Arbitrum (ARB) → Ethereum (ETH Optimism)

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 ARB → ETH Optimism 1 ARB = 0.0000755076 ETH Optimism 1 ETH Optimism = 13,243.7 ARB

Rate as of Sep 30, 2026 20:00

Orders from: 489.402 ARB ≈ $98.87
Payout network: Optimism
24 hours: −2.89%

You send

ARB

You get 0.377538

ETH Optimism

Create the order

Rate: 1 ARB = 0.0000755076 ETH Optimism
From: 489.402 ARB
Up to: 49,500,000 ARB

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

Current maths: 0.0000755076 ETH Optimism for every ARB, and 13,243.7 ARB per ETH Optimism in reverse. Over 24 hours ARB/ETH Optimism came in at minus 2.89%. Over the week, minus 9.31%.

The weekly range ran from 0.0000733654 to 0.0000862928 ETH Optimism, a spread of 17.62%. One order takes from 489.402 to 49,500,000 ARB. In dollars that is roughly $98.87.

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 Arbitrum at No. 68 ($1.37 B) and Ethereum at No. 2 ($327.21 B). Over 90 days the daily moves of ARB and ETH correlate at 0.64 (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 ARB	From	Network fee	Speed
Ethereum	0.0000755076	489.402 ARB	≈ $0.055	—
BNB Smart Chain (BEP20)	0.0000755076	489.402 ARB	≈ $0.0025	fast
Arbitrum One	0.0000755076	489.402 ARB	≈ $0.0014	fast
BASE	0.0000755076	489.402 ARB	—	—
Optimism open	0.0000755076	489.402 ARB	≈ $0.0001	fast

Rate and amounts for ARB → ETH Optimism

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

ARB	ETH Optimism	≈ USD
500	0.0377538	$101.01
2,000	0.151015	$404.06
5,000	0.377538	$1,010.14
20,000	1.5102	$4,040.56
50,000	3.7754	$10,101.40
200,000	15.1015	$40,405.60

ETH Optimism	ARB	≈ USD
0.05	662.1852	$133.78
0.2	2,648.74	$535.12
0.5	6,621.85	$1,337.80
2	26,487.41	$5,351.20
5	66,218.52	$13,377.99
20	264,874.06	$53,511.98

How the ARB → ETH Optimism exchange runs

Work out the amount in the calculator — orders start at 489.402 ARB.
Give a ETH address on Optimism and a contact for the order.
Send ARB on Arbitrum, 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 ARB for ETH Optimism

Check this before sending ARB

The address network is Optimism. Sending through another network almost always means losing the transfer.
The transfer must not be smaller than 489.402 ARB.
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 ARB to ETH Optimism rate has moved

WeekMonthQuarterYear

high 0.0000862928 ETH Optimismlow 0.0000733654 ETH Optimism

Sep 23, 2026 20:03Sep 30, 2026 20:03

high 0.0000853551 ETH Optimismlow 0.0000348501 ETH Optimism

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

high 0.0000853551 ETH Optimismlow 0.0000348501 ETH Optimism

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

high 0.000101675 ETH Optimismlow 0.0000348501 ETH Optimism

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

24 hours: −2.89%
Week: −9.31%
Weekly high: 0.0000862928 ETH Optimism
Weekly low: 0.0000733654 ETH Optimism
Spread: 17.62%

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 ARB/ETH Optimism spread by period

Period	High	Low	Middle	Period result
24 hours	0.0000775663	0.0000756163	0.0000763219	−2.89%
Week	0.0000862928	0.0000733654	0.0000804594	−9.31%
Month	0.0000853551	0.0000348501	0.0000672124	+116.56%
Quarter	0.0000853551	0.0000348501	0.0000513695	+59.56%

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

Daily ARB → ETH Optimism rate

Day	Close	Against the day before
Sep 30, 2026	0.0000754697 ETH Optimism	+0.43%
Sep 29, 2026	0.0000751445 ETH Optimism	−10.7%
Sep 28, 2026	0.0000841526 ETH Optimism	+2.13%
Sep 27, 2026	0.0000823969 ETH Optimism	−2.18%
Sep 26, 2026	0.0000842373 ETH Optimism	+4.59%
Sep 25, 2026	0.0000805368 ETH Optimism	+0.13%
Sep 24, 2026	0.0000804354 ETH Optimism	−5.76%

Market data: ARB and ETH

Arbitrum ARB

Price: $0.202028
24 hours: −4.14%
Week: −11.06%
Market cap: $1.37 B
24-hour turnover: $250.74 M
Rank by cap: #68
In circulation: 6.79 B ARB
All-time high: $2.39

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.

Arbitrum and Ethereum: how they differ

	Arbitrum (ARB)	Ethereum (ETH)
Ticker	ARB	ETH
Type	token	coin of its own network
Launched	2023	2015
Built by	Offchain Labs	Vitalik Buterin
Supply cap	10 B ARB	no cap
In circulation	6.79 B ARB	122.09 M ETH
Market cap	$1.37 B	$327.21 B
Rank by cap	#68	#2
Network	—	Optimism
Fees are paid in	—	ETH
Consensus	—	Proof of Stake
Block	—	~12 sec
Privacy	—	transfers are public

Daily moves of ARB and ETH over the quarter link at 0.64 (they travel alike).

Why people take the ARB → 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 ARB and ETH over 90 days link at 0.64 (they travel alike) — the weaker the link, the less a portfolio rests on one coin.
It works both waysThe ETH Optimism → ARB direction is open as well — going back into ARB takes the same route and the same automation.

Common questions: ARB → ETH Optimism

What rate does ARB to ETH Optimism run at?

As of Sep 30, 2026 20:00 it is 1 ARB = 0.0000755076 ETH Optimism. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.202334.

What amounts does ARB → ETH Optimism accept?

From 489.402 to 49,500,000 ARB per order. The floor is roughly $98.87.

Why can I not swap less than 489.402 ARB?

The network fee and the handling do not depend on the amount. On a transfer below 489.402 ARB 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 ARB, and the blockchain takes that one.

How long does swapping ARB for ETH Optimism take?

The clock starts with confirmations: as soon as Arbitrum 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 ARB to ETH Optimism rate do over the month?

Over the month, plus 116.56%: a low of 0.0000348501, a high of 0.0000853551, an average of 0.0000672124 ETH Optimism per 1 ARB.

Can I swap back, ETH Optimism for ARB?

Yes, the reverse is open too: 1 ETH Optimism = 13,243.44 ARB. The link to switch sits under the calculator.