USDT Optimism (OP Mainnet (Optimism)) → USDC Polygon (Polygon PoS)
Dollars change networks: send USDT Optimism in OP Mainnet (Optimism), collect USDC Polygon in Polygon PoS. One order.
Rate as of Sep 17, 2026 15:43
- Orders from
- 200 USDT Optimism ≈ $199.82
- Payout network
- Polygon
- 24 hours
- −0.01%
You get
USDC Polygon
Start the order
USDC Polygon
The figure is indicative; the exact amount is locked in the order.
One USDT Optimism buys 0.9997 USDC Polygon right now; the other way round, 1 USDC Polygon is 1.0003 USDT Optimism. Market over 24 hours: USDT Optimism against USDC Polygon minus 0.01%. The week added minus 0.04%.
The weekly corridor ran from 0.999575 to 0.999993 USDC Polygon, a spread of 0.04%. A single order takes 200 to 10,000,000 USDT Optimism. In dollars that is roughly $199.82.
The payout leaves in the Polygon network, so the receiving address has to belong to that network. By market cap Tether sits 3th ($183.28 B) and USD Coin 6th ($73.6 B). Daily moves of USDT and USDC over 90 days line up at 0.16 (they travel apart).
Who takes the USDT Optimism → USDC Polygon route
- A road both waysThe USDC Polygon → USDT Optimism direction is open too, so going back into USDT takes the same route.
USDT Optimism → USDC Polygon rate and amounts
1 USDT Optimism = 0.9997 USDC Polygon
1 USDC Polygon = 1.0003 USDT Optimism
Send USDT Optimism — receive USDC Polygon
| USDT Optimism | USDC Polygon |
|---|---|
| 200 | 199.94 |
| 1,000 | 999.7001 |
| 2,000 | 1,999.4 |
| 10,000 | 9,997 |
| 20,000 | 19,994 |
| 100,000 | 99,970.01 |
Need USDC Polygon — send this much USDT Optimism
| USDC Polygon | USDT Optimism |
|---|---|
| 200 | 200.06 |
| 1,000 | 1,000.3 |
| 2,000 | 2,000.6 |
| 10,000 | 10,003 |
| 20,000 | 20,006 |
| 100,000 | 100,030 |
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) | 0.9997 | 200 USDT Optimism | ≈ $0.056 | medium |
| Solana | 0.9997 | 200 USDT Optimism | ≈ $0.0005 | fast |
| Polygon open now | 0.9997 | 200 USDT Optimism | ≈ $0.0017 | fast |
| Arbitrum One | 0.9997 | — | ≈ $0.0032 | fast |
| BASE | 0.9997 | — | — | — |
| BNB Smart Chain (BEP20) | 0.9997 | — | ≈ $0.0024 | fast |
| Avalanche C-Chain | 0.9997 | — | ≈ < $0.0001 | fast |
| NEAR | 0.9997 | — | — | — |
| Optimism | 0.9997 | — | ≈ $0.00017 | fast |
| XLM | 0.9997 | — | — | — |
How the USDT Optimism → USDC Polygon order runs
- Work out the amount in the calculator: orders start at 200 USDT Optimism.
- Enter a USDC address in Polygon 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 Polygon. Sending through another network usually means losing the transfer.
- The transfer must not be smaller than 200 USDT 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 USDC 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 type | L2, optimistic rollup | Sidechain with checkpoints in Ethereum |
| Fees are paid in | ETH | POL |
| Fee level | ≈ $0.00017 | ≈ $0.0017 |
| Speed | fast | fast |
| Block | ~2 sec | ~2 sec |
| Address shape | 0x… | 0x… |
| Memo or tag | not needed | not needed |
| Ethereum-style address (0x…) | yes | yes |
| 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
| RubyCash | Classic bridge | |
|---|---|---|
| What lands at your address | USDC in Polygon PoS | The same stablecoin; turning USDT into USDC is a separate step |
| Wallet and signatures | Not needed: the coins go to the address from the order | Needed: connect the wallet and sign contract transactions |
| A coin for fees in Polygon PoS | Not needed to receive | Often needed, or the funds cannot be claimed or moved on |
| Timing | After confirmations in OP Mainnet (Optimism); the order page tracks it | Depends on the bridge and the load of both networks |
| Who holds the funds meanwhile | RubyCash for the life of the order, with an AML check | The bridge contract or its validators |
Bridge OP Mainnet (Optimism) → Polygon PoS: all directions The Polygon PoS network
Where the USDT Optimism to USDC Polygon rate has been
high 0.999993 USDC Polygonlow 0.999575 USDC Polygon
Sep 10, 2026 15:45Sep 17, 2026 15:45
high 1.0002 USDC Polygonlow 0.999577 USDC Polygon
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 1.0002 USDC Polygonlow 0.999327 USDC Polygon
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 1.0017 USDC Polygonlow 0.996801 USDC Polygon
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- −0.01%
- Week
- −0.04%
- Weekly high
- 0.999993 USDC Polygon
- Weekly low
- 0.999575 USDC Polygon
- Spread
- 0.04%
Market data from CoinGecko as of Sep 17, 2026 11:54; the exchange rate is calculated separately and differs. Where these numbers come from
How far USDT Optimism/USDC Polygon travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.99975 | 0.999575 | 0.999647 | −0.01% |
| Week | 0.999993 | 0.999575 | 0.999838 | −0.04% |
| Month | 1.0002 | 0.999577 | 0.999912 | 0% |
| Quarter | 1.0002 | 0.999327 | 0.999705 | 0% |
Figures are in USDC Polygon per unit sent, from market data.
Daily USDT Optimism → USDC Polygon rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 0.999591 USDC Polygon | −0.01% |
| Sep 16, 2026 | 0.999723 USDC Polygon | −0.03% |
| Sep 15, 2026 | 0.999985 USDC Polygon | +0.01% |
| Sep 14, 2026 | 0.999848 USDC Polygon | −0.01% |
| Sep 13, 2026 | 0.999949 USDC Polygon | 0% |
| Sep 12, 2026 | 0.999966 USDC Polygon | +0.02% |
| Sep 11, 2026 | 0.999808 USDC Polygon | 0% |
The numbers on USDT and USDC
Tether USDT- Price
- $0.999122
- 24 hours
- −0.02%
- Week
- 0%
- Market cap
- $183.28 B
- 24-hour turnover
- $58.85 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
USD Coin USDC- Price
- $0.999551
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $73.6 B
- 24-hour turnover
- $18.23 B
- Rank by cap
- #6
- In circulation
- 73.64 B USDC
- Record price
- $1.04
Source: CoinGecko, Sep 17, 2026 11:54.
Tether against USD Coin
| Tether (USDT) | USD Coin (USDC) | |
|---|---|---|
| Ticker | USDT | USDC |
| Type | token | token |
| Network | Optimism | Polygon |
| Fees are paid in | ETH | POL |
| Launched | 2014 | 2018 |
| Built by | Tether Limited | Circle |
| Supply cap | no cap | no cap |
| In circulation | 183.44 B USDT | 73.64 B USDC |
| Market cap | $183.28 B | $73.6 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 Optimism → USDC Polygon
What rate does USDT Optimism to USDC Polygon run at?
As of Sep 17, 2026 15:43 it is 1 USDT Optimism = 0.9997 USDC Polygon. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.999251.
What amounts does USDT Optimism → USDC Polygon accept?
From 200 to 10,000,000 USDT Optimism per order. The lower limit is roughly $199.82.
Where does the 200 USDT Optimism floor come from?
Network fees and order handling eat a small transfer alive — below 200 USDT 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 USDT Optimism, and that one goes to the blockchain, not to us.
How long does USDT Optimism to USDC 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 USDC arrive, or a wrapper?
USDC Polygon is the standard USDC token in Polygon PoS — exactly what exchanges send when they withdraw into this network.
Do I need POL to receive USDC Polygon?
Not to receive. POL comes into play later, when you want to send USDC from your address.
Which network will USDC Polygon arrive in?
The payout leaves in Polygon. 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 Polygon rate do this month?
The month came in at a move of 0%. Low 0.999577, high 1.0002, middle 0.999912 USDC Polygon per USDT Optimism.
Can I go back, USDC Polygon to USDT Optimism?
Yes, the reverse direction is open: 1 USDC Polygon = 1.0005 USDT Optimism. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
Send USDT Optimism, receive something else
USDT Optimism → USDS0.9994- USDT Optimism → USDT Arbitrum1.0001
- USDT Optimism → USDT BEP201.0001
- USDT Optimism → USDT AVAX C1.0001
- USDT Optimism → USDT ERC201.0001
- USDT Optimism → USDT NEAR1.0001
- USDT Optimism → USDT OMNI1.0001
- USDT Optimism → USDT Polygon1.0001
Receive USDC Polygon, send something else
- USDT Polygon → USDC Polygon0.997794
- USDT SOL → USDC Polygon0.997794
- USDT TON → USDC Polygon0.997794
- USDT TRC20 → USDC Polygon0.997794
WIF → USDC Polygon0.185766
XAI → USDC Polygon0.00701481
XAUT → USDC Polygon4,372.25
XLM → USDC Polygon0.185341
USDT Optimism USDC Polygon All directions All currencies
Tether (USDT) against USD Coin (USDC)
Bridge OP Mainnet (Optimism) → Polygon PoS: all directions All bridges