Swap Arbitrum (ARB) 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 23:13
- Payout network
- Optimism
- 24 hours
- +10.79%
The figure is indicative; the exact amount is locked in the order.
One ARB buys 0.175467 USDC Optimism right now; the other way round, 1 USDC Optimism is 5.6991 ARB. Market over 24 hours: ARB against USDC Optimism plus 10.79%. The week added plus 22.33%.
The weekly corridor ran from 0.132576 to 0.183425 USDC Optimism, a spread of 38.35%.
The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap Arbitrum sits 69th ($1.2 B) and USD Coin 6th ($73.68 B). Daily moves of ARB and USDC over 90 days line up at -0.01 (they travel apart).
Who takes the ARB → USDC Optimism route
- Sitting out the swingsARB moved +120.09% over the past month. USDC tracks the dollar, so after the swap the value stops following ARB.
- A road both waysThe USDC Optimism → ARB direction is open too, so going back into ARB takes the same route.
ARB → USDC Optimism rate and amounts
Send ARB — receive USDC Optimism
| ARB | USDC Optimism |
|---|---|
| 100 | 17.5467 |
| 500 | 87.7334 |
| 2,000 | 350.9336 |
| 20,000 | 3,509.34 |
| 100,000 | 17,546.68 |
| 500,000 | 87,733.41 |
Need USDC Optimism — send this much ARB
| USDC Optimism | ARB |
|---|---|
| 20 | 113.9817 |
| 100 | 569.9083 |
| 500 | 2,849.54 |
| 5,000 | 28,495.42 |
| 20,000 | 113,981.66 |
| 100,000 | 569,908.31 |
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 ARB | From | Network fee | Speed |
|---|---|---|---|---|
| Ethereum (ERC20) | 0.175467 | 1,328.9 ARB | ≈ $0.018 | medium |
| Solana | 0.175467 | 1,328.9 ARB | ≈ $0.0005 | fast |
| Polygon | 0.175467 | 1,328.9 ARB | ≈ $0.0018 | fast |
| Arbitrum One | 0.175467 | — | ≈ $0.0032 | fast |
| BASE | 0.175467 | — | — | — |
| BNB Smart Chain (BEP20) | 0.175467 | — | ≈ $0.0024 | fast |
| Avalanche C-Chain | 0.175467 | — | ≈ < $0.0001 | fast |
| NEAR | 0.175467 | — | — | — |
| Optimism open now | 0.175467 | — | ≈ $0.00016 | fast |
| XLM | 0.175467 | — | — | — |
How the ARB → 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 ARB in Arbitrum 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 ARB
- 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 ARB to USDC Optimism rate has been
- 24 hours
- +10.79%
- Week
- +22.33%
- Weekly high
- 0.183425 USDC Optimism
- Weekly low
- 0.132576 USDC Optimism
- Spread
- 38.35%
Market data from CoinGecko as of Sep 17, 2026 22:24; the exchange rate is calculated separately and differs. Where these numbers come from
How far ARB/USDC Optimism travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.183425 | 0.163137 | 0.166816 | +10.79% |
| Week | 0.183425 | 0.132576 | 0.146008 | +22.33% |
| Month | 0.189344 | 0.075121 | 0.120456 | +120.11% |
| Quarter | 0.189344 | 0.0727486 | 0.0947425 | +93.95% |
Figures are in USDC Optimism per unit sent, from market data.
Daily ARB → USDC Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 0.165349 USDC Optimism | +8.88% |
| Sep 16, 2026 | 0.151861 USDC Optimism | +13.58% |
| Sep 15, 2026 | 0.133707 USDC Optimism | +0.31% |
| Sep 14, 2026 | 0.133299 USDC Optimism | −5.07% |
| Sep 13, 2026 | 0.140419 USDC Optimism | +0.61% |
| Sep 12, 2026 | 0.139563 USDC Optimism | −0.25% |
| Sep 11, 2026 | 0.139916 USDC Optimism | −6.39% |
The numbers on ARB and USDC
- Price
- $0.176538
- 24 hours
- +10.79%
- Week
- +19.1%
- Market cap
- $1.2 B
- 24-hour turnover
- $423.65 M
- Rank by cap
- #69
- In circulation
- 6.79 B ARB
- Record price
- $2.39
- Price
- $0.999608
- 24 hours
- 0%
- Week
- 0%
- Market cap
- $73.68 B
- 24-hour turnover
- $16.65 B
- Rank by cap
- #6
- In circulation
- 73.71 B USDC
- Record price
- $1.04
Source: CoinGecko, Sep 17, 2026 22:24.
Arbitrum against USD Coin
| Arbitrum (ARB) | USD Coin (USDC) | |
|---|---|---|
| Ticker | ARB | USDC |
| Type | token | token |
| Launched | 2023 | 2018 |
| Built by | Offchain Labs | Circle |
| Supply cap | 10 B ARB | no cap |
| In circulation | 6.79 B ARB | 73.71 B USDC |
| Market cap | $1.2 B | $73.68 B |
| Rank by cap | #69 | #6 |
| Network | — | Optimism |
| Fees are paid in | — | ETH |
Daily moves of ARB and USDC over 90 days line up at -0.01 — they travel apart.