Swap Ethereum (ETH Optimism) for USD Coin (USDC ERC20)
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 18, 2026 03:58
- Orders from
- 0.012 ETH Optimism ≈ $29.27
- Payout network
- Ethereum (ERC20)
- 24 hours
- +1.98%
The figure is indicative; the exact amount is locked in the order.
One ETH Optimism buys 2,452.33 USDC ERC20 right now; the other way round, 1 USDC ERC20 is 0.000407775 ETH Optimism. Market over 24 hours: ETH Optimism against USDC ERC20 plus 1.98%. The week added minus 0.25%.
The weekly corridor ran from 2,388.98 to 2,626.95 USDC ERC20, a spread of 9.96%. A single order takes 0.012 to 4,100 ETH Optimism. In dollars that is roughly $29.27.
The payout leaves in the Ethereum (ERC20) network, so the receiving address has to belong to that network. By market cap Ethereum sits 2th ($297.57 B) and USD Coin 6th ($73.86 B). Daily moves of ETH and USDC over 90 days line up at 0 (they travel apart).
Who takes the ETH Optimism → USDC ERC20 route
- Sitting out the swingsETH moved +28.56% over the past month. USDC tracks the dollar, so after the swap the value stops following ETH.
- A road both waysThe USDC ERC20 → ETH Optimism direction is open too, so going back into ETH takes the same route.
ETH Optimism → USDC ERC20 rate and amounts
Send ETH Optimism — receive USDC ERC20
| ETH Optimism | USDC ERC20 |
|---|---|
| 0.02 | 49.0466 |
| 0.1 | 245.233 |
| 0.5 | 1,226.17 |
| 1 | 2,452.33 |
| 5 | 12,261.65 |
| 20 | 49,046.61 |
Need USDC ERC20 — send this much ETH Optimism
| USDC ERC20 | ETH Optimism |
|---|---|
| 50 | 0.0203888 |
| 200 | 0.0815551 |
| 1,000 | 0.407775 |
| 5,000 | 2.0389 |
| 20,000 | 8.1555 |
| 100,000 | 40.7775 |
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 ETH Optimism | From | Network fee | Speed |
|---|---|---|---|---|
| Polygon | 2,452.33 | 0.012 ETH Optimism | ≈ $0.0018 | fast |
| Solana | 2,452.33 | 0.012 ETH Optimism | ≈ $0.0005 | fast |
| Ethereum (ERC20) open now | 2,452.33 | 0.012 ETH Optimism | ≈ $0.0089 | medium |
| Arbitrum One | 2,451.38 | — | ≈ $0.0032 | fast |
| BASE | 2,451.38 | — | — | — |
| BNB Smart Chain (BEP20) | 2,451.38 | — | ≈ $0.0024 | fast |
| Avalanche C-Chain | 2,451.38 | — | ≈ < $0.0001 | fast |
| NEAR | 2,451.38 | — | — | — |
| Optimism | 2,451.38 | — | ≈ $0.00016 | fast |
| XLM | 2,451.38 | — | — | — |
How the ETH Optimism → USDC ERC20 order runs
- Work out the amount in the calculator: orders start at 0.012 ETH Optimism.
- Enter a USDC address in Ethereum (ERC20) and a way to reach you.
- Send ETH 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 ETH Optimism
- The address network is Ethereum (ERC20). Sending through another network usually means losing the transfer.
- The transfer must not be smaller than 0.012 ETH Optimism.
- 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 ETH Optimism to USDC ERC20 rate has been
- 24 hours
- +1.98%
- Week
- −0.25%
- Weekly high
- 2,626.95 USDC ERC20
- Weekly low
- 2,388.98 USDC ERC20
- Spread
- 9.96%
Market data from CoinGecko as of Sep 18, 2026 01:24; the exchange rate is calculated separately and differs. Where these numbers come from
How far ETH Optimism/USDC ERC20 travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 2,469.23 | 2,404.58 | 2,441.06 | +1.98% |
| Week | 2,626.95 | 2,388.98 | 2,478.9 | −0.25% |
| Month | 2,525.49 | 1,912.91 | 2,421.76 | +28.57% |
| Quarter | 2,525.49 | 1,567.16 | 2,016.76 | +43.74% |
Figures are in USDC ERC20 per unit sent, from market data.
Daily ETH Optimism → USDC ERC20 rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 2,459.42 USDC ERC20 | +2.55% |
| Sep 16, 2026 | 2,398.2 USDC ERC20 | −4.65% |
| Sep 15, 2026 | 2,515.06 USDC ERC20 | +1.53% |
| Sep 14, 2026 | 2,477.08 USDC ERC20 | −1.92% |
| Sep 13, 2026 | 2,525.49 USDC ERC20 | +0.41% |
| Sep 12, 2026 | 2,515.23 USDC ERC20 | +3.18% |
| Sep 11, 2026 | 2,437.77 USDC ERC20 | −1.22% |
Daily RubyCash rate: ETH Optimism → USDC ERC20
| Date | RubyCash rate | Market rate |
|---|---|---|
| Sep 18, 2026 | 2,452.12 USDC ERC20 | 2,439.67 |
| Sep 17, 2026 | 2,452.31 USDC ERC20 | 2,439.67 |
| Sep 16, 2026 | 2,399.26 USDC ERC20 | 2,401.9 |
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 ETH and USDC
- Price
- $2,438.81
- 24 hours
- +1.97%
- Week
- −0.6%
- Market cap
- $297.57 B
- 24-hour turnover
- $12.13 B
- Rank by cap
- #2
- In circulation
- 122.06 M ETH
- Record price
- $4,946.05
- Price
- $0.999648
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $73.86 B
- 24-hour turnover
- $15.35 B
- Rank by cap
- #6
- In circulation
- 73.88 B USDC
- Record price
- $1.04
Source: CoinGecko, Sep 18, 2026 01:24.
Ethereum against USD Coin
| Ethereum (ETH) | USD Coin (USDC) | |
|---|---|---|
| Ticker | ETH | USDC |
| Type | coin of its own network | token |
| Network | Optimism | Ethereum (ERC20) |
| Fees are paid in | ETH | ETH |
| Launched | 2015 | 2018 |
| Built by | Vitalik Buterin | Circle |
| Consensus | Proof of Stake | — |
| Block | ~12 sec | — |
| Supply cap | no cap | no cap |
| Privacy | transfers are public | — |
| In circulation | 122.06 M ETH | 73.88 B USDC |
| Market cap | $297.57 B | $73.86 B |
| Rank by cap | #2 | #6 |
Daily moves of ETH and USDC over 90 days line up at 0 — they travel apart.