Swap Starknet (STRK ERC20) for USD Coin (USDC Optimism)
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 17, 2026 13:48
- Payout network
- Optimism
- 24 hours
- +5.79%
You get
USDC Optimism
Start the order
USDC Optimism
The figure is indicative; the exact amount is locked in the order.
One STRK ERC20 buys 0.027939 USDC Optimism right now; the other way round, 1 USDC Optimism is 35.7923 STRK ERC20. Market over 24 hours: STRK ERC20 against USDC Optimism plus 5.79%. The week added minus 7.41%.
The weekly corridor ran from 0.0262785 to 0.0296666 USDC Optimism, a spread of 12.89%.
The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap Starknet sits 171th ($206.31 M) and USD Coin 6th ($73.6 B). Daily moves of STRK and USDC over 90 days line up at -0.02 (they travel apart).
Who takes the STRK ERC20 → USDC Optimism route
- Sitting out the swingsSTRK moved +21.69% over the past month. USDC tracks the dollar, so after the swap the value stops following STRK.
- A road both waysThe USDC Optimism → STRK ERC20 direction is open too, so going back into STRK takes the same route.
STRK ERC20 → USDC Optimism rate and amounts
1 STRK ERC20 = 0.027939 USDC Optimism
1 USDC Optimism = 35.7923 STRK ERC20
Send STRK ERC20 — receive USDC Optimism
| STRK ERC20 | USDC Optimism |
|---|---|
| 500 | 13.9695 |
| 2,000 | 55.878 |
| 10,000 | 279.3898 |
| 100,000 | 2,793.9 |
| 500,000 | 13,969.49 |
| 2,000,000 | 55,877.96 |
Need USDC Optimism — send this much STRK ERC20
| USDC Optimism | STRK ERC20 |
|---|---|
| 20 | 715.8458 |
| 100 | 3,579.23 |
| 500 | 17,896.14 |
| 5,000 | 178,961.44 |
| 20,000 | 715,845.76 |
| 100,000 | 3,579,228.82 |
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 STRK ERC20 | From | Network fee | Speed |
|---|---|---|---|---|
| Ethereum (ERC20) | 0.027939 | 7,429.42 STRK ERC20 | ≈ $0.076 | medium |
| Solana | 0.027939 | 7,429.42 STRK ERC20 | ≈ $0.0005 | fast |
| Polygon | 0.027939 | 7,429.42 STRK ERC20 | ≈ $0.0017 | fast |
| Arbitrum One | 0.027939 | — | ≈ $0.0032 | fast |
| BASE | 0.027939 | — | — | — |
| BNB Smart Chain (BEP20) | 0.027939 | — | ≈ $0.0024 | fast |
| Avalanche C-Chain | 0.027939 | — | ≈ < $0.0001 | fast |
| NEAR | 0.027939 | — | — | — |
| Optimism open now | 0.027939 | — | ≈ $0.00018 | fast |
| XLM | 0.027939 | — | — | — |
How the STRK ERC20 → USDC Optimism order runs
- Work out the amount in the calculator and press the exchange button.
- Enter a USDC address in Optimism and a way to reach you.
- Send STRK ERC20 in Ethereum (ERC20) 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 STRK ERC20
- 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.
- Coins go through an AML check: a flagged transfer can be held until the check is finished.
Where the STRK ERC20 to USDC Optimism rate has been
high 0.0296666 USDC Optimismlow 0.0262785 USDC Optimism
Sep 10, 2026 13:50Sep 17, 2026 13:50
high 0.0319024 USDC Optimismlow 0.0224563 USDC Optimism
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 0.035508 USDC Optimismlow 0.0224563 USDC Optimism
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 0.24803 USDC Optimismlow 0.0224563 USDC Optimism
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- +5.79%
- Week
- −7.41%
- Weekly high
- 0.0296666 USDC Optimism
- Weekly low
- 0.0262785 USDC Optimism
- Spread
- 12.89%
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 STRK ERC20/USDC Optimism travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.0282824 | 0.0263373 | 0.027233 | +5.79% |
| Week | 0.0296666 | 0.0262785 | 0.0283764 | −7.41% |
| Month | 0.0319024 | 0.0224563 | 0.0272765 | +21.7% |
| Quarter | 0.035508 | 0.0224563 | 0.0280541 | −21.1% |
Figures are in USDC Optimism per unit sent, from market data.
Daily STRK ERC20 → USDC Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 0.0280154 USDC Optimism | +5.19% |
| Sep 16, 2026 | 0.0266338 USDC Optimism | −7.64% |
| Sep 15, 2026 | 0.0288376 USDC Optimism | +2.98% |
| Sep 14, 2026 | 0.0280029 USDC Optimism | −3.09% |
| Sep 13, 2026 | 0.0288973 USDC Optimism | +0.95% |
| Sep 12, 2026 | 0.028624 USDC Optimism | +2.32% |
| Sep 11, 2026 | 0.0279761 USDC Optimism | −10.55% |
The numbers on STRK and USDC
Starknet STRK- Price
- $0.0280497
- 24 hours
- +5.78%
- Week
- −7.7%
- Market cap
- $206.31 M
- 24-hour turnover
- $24.38 M
- Rank by cap
- #171
- In circulation
- 7.35 B STRK
- Record price
- $4.41
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.
Starknet against USD Coin
| Starknet (STRK) | USD Coin (USDC) | |
|---|---|---|
| Ticker | STRK | USDC |
| Network | Ethereum (ERC20) | Optimism |
| Fees are paid in | ETH | ETH |
| In circulation | 7.35 B STRK | 73.64 B USDC |
| Market cap | $206.31 M | $73.6 B |
| Rank by cap | #171 | #6 |
| Type | — | token |
| Launched | — | 2018 |
| Built by | — | Circle |
| Supply cap | — | no cap |
Daily moves of STRK and USDC over 90 days line up at -0.02 — they travel apart.
Common questions: STRK ERC20 → USDC Optimism
What rate does STRK ERC20 to USDC Optimism run at?
As of Sep 17, 2026 13:48 it is 1 STRK ERC20 = 0.027939 USDC Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.0279264.
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 STRK ERC20, and that one goes to the blockchain, not to us.
How long does STRK ERC20 to USDC Optimism take?
The clock starts with confirmations: the order goes into work once Ethereum (ERC20) 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.
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 STRK ERC20 to USDC Optimism rate do this month?
The month came in at plus 21.7%. Low 0.0224563, high 0.0319024, middle 0.0272765 USDC Optimism per STRK ERC20.
Can I go back, USDC Optimism to STRK ERC20?
Yes, the reverse direction is open: 1 USDC Optimism = 35.9724 STRK ERC20. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
Send STRK ERC20, receive something else
STRK ERC20 → USDS0.0279418
STRK ERC20 → USDT Arbitrum0.0279502- STRK ERC20 → USDT BEP200.0279502
- STRK ERC20 → USDT AVAX C0.0279502
- STRK ERC20 → USDT ERC200.0279502
- STRK ERC20 → USDT NEAR0.0279502
- STRK ERC20 → USDT OMNI0.0279502
- STRK ERC20 → USDT Optimism0.0279502
