate
1 USDC Optimism = 1.0008 USDT Polygon
From
200 USDC Optimism
Up to
10,000,000 USDC Optimism

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

Today USDC Optimism goes for 1.0008 USDT Polygon, and USDT Polygon goes for 0.999201 USDC Optimism. Market over 24 hours: USDC Optimism against USDT Polygon plus 0.01%. The week added plus 0.04%.

The weekly corridor ran from 1 to 1.0005 USDT Polygon, a spread of 0.05%. A single order takes 200 to 10,000,000 USDC Optimism. In dollars that is roughly $199.94.

The payout leaves in the Polygon network, so the receiving address has to belong to that network. By market cap USD Coin sits 6th ($73.61 B) and Tether 3th ($183.33 B).

Who takes the USDC Optimism → USDT Polygon route

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

USDC Optimism → USDT Polygon rate and amounts

1 USDC Optimism = 1.0008 USDT Polygon
1 USDT Polygon = 0.999201 USDC Optimism

Send USDC Optimism — receive USDT Polygon

USDC OptimismUSDT Polygon
200200.16
1,0001,000.8
2,0002,001.6
10,00010,008
20,00020,016
100,000100,080

Need USDT Polygon — send this much USDC Optimism

USDT PolygonUSDC Optimism
500499.6003
1,000999.2006
5,0004,996
10,0009,992.01
50,00049,960.03
100,00099,920.06

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.

NetworkPer USDC OptimismFromNetwork feeSpeed
OMNI1.0008
Ethereum (ERC20)1.0008200 USDC Optimism≈ $0.0093medium
TRON (TRC20)1.0008200 USDC Optimism≈ $2.3fast
BNB Smart Chain (BEP20)1.0008200 USDC Optimism≈ $0.0023fast
Solana1.0008200 USDC Optimism≈ $0.00049fast
Polygon open now1.0008200 USDC Optimism≈ $0.0017fast
Arbitrum One1.0008200 USDC Optimism≈ $0.0031fast
TON1.0008200 USDC Optimismlowfast
Avalanche C-Chain1.0008≈ < $0.0001fast
NEAR1.0008
Optimism1.0008≈ $0.00016fast

How the USDC Optimism → USDT Polygon order runs

  1. Work out the amount in the calculator: orders start at 200 USDC Optimism.
  2. Enter a USDT address in Polygon and a way to reach you.
  3. Send USDC Optimism in Optimism for exactly the amount stated in the order.
  4. Once the network confirms your transfer, Tether leaves for your address. The order page tracks every step.

Swap USDC Optimism for USDT Polygon

Check this before sending USDC Optimism

  • The address network is Polygon. Sending through another network usually means losing the transfer.
  • The transfer must not be smaller than 200 USDC Optimism.
  • 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 Polygon PoS.
  • To move USDT on later, put a little POL at the same address.
  • Coins go through an AML check: a flagged transfer can be held until the check is finished.

OP Mainnet (Optimism) against Polygon PoS

OP Mainnet (Optimism)Polygon PoS
Network typeL2, optimistic rollupSidechain with checkpoints in Ethereum
Fees are paid inETHPOL
Fee level≈ $0.00016≈ $0.0017
Speedfastfast
Block~2 sec~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 addressUSDT in Polygon PoSThe 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 Polygon PoSNot needed to receiveOften needed, or the funds cannot be claimed or moved on
TimingAfter confirmations in OP Mainnet (Optimism); 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 USDC Optimism to USDT Polygon rate has been

high 1.0005 USDT Polygonlow 1 USDT Polygon
Sep 10, 2026 02:29Sep 17, 2026 02:29
24 hours
+0.01%
Week
+0.04%
Weekly high
1.0005 USDT Polygon
Weekly low
1 USDT Polygon
Spread
0.05%

Market data from CoinGecko as of Sep 17, 2026 00:54; the exchange rate is calculated separately and differs. Where these numbers come from

How far USDC Optimism/USDT Polygon travelled, by period

PeriodHighLowMiddleNet move
24 hours1.00041.00031.0003+0.01%
Week1.000511.0002+0.04%

Figures are in USDT Polygon per unit sent, from market data.

The numbers on USDC and USDT

USD Coin USDC
Price
$0.999724
24 hours
0%
Week
0%
Market cap
$73.61 B
24-hour turnover
$18.36 B
Rank by cap
#6
In circulation
73.63 B USDC
Record price
$1.04
Tether USDT
Price
$0.99939
24 hours
−0.01%
Week
−0.1%
Market cap
$183.33 B
24-hour turnover
$59.59 B
Rank by cap
#3
In circulation
183.44 B USDT
Record price
$1.32

Source: CoinGecko, Sep 17, 2026 00:54.

USD Coin against Tether

USD Coin (USDC)Tether (USDT)
TickerUSDCUSDT
Typetokentoken
NetworkOptimismPolygon
Fees are paid inETHPOL
Launched20182014
Built byCircleTether Limited
Supply capno capno cap
In circulation73.63 B USDC183.44 B USDT
Market cap$73.61 B$183.33 B
Rank by cap#6#3

Common questions: USDC Optimism → USDT Polygon

What rate does USDC Optimism to USDT Polygon run at?
As of Sep 17, 2026 02:28 it is 1 USDC Optimism = 1.0008 USDT Polygon. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $1.00.
What amounts does USDC Optimism → USDT Polygon accept?
From 200 to 10,000,000 USDC Optimism per order. The lower limit is roughly $199.94.
Where does the 200 USDC Optimism floor come from?
Network fees and order handling eat a small transfer alive — below 200 USDC Optimism the swap stops making sense for either side.
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 Polygon 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. A block in Optimism closes in about 2 sec.
Will native USDT arrive, or a wrapper?
USDT Polygon is the standard USDT token in Polygon PoS — exactly what exchanges send when they withdraw into this network.
Do I need POL to receive USDT Polygon?
Not to receive. POL comes into play later, when you want to send USDT from your address.
Which network will USDT Polygon arrive in?
The payout leaves in Polygon. 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.
Can I go back, USDT Polygon to USDC Optimism?
Yes, the reverse direction is open: 1 USDT Polygon = 0.9994 USDC Optimism. The link sits right under the calculator.

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