USDC: moving from Arbitrum One to OP Mainnet (Optimism)
The same USDC, only in another network: send USDC Arbitrum and collect USDC Optimism at your own address in OP Mainnet (Optimism). No bridge contracts, no signatures, no wrapped tokens.
Rate as of Sep 18, 2026 05:38
- Payout network
- Optimism
- 24 hours
- 0%
You get
USDC Optimism
Start the order
USDC Optimism
The figure is indicative; the exact amount is locked in the order.
One USDC Arbitrum buys 1.0001 USDC Optimism right now; the other way round, 1 USDC Optimism is 0.9999 USDC Arbitrum. Market over 24 hours: USDC Arbitrum against USDC Optimism a move of 0%. The week added a move of 0%.
The weekly corridor ran from 1 to 1 USDC Optimism, a spread of 0%.
The payout leaves in the Optimism network, so the receiving address has to belong to that network.
Who takes the USDC Arbitrum → USDC Optimism route
- Moving between networksUSDC in Arbitrum One (fee ≈ $0.0032) becomes Optimism (fee ≈ $0.00016) — the usual way to top up a wallet or an exchange that speaks one network only.
- A road both waysThe USDC Optimism → USDC Arbitrum direction is open too, so going back into USDC takes the same route.
USDC Arbitrum → USDC Optimism rate and amounts
1 USDC Arbitrum = 1.0001 USDC Optimism
1 USDC Optimism = 0.9999 USDC Arbitrum
Send USDC Arbitrum — receive USDC Optimism
| USDC Arbitrum | USDC Optimism |
|---|---|
| 20 | 20.002 |
| 100 | 100.01 |
| 500 | 500.05 |
| 5,000 | 5,000.5 |
| 20,000 | 20,002 |
| 100,000 | 100,010 |
Need USDC Optimism — send this much USDC Arbitrum
| USDC Optimism | USDC Arbitrum |
|---|---|
| 20 | 19.998 |
| 100 | 99.99 |
| 500 | 499.95 |
| 5,000 | 4,999.5 |
| 20,000 | 19,998 |
| 100,000 | 99,990 |
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 USDC Arbitrum | From | Network fee | Speed |
|---|---|---|---|---|
| Ethereum (ERC20) | 1.0001 | 200 USDC Arbitrum | ≈ $0.0099 | medium |
| Solana | 1.0001 | 200 USDC Arbitrum | ≈ $0.00051 | fast |
| Polygon | 1.0001 | 200 USDC Arbitrum | ≈ $0.0018 | fast |
| BASE | 1.0001 | — | — | — |
| BNB Smart Chain (BEP20) | 1.0001 | — | ≈ $0.0024 | fast |
| Avalanche C-Chain | 1.0001 | — | ≈ < $0.0001 | fast |
| NEAR | 1.0001 | — | — | — |
| Optimism open now | 1.0001 | — | ≈ $0.00016 | fast |
| XLM | 1.0001 | — | — | — |
How the USDC Arbitrum → 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 USDC Arbitrum in Arbitrum One for exactly the amount stated in the order.
- Once the network confirms your transfer, USD Coin Optimism leaves for your address. The order page tracks every step.
Check this before sending USDC Arbitrum
- 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.
Arbitrum One against OP Mainnet (Optimism)
| Arbitrum One | OP Mainnet (Optimism) | |
|---|---|---|
| Network type | L2, optimistic rollup | L2, optimistic rollup |
| Fees are paid in | ETH | ETH |
| Fee level | ≈ $0.0032 | ≈ $0.00016 |
| Speed | fast | fast |
| Block | ~0.25 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) | ≈ 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 OP Mainnet (Optimism) | Depends: in some networks it is the bridged version of the token |
| 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 OP Mainnet (Optimism) | Not needed to receive | Often needed, or the funds cannot be claimed or moved on |
| Timing | After confirmations in Arbitrum One; 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 Arbitrum One → OP Mainnet (Optimism): all directions The OP Mainnet (Optimism) network
Where the USDC Arbitrum to USDC Optimism rate has been
high 1 USDC Optimismlow 1 USDC Optimism
Sep 11, 2026 05:43Sep 18, 2026 05:43
high 1 USDC Optimismlow 1 USDC Optimism
Aug 19, 2026 03:00Sep 18, 2026 03:00
high 1 USDC Optimismlow 1 USDC Optimism
Jun 20, 2026 03:00Sep 18, 2026 03:00
high 1 USDC Optimismlow 1 USDC Optimism
Sep 19, 2025 03:00Sep 18, 2026 03:00
- 24 hours
- 0%
- Week
- 0%
- Weekly high
- 1 USDC Optimism
- Weekly low
- 1 USDC Optimism
- Spread
- 0%
Market data from CoinGecko as of Sep 18, 2026 05:24; the exchange rate is calculated separately and differs. Where these numbers come from
How far USDC Arbitrum/USDC Optimism travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 1 | 1 | 1 | 0% |
| Week | 1 | 1 | 1 | 0% |
| Month | 1 | 1 | 1 | 0% |
| Quarter | 1 | 1 | 1 | 0% |
Figures are in USDC Optimism per unit sent, from market data.
Daily USDC Arbitrum → USDC Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 18, 2026 | 1 USDC Optimism | 0% |
| Sep 17, 2026 | 1 USDC Optimism | 0% |
| Sep 16, 2026 | 1 USDC Optimism | 0% |
| Sep 15, 2026 | 1 USDC Optimism | 0% |
| Sep 14, 2026 | 1 USDC Optimism | 0% |
| Sep 13, 2026 | 1 USDC Optimism | 0% |
| Sep 12, 2026 | 1 USDC Optimism | 0% |
Daily RubyCash rate: USDC Arbitrum → USDC Optimism
| Date | RubyCash rate | Market rate |
|---|---|---|
| Sep 18, 2026 | 1.0001 USDC Optimism | 1 |
| Sep 17, 2026 | 1.0001 USDC Optimism | 1 |
| Sep 16, 2026 | 1.0001 USDC Optimism | 1 |
Our own rate is written down every hour; the table keeps the last entry of each day. The market column is the ratio of the same two coins on CoinGecko at that moment. Where these numbers come from
The numbers on USDC
USD Coin USDC- Price
- $0.999567
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $73.87 B
- 24-hour turnover
- $15.16 B
- Rank by cap
- #6
- In circulation
- 73.9 B USDC
- Record price
- $1.04
Source: CoinGecko, Sep 18, 2026 05:24.
Common questions: USDC Arbitrum → USDC Optimism
What rate does USDC Arbitrum to USDC Optimism run at?
As of Sep 18, 2026 05:38 it is 1 USDC Arbitrum = 1.0001 USDC Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.999667.
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 Arbitrum, and that one goes to the blockchain, not to us.
How long does USDC Arbitrum to USDC Optimism take?
The clock starts with confirmations: the order goes into work once Arbitrum One confirms your transfer. After that it comes down to how busy the network is. A block in Arbitrum One closes in about 0.25 sec.
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 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 USDC Arbitrum to USDC Optimism rate do this month?
The month came in at a move of 0%. Low 1, high 1, middle 1 USDC Optimism per USDC Arbitrum.
Can I go back, USDC Optimism to USDC Arbitrum?
Yes, the reverse direction is open: 1 USDC Optimism = 1.0001 USDC Arbitrum. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
Send USDC Arbitrum, receive something else
USDC Arbitrum → USDS1.0006
USDC Arbitrum → USDT Arbitrum1.001- USDC Arbitrum → USDT BEP201.001
- USDC Arbitrum → USDT AVAX C1.001
- USDC Arbitrum → USDT ERC201.001
- USDC Arbitrum → USDT NEAR1.001
- USDC Arbitrum → USDT OMNI1.001
- USDC Arbitrum → USDT Optimism1.001
Receive USDC Optimism, send something else
- USDC BASE → USDC Optimism1.0001
- USDC BEP20 → USDC Optimism1.0001
- USDC AVAX C → USDC Optimism1.0001
- USDC ERC20 → USDC Optimism1.0001
- USDC NEAR → USDC Optimism1.0001
- USDC Polygon → USDC Optimism1.0001
- USDC SOL → USDC Optimism1.0001
- USDC XLM → USDC Optimism1.0001
USDC Arbitrum USDC Optimism All directions All currencies
Bridge Arbitrum One → OP Mainnet (Optimism): all directions All bridges