Simon's Cat (CAT) → Ethereum (ETH Optimism)

Q: What rate does CAT to ETH Optimism run at?

As of Sep 30, 2026 15:10 it is 1 CAT = 0.000000000849 ETH Optimism. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.00000228362.

Q: What amounts does CAT → ETH Optimism accept?

From 45,367,282.56 to 4,390,000,000,000 CAT per order. The floor is roughly $103.44.

Q: Why can I not swap less than 45,367,282.56 CAT?

The network fee and the handling do not depend on the amount. On a transfer below 45,367,282.56 CAT they eat a noticeable share of it, and the swap stops making sense for either side.

Q: Is anything charged on top of the rate?

No. The payout is already worked out at the rate in the calculator. Separately you pay only the network fee for sending CAT, and the blockchain takes that one.

Q: How long does swapping CAT for ETH Optimism take?

The clock starts with confirmations: as soon as Simon's Cat confirms your transfer, the order goes out for payout with no operator involved. After that the timing is set by how busy the network is — which is the difference between quick and instant.

Q: Which network will ETH Optimism arrive in?

The payout goes out on Optimism. Check that the receiving wallet supports that network.

Q: Which network is cheaper for receiving ETH?

Usually ETH BEP20, ETH Arbitrum, ETH Optimism works out cheaper. Still, the network is picked by what the recipient accepts, not by the fee.

Q: What happens if the rate moves while I am paying?

Nothing: the rate is locked in the order and holds for as long as the order is alive. It is recalculated only if the payment arrives late or for a different amount — so send the exact sum, and send it promptly.

Q: What did the CAT to ETH Optimism rate do over the month?

Over the month, plus 4.69%: a low of 0.000000000734, a high of 0.000000001021, an average of 0.000000000819 ETH Optimism per 1 CAT.

Q: Can I swap back, ETH Optimism for CAT?

Yes, the reverse is open too: 1 ETH Optimism = 1,177,598,727.18 CAT. The link to switch sits under the calculator.

The order runs on autopilot: the rate is locked when you create it, and the payout leaves as soon as the network confirms your transfer. No manual approval, no working hours.

Rate and amounts for CAT → ETH Optimism 1 CAT = 0.000000000849 ETH Optimism 1 ETH Optimism = 1,177,622,279.39 CAT

Rate as of Sep 30, 2026 15:10

Orders from: 45,367,282.56 CAT ≈ $103.44
Payout network: Optimism
24 hours: +1.22%

You send

CAT

You get 0.424584

ETH Optimism

Create the order

Rate: 1 CAT = 0.000000000849 ETH Optimism
From: 45,367,282.56 CAT
Up to: 4,390,000,000,000 CAT

Preliminary figure: the final amount is locked in the order.

Right now 1 CAT gets you 0.000000000849 ETH Optimism; the other way round, 1 ETH Optimism is 1,177,622,279.39 CAT. Over 24 hours CAT/ETH Optimism came in at plus 1.22%. Over the week, plus 1.97%.

The weekly range ran from 0.000000000781 to 0.0000000009 ETH Optimism, a spread of 15.21%. One order takes from 45,367,282.56 to 4,390,000,000,000 CAT. In dollars that is roughly $103.44.

The robot sends the payout in the Optimism network, so the address has to belong to that network — a transfer to another one will not arrive. Market capitalisation puts Simon's Cat at No. 968 ($17.09 M) and Ethereum at No. 2 ($328.36 B). Over 90 days the daily moves of CAT and ETH correlate at 0.41 (they travel alike).

Which network ETH arrives in

The same ETH goes out in several networks. Each has its own rate and its own floor, and the fee is charged by the network itself.

Network	Per 1 CAT	From	Network fee	Speed
Ethereum	0.000000000849	45,367,282.56 CAT	≈ $0.013	—
BNB Smart Chain (BEP20)	0.000000000849	45,367,282.56 CAT	≈ $0.0025	fast
Arbitrum One	0.000000000849	45,367,282.56 CAT	≈ $0.0012	fast
BASE	0.000000000849	45,367,282.56 CAT	—	—
Optimism open	0.000000000849	45,367,282.56 CAT	≈ < $0.0001	fast

Rate and amounts for CAT → ETH Optimism

Send CAT — receive ETH OptimismNeed ETH Optimism — send this much CAT

CAT	ETH Optimism	≈ USD
50,000,000	0.0424584	$114.00
200,000,000	0.169834	$456.00
500,000,000	0.424584	$1,140.00
2,000,000,000	1.6983	$4,560.00
5,000,000,000	4.2458	$11,400.00
20,000,000,000	16.9834	$45,600.00

ETH Optimism	CAT	≈ USD
0.05	58,881,113.97	$134.25
0.2	235,524,455.88	$537.00
0.5	588,811,139.69	$1,342.49
2	2,355,244,558.77	$5,369.96
5	5,888,111,396.94	$13,424.89
20	23,552,445,587.75	$53,699.58

How the CAT → ETH Optimism exchange runs

Work out the amount in the calculator — orders start at 45,367,282.56 CAT.
Give a ETH address on Optimism and a contact for the order.
Send CAT on Simon's Cat, exactly the amount the order shows.
Nothing else is needed from you: as soon as the network confirms the transfer, the robot sends Ethereum to your address. The order page shows the status.

Swap CAT for ETH Optimism

Check this before sending CAT

The address network is Optimism. Sending through another network almost always means losing the transfer.
The transfer must not be smaller than 45,367,282.56 CAT.
Copy the address in full, then check its first and last characters once it is pasted.
Send exactly the amount stated in the order: the automation matches your payment against it, and any difference sends the order back for recalculation.

How the CAT to ETH Optimism rate has moved

WeekMonthQuarterYear

high 0.0000000009 ETH Optimismlow 0.000000000781 ETH Optimism

Sep 23, 2026 15:14Sep 30, 2026 15:14

high 0.000000001021 ETH Optimismlow 0.000000000734 ETH Optimism

Aug 30, 2026 05:00Sep 29, 2026 05:00

high 0.000000001115 ETH Optimismlow 0.000000000672 ETH Optimism

Jul 1, 2026 05:00Sep 29, 2026 05:00

high 0.000000001939 ETH Optimismlow 0.000000000672 ETH Optimism

Oct 1, 2025 05:00Sep 29, 2026 05:00

24 hours: +1.22%
Week: +1.97%
Weekly high: 0.0000000009 ETH Optimism
Weekly low: 0.000000000781 ETH Optimism
Spread: 15.21%

Market data from CoinGecko as of Sep 30, 2026 14:57. The exchange rate is worked out separately and differs from the market one. How these numbers are counted

The CAT/ETH Optimism spread by period

Period	High	Low	Middle	Period result
24 hours	0.000000000849	0.000000000821	0.000000000835	+1.22%
Week	0.0000000009	0.000000000781	0.000000000846	+1.97%
Month	0.000000001021	0.000000000734	0.000000000819	+4.69%
Quarter	0.000000001115	0.000000000672	0.000000000789	+2.69%

Figures are in ETH Optimism per unit of the currency you send, taken from market data.

Daily CAT → ETH Optimism rate

Day	Close	Against the day before
Sep 29, 2026	0.000000000825 ETH Optimism	−7.63%
Sep 28, 2026	0.000000000893 ETH Optimism	+1.19%
Sep 27, 2026	0.000000000882 ETH Optimism	+4.35%
Sep 26, 2026	0.000000000845 ETH Optimism	−0.77%
Sep 25, 2026	0.000000000852 ETH Optimism	+8.39%
Sep 24, 2026	0.000000000786 ETH Optimism	−7.43%
Sep 23, 2026	0.000000000849 ETH Optimism	+5.52%

Market data: CAT and ETH

Simon's Cat CAT

Price: $0.00000228
24 hours: +0.12%
Week: −1.32%
Market cap: $17.09 M
24-hour turnover: $766.53 K
Rank by cap: #968
In circulation: 7.5 T CAT
All-time high: $0.00006811

Ethereum ETH

Price: $2,689.24
24 hours: −1.09%
Week: −2.63%
Market cap: $328.36 B
24-hour turnover: $13.36 B
Rank by cap: #2
In circulation: 122.09 M ETH
All-time high: $4,946.05

Source: CoinGecko, Sep 30, 2026 14:57.

Simon's Cat and Ethereum: how they differ

	Simon's Cat (CAT)	Ethereum (ETH)
Ticker	CAT	ETH
In circulation	7.5 T CAT	122.09 M ETH
Market cap	$17.09 M	$328.36 B
Rank by cap	#968	#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 the quarter link at 0.41 (they travel alike).

Why people take the CAT → ETH Optimism route

Fuel for OptimismWithout Ethereum you cannot pay for a transfer or a contract call in Optimism — the coin is needed for anything that happens in that ecosystem.
Different basketsDaily moves of CAT and ETH over 90 days link at 0.41 (they travel alike) — the weaker the link, the less a portfolio rests on one coin.
It works both waysThe ETH Optimism → CAT direction is open as well — going back into CAT takes the same route and the same automation.

Common questions: CAT → ETH Optimism

What rate does CAT to ETH Optimism run at?

As of Sep 30, 2026 15:10 it is 1 CAT = 0.000000000849 ETH Optimism. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.00000228362.

What amounts does CAT → ETH Optimism accept?

From 45,367,282.56 to 4,390,000,000,000 CAT per order. The floor is roughly $103.44.

Why can I not swap less than 45,367,282.56 CAT?

The network fee and the handling do not depend on the amount. On a transfer below 45,367,282.56 CAT they eat a noticeable share of it, and the swap stops making sense for either side.

Is anything charged on top of the rate?

No. The payout is already worked out at the rate in the calculator. Separately you pay only the network fee for sending CAT, and the blockchain takes that one.

How long does swapping CAT for ETH Optimism take?

The clock starts with confirmations: as soon as Simon's Cat confirms your transfer, the order goes out for payout with no operator involved. After that the timing is set by how busy the network is — which is the difference between quick and instant.

Which network will ETH Optimism arrive in?

The payout goes out on Optimism. Check that the receiving wallet supports that network.

Which network is cheaper for receiving ETH?

Usually ETH BEP20, ETH Arbitrum, ETH Optimism works out cheaper. Still, the network is picked by what the recipient accepts, not by the fee.

What happens if the rate moves while I am paying?

Nothing: the rate is locked in the order and holds for as long as the order is alive. It is recalculated only 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 over the month?