Swap Simon's Cat (CAT) for Ethereum (ETH 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 Nov 1, 2026 13:29
- Orders from
- 103,039,670.27 CAT ≈ $167.95
- Payout network
- Optimism
- 24 hours
- −0.24%
You get
ETH Optimism
Start the order
ETH Optimism
The figure is indicative; the exact amount is locked in the order.
One CAT buys 0.000000000721 ETH Optimism right now; the other way round, 1 ETH Optimism is 1,387,830,498.9 CAT. Market over 24 hours: CAT against ETH Optimism minus 0.24%. The week added minus 2.66%.
The weekly corridor ran from 0.000000000714 to 0.000000000751 ETH Optimism, a spread of 5.19%. A single order takes 103,039,670.27 to 6,130,000,000,000 CAT. In dollars that is roughly $167.95.
The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap Simon's Cat sits 1132th ($12.26 M) and Ethereum 2th ($277.76 B). Daily moves of CAT and ETH over 90 days line up at 0.37 (they travel apart).
Who takes the CAT → ETH Optimism route
- Fuel for OptimismWithout Ethereum nothing moves in Optimism — every transfer and every contract call is paid in it.
- Different basketsDaily moves of CAT and ETH over 90 days line up at 0.37 (they travel apart) — the looser the link, the less a portfolio depends on one coin.
- A road both waysThe ETH Optimism → CAT direction is open too, so going back into CAT takes the same route.
CAT → ETH Optimism rate and amounts
1 CAT = 0.000000000721 ETH Optimism
1 ETH Optimism = 1,387,830,498.9 CAT
Send CAT — receive ETH Optimism
| CAT | ETH Optimism | ≈ USD |
|---|---|---|
| 200,000,000 | 0.14411 | $326.00 |
| 500,000,000 | 0.360275 | $815.00 |
| 2,000,000,000 | 1.4411 | $3,260.00 |
| 5,000,000,000 | 3.6027 | $8,150.00 |
| 20,000,000,000 | 14.411 | $32,600.00 |
| 50,000,000,000 | 36.0275 | $81,500.00 |
Need ETH Optimism — send this much CAT
| ETH Optimism | CAT | ≈ USD |
|---|---|---|
| 0.1 | 138,783,049.89 | $226.22 |
| 0.2 | 277,566,099.78 | $452.43 |
| 1 | 1,387,830,498.9 | $2,262.16 |
| 2 | 2,775,660,997.8 | $4,524.33 |
| 10 | 13,878,304,988.98 | $22,621.64 |
| 20 | 27,756,609,977.95 | $45,243.27 |
Payout network for ETH
The same ETH goes out in several networks. Rates and lower limits differ, and the fee is charged by the network itself.
| Network | Per CAT | From | Network fee | Speed |
|---|---|---|---|---|
| Ethereum | 0.000000000721 | 103,039,670.27 CAT | ≈ $0.002 | — |
| BNB Smart Chain (BEP20) | 0.000000000721 | 103,039,670.27 CAT | ≈ $0.0023 | fast |
| Arbitrum One | 0.000000000721 | 103,039,670.27 CAT | ≈ $0.00096 | fast |
| Optimism open now | 0.000000000721 | 103,039,670.27 CAT | ≈ < $0.0001 | fast |
| BASE | 0.000000000721 | — | — | — |
How the CAT → ETH Optimism order runs
- Work out the amount in the calculator: orders start at 103,039,670.27 CAT.
- Enter a ETH address in Optimism and a way to reach you.
- Send CAT in Simon's Cat for exactly the amount stated in the order.
- Once the network confirms your transfer, Ethereum leaves for your address. The order page tracks every step.
Check this before sending CAT
- The address network is Optimism. Sending through another network usually means losing the transfer.
- The transfer must not be smaller than 103,039,670.27 CAT.
- 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 CAT to ETH Optimism rate has been
high 0.000000000751 ETH Optimismlow 0.000000000714 ETH Optimism
Oct 25, 2026 13:32Nov 1, 2026 13:32
high 0.000000000848 ETH Optimismlow 0.000000000714 ETH Optimism
Oct 2, 2026 03:00Nov 1, 2026 03:00
high 0.000000001115 ETH Optimismlow 0.000000000714 ETH Optimism
Aug 3, 2026 03:00Nov 1, 2026 03:00
high 0.000000001382 ETH Optimismlow 0.000000000672 ETH Optimism
Nov 2, 2025 03:00Nov 1, 2026 03:00
- 24 hours
- −0.24%
- Week
- −2.66%
- Weekly high
- 0.000000000751 ETH Optimism
- Weekly low
- 0.000000000714 ETH Optimism
- Spread
- 5.19%
Market data from CoinGecko as of Nov 1, 2026 11:54; the exchange rate is calculated separately and differs. Where these numbers come from
How far CAT/ETH Optimism travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.000000000728 | 0.000000000716 | 0.000000000721 | −0.24% |
| Week | 0.000000000751 | 0.000000000714 | 0.000000000733 | −2.66% |
| Month | 0.000000000848 | 0.000000000714 | 0.000000000775 | −13.36% |
| Quarter | 0.000000001115 | 0.000000000714 | 0.000000000808 | −0.98% |
Figures are in ETH Optimism per unit sent, from market data.
Daily CAT → ETH Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Nov 1, 2026 | 0.000000000718 ETH Optimism | −1.04% |
| Oct 31, 2026 | 0.000000000725 ETH Optimism | +1.63% |
| Oct 30, 2026 | 0.000000000714 ETH Optimism | −4.16% |
| Oct 29, 2026 | 0.000000000745 ETH Optimism | +0.24% |
| Oct 28, 2026 | 0.000000000743 ETH Optimism | +0.52% |
| Oct 27, 2026 | 0.000000000739 ETH Optimism | +0.99% |
| Oct 26, 2026 | 0.000000000732 ETH Optimism | −0.08% |
Daily RubyCash rate: CAT → ETH Optimism
| Date | RubyCash rate | Market rate |
|---|---|---|
| Nov 1, 2026 | 0.000000000722 ETH Optimism | 0.000000000717 |
| Oct 31, 2026 | 0.000000000725 ETH Optimism | 0.000000000722 |
| Oct 30, 2026 | 0.000000000742 ETH Optimism | 0.000000000715 |
| Oct 29, 2026 | 0.00000000074 ETH Optimism | 0.000000000717 |
| Oct 28, 2026 | 0.000000000749 ETH Optimism | 0.000000000742 |
| Oct 27, 2026 | 0.000000000748 ETH Optimism | 0.000000000741 |
| Oct 26, 2026 | 0.000000000747 ETH Optimism | 0.000000000739 |
| Oct 25, 2026 | 0.000000000735 ETH Optimism | 0.000000000738 |
| Oct 24, 2026 | 0.000000000737 ETH Optimism | 0.000000000734 |
| Oct 22, 2026 | 0.000000000735 ETH Optimism | 0.000000000726 |
| Oct 21, 2026 | 0.000000000746 ETH Optimism | 0.000000000742 |
| Oct 20, 2026 | 0.000000000746 ETH Optimism | 0.000000000742 |
| Oct 19, 2026 | 0.000000000791 ETH Optimism | 0.000000000771 |
| Oct 18, 2026 | 0.000000000752 ETH Optimism | 0.000000000749 |
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 CAT and ETH
Simon's Cat CAT- Price
- $0.00000163
- 24 hours
- +1.28%
- Week
- −5.65%
- Market cap
- $12.26 M
- 24-hour turnover
- $511.72 K
- Rank by cap
- #1132
- In circulation
- 7.5 T CAT
- Record price
- $0.00006811
Ethereum ETH- Price
- $2,273.30
- 24 hours
- +1.52%
- Week
- −3%
- Market cap
- $277.76 B
- 24-hour turnover
- $4.43 B
- Rank by cap
- #2
- In circulation
- 122.18 M ETH
- Record price
- $4,946.05
Source: CoinGecko, Nov 1, 2026 11:54.
Simon's Cat against Ethereum
| Simon's Cat (CAT) | Ethereum (ETH) | |
|---|---|---|
| Ticker | CAT | ETH |
| In circulation | 7.5 T CAT | 122.18 M ETH |
| Market cap | $12.26 M | $277.76 B |
| Rank by cap | #1132 | #2 |
| Type | — | coin of its own network |
| Network | — | Optimism |
| Fees are paid in | — | ETH |
| Launched | — | 2015 |
| Built by | — | Vitalik Buterin |
| Consensus | — | Proof of Stake |
| Block | — | ~12 sec |
| Supply cap | — | no cap |
| Privacy | — | transfers are public |
Daily moves of CAT and ETH over 90 days line up at 0.37 — they travel apart.
Common questions: CAT → ETH Optimism
What rate does CAT to ETH Optimism run at?
As of Nov 1, 2026 13:29 it is 1 CAT = 0.000000000721 ETH Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.00000163802.
What amounts does CAT → ETH Optimism accept?
From 103,039,670.27 to 6,130,000,000,000 CAT per order. The lower limit is roughly $167.95.
Where does the 103,039,670.27 CAT floor come from?
Network fees and order handling eat a small transfer alive — below 103,039,670.27 CAT 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 CAT, and that one goes to the blockchain, not to us.
How long does CAT to ETH Optimism take?
The clock starts with confirmations: the order goes into work once Simon's Cat confirms your transfer. After that it comes down to how busy the network is.
Which network will ETH Optimism arrive in?
The payout leaves in Optimism. Make sure the receiving wallet works with that network.
Where is receiving ETH cheaper?
The cheapest is usually ETH BEP20, ETH Arbitrum, ETH 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 CAT to ETH Optimism rate do this month?
The month came in at minus 13.36%. Low 0.000000000714, high 0.000000000848, middle 0.000000000775 ETH Optimism per CAT.
Can I go back, ETH Optimism to CAT?
Yes, the reverse direction is open: 1 ETH Optimism = 1,394,814,938.95 CAT. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
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