Optimism (OP Optimism) → Ethereum (ETH Arbitrum)

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 OP Optimism → ETH Arbitrum 1 OP Optimism = 0.0000487047 ETH Arbitrum 1 ETH Arbitrum = 20,531.91 OP Optimism

Rate as of Sep 30, 2026 20:10

Orders from: 772.0092 OP Optimism ≈ $100.73
Payout network: Arbitrum One
24 hours: −2.34%

You send

OP Optimism

You get 0.487047

ETH Arbitrum

Create the order

Rate: 1 OP Optimism = 0.0000487047 ETH Arbitrum
From: 772.0092 OP Optimism
Up to: 76,600,000 OP Optimism

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

Right now 1 OP Optimism gets you 0.0000487047 ETH Arbitrum; the other way round, 1 ETH Arbitrum is 20,531.91 OP Optimism. Over 24 hours OP Optimism/ETH Arbitrum came in at minus 2.34%. Over the week, plus 0.61%.

The weekly range ran from 0.0000457907 to 0.0000558102 ETH Arbitrum, a spread of 21.88%. One order takes from 772.0092 to 76,600,000 OP Optimism. In dollars that is roughly $100.73.

The robot sends the payout in the Arbitrum One network, so the address has to belong to that network — a transfer to another one will not arrive. Market capitalisation puts Optimism at No. 151 ($300.07 M) and Ethereum at No. 2 ($327.21 B). Over 90 days the daily moves of OP and ETH correlate at 0.43 (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 OP Optimism	From	Network fee	Speed
Arbitrum One open	0.0000487047	772.0092 OP Optimism	≈ $0.0013	fast
BASE	0.0000487047	772.0092 OP Optimism	—	—
Optimism	0.0000487047	772.0092 OP Optimism	≈ $0.00012	fast
Ethereum	0.0000487047	772.0092 OP Optimism	≈ $0.062	—
BNB Smart Chain (BEP20)	0.0000487047	772.0092 OP Optimism	≈ $0.0025	fast

Rate and amounts for OP Optimism → ETH Arbitrum

Send OP Optimism — receive ETH ArbitrumNeed ETH Arbitrum — send this much OP Optimism

OP Optimism	ETH Arbitrum	≈ USD
1,000	0.0487047	$130.48
5,000	0.243523	$652.39
10,000	0.487047	$1,304.78
50,000	2.4352	$6,523.90
100,000	4.8705	$13,047.80
500,000	24.3523	$65,239.00

ETH Arbitrum	OP Optimism	≈ USD
0.05	1,026.6	$133.95
0.2	4,106.38	$535.79
0.5	10,265.95	$1,339.48
2	41,063.81	$5,357.92
5	102,659.53	$13,394.81
20	410,638.1	$53,579.24

How the OP Optimism → ETH Arbitrum exchange runs

Work out the amount in the calculator — orders start at 772.0092 OP Optimism.
Give a ETH address on Arbitrum One and a contact for the order.
Send OP Optimism on Optimism, 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 OP Optimism for ETH Arbitrum

Check this before sending OP Optimism

The address network is Arbitrum One. Sending through another network almost always means losing the transfer.
The transfer must not be smaller than 772.0092 OP Optimism.
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 OP Optimism to ETH Arbitrum rate has moved

WeekMonthQuarterYear

high 0.0000558102 ETH Arbitrumlow 0.0000457907 ETH Arbitrum

Sep 23, 2026 20:11Sep 30, 2026 20:11

high 0.0000555077 ETH Arbitrumlow 0.0000357733 ETH Arbitrum

Aug 31, 2026 05:00Sep 30, 2026 05:00

high 0.0000608863 ETH Arbitrumlow 0.0000357733 ETH Arbitrum

Jul 2, 2026 05:00Sep 30, 2026 05:00

high 0.000167541 ETH Arbitrumlow 0.0000357733 ETH Arbitrum

Oct 1, 2025 05:00Sep 30, 2026 05:00

24 hours: −2.34%
Week: +0.61%
Weekly high: 0.0000558102 ETH Arbitrum
Weekly low: 0.0000457907 ETH Arbitrum
Spread: 21.88%

Market data from CoinGecko as of Sep 30, 2026 19:57. The exchange rate is worked out separately and differs from the market one. How these numbers are counted

The OP Optimism/ETH Arbitrum spread by period

Period	High	Low	Middle	Period result
24 hours	0.0000497444	0.0000480631	0.00004882	−2.34%
Week	0.0000558102	0.0000457907	0.0000506774	+0.61%
Month	0.0000555077	0.0000357733	0.0000436779	+37.13%
Quarter	0.0000608863	0.0000357733	0.0000470527	−16.63%

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

Daily OP Optimism → ETH Arbitrum rate

Day	Close	Against the day before
Sep 30, 2026	0.0000490552 ETH Arbitrum	−1.82%
Sep 29, 2026	0.0000499631 ETH Arbitrum	−9.99%
Sep 28, 2026	0.0000555077 ETH Arbitrum	+4.03%
Sep 27, 2026	0.0000533586 ETH Arbitrum	−1.95%
Sep 26, 2026	0.0000544186 ETH Arbitrum	+11.29%
Sep 25, 2026	0.0000488961 ETH Arbitrum	+6.78%
Sep 24, 2026	0.0000457907 ETH Arbitrum	−6.68%

Market data: OP and ETH

Optimism OP

Price: $0.130478
24 hours: −3.6%
Week: −1.66%
Market cap: $300.07 M
24-hour turnover: $107.53 M
Rank by cap: #151
In circulation: 2.3 B OP
All-time high: $4.84

Ethereum ETH

Price: $2,679.65
24 hours: −1.29%
Week: −0.57%
Market cap: $327.21 B
24-hour turnover: $14.98 B
Rank by cap: #2
In circulation: 122.09 M ETH
All-time high: $4,946.05

Source: CoinGecko, Sep 30, 2026 19:57.

Optimism and Ethereum: how they differ

	Optimism (OP)	Ethereum (ETH)
Ticker	OP	ETH
Network	Optimism	Arbitrum One
Fees are paid in	ETH	ETH
In circulation	2.3 B OP	122.09 M ETH
Market cap	$300.07 M	$327.21 B
Rank by cap	#151	#2
Type	—	coin of its own network
Launched	—	2015
Built by	—	Vitalik Buterin
Consensus	—	Proof of Stake
Block	—	~12 sec
Supply cap	—	no cap
Privacy	—	transfers are public

Daily moves of OP and ETH over the quarter link at 0.43 (they travel alike).

Why people take the OP Optimism → ETH Arbitrum route

Fuel for Arbitrum OneWithout Ethereum you cannot pay for a transfer or a contract call in Arbitrum One — the coin is needed for anything that happens in that ecosystem.
Different basketsDaily moves of OP and ETH over 90 days link at 0.43 (they travel alike) — the weaker the link, the less a portfolio rests on one coin.
It works both waysThe ETH Arbitrum → OP Optimism direction is open as well — going back into OP takes the same route and the same automation.

Common questions: OP Optimism → ETH Arbitrum

What rate does OP Optimism to ETH Arbitrum run at?

As of Sep 30, 2026 20:10 it is 1 OP Optimism = 0.0000487047 ETH Arbitrum. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.130512.

What amounts does OP Optimism → ETH Arbitrum accept?

From 772.0092 to 76,600,000 OP Optimism per order. The floor is roughly $100.73.

Why can I not swap less than 772.0092 OP Optimism?

The network fee and the handling do not depend on the amount. On a transfer below 772.0092 OP Optimism 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 OP Optimism, and the blockchain takes that one.

How long does swapping OP Optimism for ETH Arbitrum take?

The clock starts with confirmations: as soon as Optimism 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 Arbitrum arrive in?

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

Which network is cheaper for receiving ETH?

Usually ETH Arbitrum, ETH Optimism, ETH BEP20 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 OP Optimism to ETH Arbitrum rate do over the month?

Over the month, plus 37.13%: a low of 0.0000357733, a high of 0.0000555077, an average of 0.0000436779 ETH Arbitrum per 1 OP Optimism.

Can I swap back, ETH Arbitrum for OP Optimism?

Yes, the reverse is open too: 1 ETH Arbitrum = 20,531.49 OP Optimism. The link to switch sits under the calculator.