USD Coin (USDC BASE) → Ethereum (ETH Optimism)

Q: What rate does USDC BASE to ETH Optimism run at?

As of Sep 30, 2026 19:10 it is 1 USDC BASE = 0.000369856 ETH Optimism. The figure updates on its own, and the calculator always shows the current one. On the market that is around $1.00.

Q: What amounts does USDC BASE → ETH Optimism accept?

From 100.67 to 10,000,000 USDC BASE per order. The floor is roughly $100.65.

Q: Why can I not swap less than 100.67 USDC BASE?

The network fee and the handling do not depend on the amount. On a transfer below 100.67 USDC BASE 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 USDC BASE, and the blockchain takes that one.

Q: How long does swapping USDC BASE for ETH Optimism take?

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

Over the month, minus 10.19%: a low of 0.00036029, a high of 0.000418187, an average of 0.000392854 ETH Optimism per 1 USDC BASE.

Q: Can I swap back, ETH Optimism for USDC BASE?

Yes, the reverse is open too: 1 ETH Optimism = 2,703.7 USDC BASE. 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 USDC BASE → ETH Optimism 1 USDC BASE = 0.000369856 ETH Optimism 1 ETH Optimism = 2,703.76 USDC BASE

Rate as of Sep 30, 2026 19:10

Orders from: 100.67 USDC BASE ≈ $100.65
Payout network: Optimism
24 hours: +0.97%

You send

USDC BASE

You get 0.739712

ETH Optimism

Create the order

Rate: 1 USDC BASE = 0.000369856 ETH Optimism
From: 100.67 USDC BASE
Up to: 10,000,000 USDC BASE

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

Right now 1 USDC BASE gets you 0.000369856 ETH Optimism; the other way round, 1 ETH Optimism is 2,703.76 USDC BASE. Over 24 hours USDC BASE/ETH Optimism came in at plus 0.97%. Over the week, plus 0.95%.

The weekly range ran from 0.000365454 to 0.000377546 ETH Optimism, a spread of 3.31%. One order takes from 100.67 to 10,000,000 USDC BASE. In dollars that is roughly $100.65.

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 USD Coin at No. 6 ($74.32 B) and Ethereum at No. 2 ($330.5 B). Over 90 days the daily moves of USDC and ETH correlate at 0 (they travel apart).

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 USDC BASE	From	Network fee	Speed
Ethereum	0.000369856	100.67 USDC BASE	≈ $0.034	—
BNB Smart Chain (BEP20)	0.000369856	100.67 USDC BASE	≈ $0.0025	fast
Arbitrum One	0.000369856	100.67 USDC BASE	≈ $0.0013	fast
BASE	0.000369856	100.67 USDC BASE	—	—
Optimism open	0.000369856	100.67 USDC BASE	≈ < $0.0001	fast

Rate and amounts for USDC BASE → ETH Optimism

Send USDC BASE — receive ETH OptimismNeed ETH Optimism — send this much USDC BASE

USDC BASE	ETH Optimism
200	0.0739712
1,000	0.369856
2,000	0.739712
10,000	3.6986
20,000	7.3971
100,000	36.9856

ETH Optimism	USDC BASE
0.05	135.1878
0.2	540.7513
0.5	1,351.88
2	5,407.51
5	13,518.78
20	54,075.13

How the USDC BASE → ETH Optimism exchange runs

Work out the amount in the calculator — orders start at 100.67 USDC BASE.
Give a ETH address on Optimism and a contact for the order.
Send USDC BASE on BASE, 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 USDC BASE for ETH Optimism

Check this before sending USDC BASE

The address network is Optimism. Sending through another network almost always means losing the transfer.
The transfer must not be smaller than 100.67 USDC BASE.
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 USDC BASE to ETH Optimism rate has moved

WeekMonthQuarterYear

high 0.000377546 ETH Optimismlow 0.000365454 ETH Optimism

Sep 23, 2026 19:12Sep 30, 2026 19:12

high 0.000418187 ETH Optimismlow 0.00036029 ETH Optimism

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

high 0.000621532 ETH Optimismlow 0.00036029 ETH Optimism

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

high 0.000638098 ETH Optimismlow 0.000213125 ETH Optimism

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

24 hours: +0.97%
Week: +0.95%
Weekly high: 0.000377546 ETH Optimism
Weekly low: 0.000365454 ETH Optimism
Spread: 3.31%

Market data from CoinGecko as of Sep 30, 2026 18:57. The exchange rate is worked out separately and differs from the market one. How these numbers are counted

The USDC BASE/ETH Optimism spread by period

Period	High	Low	Middle	Period result
24 hours	0.000375634	0.000365454	0.000372237	+0.97%
Week	0.000377546	0.000365454	0.000372497	+0.95%
Month	0.000418187	0.00036029	0.000392854	−10.19%
Quarter	0.000621532	0.00036029	0.000474039	−40.21%

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

Daily USDC BASE → ETH Optimism rate

Day	Close	Against the day before
Sep 30, 2026	0.000371641 ETH Optimism	−0.09%
Sep 29, 2026	0.000371991 ETH Optimism	−0.01%
Sep 28, 2026	0.000372023 ETH Optimism	+0.29%
Sep 27, 2026	0.00037093 ETH Optimism	−0.18%
Sep 26, 2026	0.000371593 ETH Optimism	−0.13%
Sep 25, 2026	0.000372077 ETH Optimism	−0.11%
Sep 24, 2026	0.000372477 ETH Optimism	+2.54%

Market data: USDC and ETH

USD Coin USDC

Price: $0.99983
24 hours: −0.01%
Week: 0%
Market cap: $74.32 B
24-hour turnover: $17.65 B
Rank by cap: #6
In circulation: 74.33 B USDC
All-time high: $1.04

Ethereum ETH

Price: $2,706.70
24 hours: −0.97%
Week: +0.2%
Market cap: $330.5 B
24-hour turnover: $14.51 B
Rank by cap: #2
In circulation: 122.09 M ETH
All-time high: $4,946.05

Source: CoinGecko, Sep 30, 2026 18:57.

USD Coin and Ethereum: how they differ

	USD Coin (USDC)	Ethereum (ETH)
Ticker	USDC	ETH
Type	token	coin of its own network
Network	BASE	Optimism
Launched	2018	2015
Built by	Circle	Vitalik Buterin
Supply cap	no cap	no cap
In circulation	74.33 B USDC	122.09 M ETH
Market cap	$74.32 B	$330.5 B
Rank by cap	#6	#2
Fees are paid in	—	ETH
Consensus	—	Proof of Stake
Block	—	~12 sec
Privacy	—	transfers are public

Daily moves of USDC and ETH over the quarter link at 0 (they travel apart).

Why people take the USDC BASE → ETH Optimism route

Entering ETH from dollarsUSDC goes into Ethereum in one step, with no coin in between: over the last month ETH posted +11.34%.
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 USDC and ETH over 90 days link at 0 (they travel apart) — the weaker the link, the less a portfolio rests on one coin.

Common questions: USDC BASE → ETH Optimism

What rate does USDC BASE to ETH Optimism run at?

As of Sep 30, 2026 19:10 it is 1 USDC BASE = 0.000369856 ETH Optimism. The figure updates on its own, and the calculator always shows the current one. On the market that is around $1.00.

What amounts does USDC BASE → ETH Optimism accept?

From 100.67 to 10,000,000 USDC BASE per order. The floor is roughly $100.65.

Why can I not swap less than 100.67 USDC BASE?

The network fee and the handling do not depend on the amount. On a transfer below 100.67 USDC BASE 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 USDC BASE, and the blockchain takes that one.

How long does swapping USDC BASE for ETH Optimism take?

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