USDT SOL (Solana) → USDC Optimism (OP Mainnet (Optimism))

The stablecoin leaves for another network: you send USDT SOL in Solana and take USDC Optimism in OP Mainnet (Optimism). All of it is one order.

Rate and amounts for USDT SOL → USDC Optimism 1 USDT SOL = 0.9996 USDC Optimism 1 USDC Optimism = 1.0004 USDT SOL

Rate as of Sep 30, 2026 21:05

Orders from: 100.67 USDT SOL ≈ $100.62
Payout network: Optimism
24 hours: −0.01%

You send

USDT SOL

You get 1,999.2

USDC Optimism

Create the order

Rate: 1 USDT SOL = 0.9996 USDC Optimism
From: 100.67 USDT SOL
Up to: 10,000,000 USDT SOL

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

Right now 1 USDT SOL gets you 0.9996 USDC Optimism; the other way round, 1 USDC Optimism is 1.0004 USDT SOL. Over 24 hours USDT SOL/USDC Optimism came in at minus 0.01%. Over the week, minus 0.01%.

The weekly range ran from 0.999787 to 1 USDC Optimism, a spread of 0.02%. One order takes from 100.67 to 10,000,000 USDT SOL. In dollars that is roughly $100.62.

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 Tether at No. 3 ($183.78 B) and USD Coin at No. 6 ($74.25 B). Over 90 days the daily moves of USDT and USDC correlate at 0.17 (they travel apart).

Which network USDC arrives in

The same USDC 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 USDT SOL	From	Network fee	Speed
Ethereum (ERC20)	0.9996	100.67 USDT SOL	≈ $0.095	medium
Solana	0.9996	100.67 USDT SOL	≈ $0.0006	fast
Arbitrum One	0.9996	100.67 USDT SOL	≈ $0.0037	fast
BASE	0.9996	100.67 USDT SOL	—	—
BNB Smart Chain (BEP20)	0.9996	100.67 USDT SOL	≈ $0.0025	fast
Avalanche C-Chain	0.9996	100.67 USDT SOL	≈ $0.0036	fast
NEAR	0.9996	100.67 USDT SOL	—	—
Optimism open	0.9996	100.67 USDT SOL	≈ $0.0002	fast
Polygon	0.9996	100.67 USDT SOL	≈ $0.002	fast
XLM	0.9996	100.67 USDT SOL	—	—

Network charges for USDC

Rate and amounts for USDT SOL → USDC Optimism

Send USDT SOL — receive USDC OptimismNeed USDC Optimism — send this much USDT SOL

USDT SOL	USDC Optimism
200	199.92
1,000	999.6002
2,000	1,999.2
10,000	9,996
20,000	19,992
100,000	99,960.02

USDC Optimism	USDT SOL
200	200.08
1,000	1,000.4
2,000	2,000.8
10,000	10,004
20,000	20,008
100,000	100,040

How the USDT SOL → USDC Optimism exchange runs

Work out the amount in the calculator — orders start at 100.67 USDT SOL.
Give a USDC address on Optimism and a contact for the order.
Send USDT SOL on Solana, exactly the amount the order shows.
Nothing else is needed from you: as soon as the network confirms the transfer, the robot sends USD Coin to your address. The order page shows the status.

Swap USDT SOL for USDC Optimism

Check this before sending USDT SOL

The address network is Optimism. Sending through another network almost always means losing the transfer.
The transfer must not be smaller than 100.67 USDT SOL.
Copy the address in full, then check its first and last characters once it is pasted.
Ethereum, Arbitrum, Optimism, BNB Smart Chain and Polygon addresses look the same (0x…) — make sure the wallet is switched to OP Mainnet (Optimism).
Keep a reserve of ETH at the same address — without it USDC cannot be sent on later.
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 USDT SOL to USDC Optimism rate has moved

WeekMonthQuarterYear

high 1 USDC Optimismlow 0.999787 USDC Optimism

Sep 23, 2026 21:08Sep 30, 2026 21:08

high 1.0002 USDC Optimismlow 0.999645 USDC Optimism

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

high 1.0002 USDC Optimismlow 0.999423 USDC Optimism

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

high 1.0017 USDC Optimismlow 0.996801 USDC Optimism

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

24 hours: −0.01%
Week: −0.01%
Weekly high: 1 USDC Optimism
Weekly low: 0.999787 USDC Optimism
Spread: 0.02%

Market data from CoinGecko as of Sep 30, 2026 20:57. The exchange rate is worked out separately and differs from the market one. How these numbers are counted

The USDT SOL/USDC Optimism spread by period

Period	High	Low	Middle	Period result
24 hours	0.999882	0.999788	0.999824	−0.01%
Week	1	0.999787	0.9999	−0.01%
Month	1.0002	0.999645	0.999909	−0.02%
Quarter	1.0002	0.999423	0.999758	+0.03%

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

Daily USDT SOL → USDC Optimism rate

Day	Close	Against the day before
Sep 30, 2026	0.999812 USDC Optimism	0%
Sep 29, 2026	0.999795 USDC Optimism	−0.01%
Sep 28, 2026	0.999929 USDC Optimism	0%
Sep 27, 2026	0.999954 USDC Optimism	0%
Sep 26, 2026	0.999926 USDC Optimism	0%
Sep 25, 2026	0.999876 USDC Optimism	−0.01%
Sep 24, 2026	0.999972 USDC Optimism	0%

Market data: USDT and USDC

Tether USDT

Price: $0.999488
24 hours: −0.03%
Week: −0.01%
Market cap: $183.78 B
24-hour turnover: $63.57 B
Rank by cap: #3
In circulation: 183.87 B USDT
All-time high: $1.32

USD Coin USDC

Price: $0.999759
24 hours: −0.02%
Week: 0%
Market cap: $74.25 B
24-hour turnover: $17.91 B
Rank by cap: #6
In circulation: 74.27 B USDC
All-time high: $1.04

Source: CoinGecko, Sep 30, 2026 20:57.

Tether and USD Coin: how they differ

	Tether (USDT)	USD Coin (USDC)
Ticker	USDT	USDC
Type	token	token
Network	Solana	Optimism
Fees are paid in	SOL	ETH
Launched	2014	2018
Built by	Tether Limited	Circle
Supply cap	no cap	no cap
In circulation	183.87 B USDT	74.27 B USDC
Market cap	$183.78 B	$74.25 B
Rank by cap	#3	#6

Daily moves of USDT and USDC over the quarter link at 0.17 (they travel apart).

Compared: Solana and OP Mainnet (Optimism)

	Solana	OP Mainnet (Optimism)
What kind of network	Base network (L1)	Optimistic rollup (L2)
What pays the fee	SOL	ETH
How expensive	≈ $0.0006	≈ $0.0002
How fast	fast	fast
Block time	~0.4 sec	~2 sec
Address format	base58, 32–44	0x…
Memo or tag needed	not required	not required
Ethereum-format address (0x…)	no	yes
Withdrawal to Ethereum through the official bridge	—	≈ 7 days — the challenge window runs

The cost and speed marks are given against each other: both drift with the load on the network.

How an exchange differs from an ordinary bridge

	Velorex	Ordinary bridge
What arrives at the address	the USDC token in the OP Mainnet (Optimism) network	The very same stablecoin: turning USDT into USDC is one more operation
Wallet connection and signatures	We do without them: the payout goes to the address from the order	Mandatory: the wallet is connected, contract transactions are signed
Is a OP Mainnet (Optimism) coin needed for fees	Not required to receive	As a rule yes, otherwise the funds cannot be claimed or moved on
When it arrives	As soon as Solana gathers confirmations; the status is shown on the order page	Set by the bridge itself and by the load on both networks
Who holds the funds on the way	Velorex — until the order is closed by the payout	The smart contract of the bridge or its validators

Solana → OP Mainnet (Optimism): the full list of directions The OP Mainnet (Optimism) blockchain

Why people take the USDT SOL → USDC Optimism route

It works both waysThe USDC Optimism → USDT SOL direction is open as well — going back into USDT takes the same route and the same automation.

Common questions: USDT SOL → USDC Optimism

What rate does USDT SOL to USDC Optimism run at?

As of Sep 30, 2026 21:05 it is 1 USDT SOL = 0.9996 USDC Optimism. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.999359.

What amounts does USDT SOL → USDC Optimism accept?

From 100.67 to 10,000,000 USDT SOL per order. The floor is roughly $100.62.

Why can I not swap less than 100.67 USDT SOL?

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

How long does swapping USDT SOL for USDC Optimism take?

The clock starts with confirmations: as soon as Solana 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. A block in Solana closes in about 0.4 sec.

Will real USDC be credited, or a wrapper?

USDC Optimism is the ordinary USDC token of the OP Mainnet (Optimism) network: exactly the same one an exchange sends when you withdraw into this blockchain.

Is ETH needed to receive USDC Optimism?

Not to receive. ETH comes in handy later, when you decide to move USDC from your address.

Which network will USDC Optimism arrive in?

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

Which network is cheaper for receiving USDC?

Usually USDC SOL, USDC Arbitrum, USDC BEP20, USDC AVAX C, USDC Optimism, USDC Polygon 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 USDT SOL to USDC Optimism rate do over the month?

Over the month, minus 0.02%: a low of 0.999645, a high of 1.0002, an average of 0.999909 USDC Optimism per 1 USDT SOL.

Can I swap back, USDC Optimism for USDT SOL?

Yes, the reverse is open too: 1 USDC Optimism = 1.0004 USDT SOL. The link to switch sits under the calculator.