Stablecoins from OP Mainnet (Optimism) to Solana: USDT Optimism → USDC SOL

Q: What rate does USDT Optimism to USDC SOL run at?

As of Sep 17, 2026 13:43 it is 1 USDT Optimism = 0.9996 USDC SOL. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.999151.

Q: What amounts does USDT Optimism → USDC SOL accept?

From 200 to 10,000,000 USDT Optimism per order. The lower limit is roughly $199.82.

Q: Where does the 200 USDT Optimism floor come from?

Network fees and order handling eat a small transfer alive — below 200 USDT Optimism the swap stops making sense for either side.

Q: What else is taken on top of the rate?

The payout is already calculated at the rate in the calculator. On top of it you only pay the network fee for sending USDT Optimism, and that one goes to the blockchain, not to us.

Q: How long does USDT Optimism to USDC SOL take?

The clock starts with confirmations: the order goes into work once Optimism confirms your transfer. After that it comes down to how busy the network is. A block in Optimism closes in about 2 sec.

Q: Will native USDC arrive, or a wrapper?

USDC SOL is the standard USDC token in Solana — exactly what exchanges send when they withdraw into this network.

Q: Do I need SOL to receive USDC SOL?

Not to receive. SOL comes into play later, when you want to send USDC from your address.

Q: Which network will USDC SOL arrive in?

The payout leaves in Solana. Make sure the receiving wallet works with that network.

Q: Where is receiving USDC cheaper?

The cheapest is usually USDC SOL, USDC Polygon, USDC Arbitrum, USDC BEP20, USDC AVAX C, USDC Optimism. Still, the network is chosen by what the recipient supports, not by the fee.

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

The rate is pinned to the order and does not move while the order is alive. It can be recalculated if the payment arrives late or for a different amount — so send the exact sum, and send it promptly.

One USDT Optimism buys 0.9996 USDC SOL right now; the other way round, 1 USDC SOL is 1.0004 USDT Optimism. Market over 24 hours: USDT Optimism against USDC SOL minus 0.01%. The week added minus 0.04%.

The weekly corridor ran from 0.999575 to 0.999993 USDC SOL, a spread of 0.04%. A single order takes 200 to 10,000,000 USDT Optimism. In dollars that is roughly $199.82.

The payout leaves in the Solana network, so the receiving address has to belong to that network. By market cap Tether sits 3th ($183.28 B) and USD Coin 6th ($73.6 B). Daily moves of USDT and USDC over 90 days line up at 0.16 (they travel apart).

Who takes the USDT Optimism → USDC SOL route

A road both waysThe USDC SOL → USDT Optimism direction is open too, so going back into USDT takes the same route.

USDT Optimism → USDC SOL rate and amounts

1 USDT Optimism = 0.9996 USDC SOL

1 USDC SOL = 1.0004 USDT Optimism

Send USDT Optimism — receive USDC SOL

USDT Optimism	USDC SOL
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

Need USDC SOL — send this much USDT Optimism

USDC SOL	USDT Optimism
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

Payout network for USDC

The same USDC goes out in several networks. Rates and lower limits differ, and the fee is charged by the network itself.

Network	Per USDT Optimism	From	Network fee	Speed
Ethereum (ERC20)	0.9996	200 USDT Optimism	≈ $0.076	medium
Solana open now	0.9996	200 USDT Optimism	≈ $0.0005	fast
Polygon	0.9996	200 USDT Optimism	≈ $0.0017	fast
Arbitrum One	0.9996	—	≈ $0.0032	fast
BASE	0.9996	—	—	—
BNB Smart Chain (BEP20)	0.9996	—	≈ $0.0024	fast
Avalanche C-Chain	0.9996	—	≈ < $0.0001	fast
NEAR	0.9996	—	—	—
Optimism	0.9996	—	≈ $0.00018	fast
XLM	0.9996	—	—	—

USDC network fees

How the USDT Optimism → USDC SOL order runs

Work out the amount in the calculator: orders start at 200 USDT Optimism.
Enter a USDC address in Solana and a way to reach you.
Send USDT Optimism in Optimism for exactly the amount stated in the order.
Once the network confirms your transfer, USD Coin leaves for your address. The order page tracks every step.

Swap USDT Optimism for USDC SOL

Check this before sending USDT Optimism

The address network is Solana. Sending through another network usually means losing the transfer.
The transfer must not be smaller than 200 USDT Optimism.
Copy the address whole, then compare the first and last characters after pasting.
To move USDC on later, put a little SOL at the same address.
Coins go through an AML check: a flagged transfer can be held until the check is finished.

OP Mainnet (Optimism) against Solana

	OP Mainnet (Optimism)	Solana
Network type	L2, optimistic rollup	Layer one (L1)
Fees are paid in	ETH	SOL
Fee level	≈ $0.00018	≈ $0.0005
Speed	fast	fast
Block	~2 sec	~0.4 sec
Address shape	0x…	base58, 32–44
Memo or tag	not needed	not needed
Ethereum-style address (0x…)	yes	no
Official withdrawal to Ethereum	≈ 7 days (challenge period)	—

Fee and speed levels are comparative: both move with how busy the network is.

How this differs from a classic bridge

	RubyCash	Classic bridge
What lands at your address	USDC in Solana	The same stablecoin; turning USDT into USDC is a separate step
Wallet and signatures	Not needed: the coins go to the address from the order	Needed: connect the wallet and sign contract transactions
A coin for fees in Solana	Not needed to receive	Often needed, or the funds cannot be claimed or moved on
Timing	After confirmations in OP Mainnet (Optimism); the order page tracks it	Depends on the bridge and the load of both networks
Who holds the funds meanwhile	RubyCash for the life of the order, with an AML check	The bridge contract or its validators

Bridge OP Mainnet (Optimism) → Solana: all directions The Solana network

Where the USDT Optimism to USDC SOL rate has been

WeekMonthQuarterYear

high 0.999993 USDC SOLlow 0.999575 USDC SOL

Sep 10, 2026 13:47Sep 17, 2026 13:47

high 1.0002 USDC SOLlow 0.999577 USDC SOL

Aug 18, 2026 03:00Sep 17, 2026 03:00

high 1.0002 USDC SOLlow 0.999327 USDC SOL

Jun 19, 2026 03:00Sep 17, 2026 03:00

high 1.0017 USDC SOLlow 0.996801 USDC SOL

Sep 18, 2025 03:00Sep 17, 2026 03:00

24 hours: −0.01%
Week: −0.04%
Weekly high: 0.999993 USDC SOL
Weekly low: 0.999575 USDC SOL
Spread: 0.04%

Market data from CoinGecko as of Sep 17, 2026 11:54; the exchange rate is calculated separately and differs. Where these numbers come from

How far USDT Optimism/USDC SOL travelled, by period

Period	High	Low	Middle	Net move
24 hours	0.99975	0.999575	0.999647	−0.01%
Week	0.999993	0.999575	0.999838	−0.04%
Month	1.0002	0.999577	0.999912	0%
Quarter	1.0002	0.999327	0.999705	0%

Figures are in USDC SOL per unit sent, from market data.

Daily USDT Optimism → USDC SOL rate

Day	Close	Against the day before
Sep 17, 2026	0.999591 USDC SOL	−0.01%
Sep 16, 2026	0.999723 USDC SOL	−0.03%
Sep 15, 2026	0.999985 USDC SOL	+0.01%
Sep 14, 2026	0.999848 USDC SOL	−0.01%
Sep 13, 2026	0.999949 USDC SOL	0%
Sep 12, 2026	0.999966 USDC SOL	+0.02%
Sep 11, 2026	0.999808 USDC SOL	0%

The numbers on USDT and USDC

Tether USDT

Price: $0.999122
24 hours: −0.02%
Week: 0%
Market cap: $183.28 B
24-hour turnover: $58.85 B
Rank by cap: #3
In circulation: 183.44 B USDT
Record price: $1.32

USD Coin USDC

Price: $0.999551
24 hours: −0.01%
Week: 0%
Market cap: $73.6 B
24-hour turnover: $18.23 B
Rank by cap: #6
In circulation: 73.64 B USDC
Record price: $1.04

Source: CoinGecko, Sep 17, 2026 11:54.

Tether against USD Coin

	Tether (USDT)	USD Coin (USDC)
Ticker	USDT	USDC
Type	token	token
Network	Optimism	Solana
Fees are paid in	ETH	SOL
Launched	2014	2018
Built by	Tether Limited	Circle
Supply cap	no cap	no cap
In circulation	183.44 B USDT	73.64 B USDC
Market cap	$183.28 B	$73.6 B
Rank by cap	#3	#6

Daily moves of USDT and USDC over 90 days line up at 0.16 — they travel apart.

Common questions: USDT Optimism → USDC SOL

What rate does USDT Optimism to USDC SOL run at?

As of Sep 17, 2026 13:43 it is 1 USDT Optimism = 0.9996 USDC SOL. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.999151.

What amounts does USDT Optimism → USDC SOL accept?

From 200 to 10,000,000 USDT Optimism per order. The lower limit is roughly $199.82.

Where does the 200 USDT Optimism floor come from?

Network fees and order handling eat a small transfer alive — below 200 USDT Optimism the swap stops making sense for either side.

What else is taken on top of the rate?

The payout is already calculated at the rate in the calculator. On top of it you only pay the network fee for sending USDT Optimism, and that one goes to the blockchain, not to us.

How long does USDT Optimism to USDC SOL take?

The clock starts with confirmations: the order goes into work once Optimism confirms your transfer. After that it comes down to how busy the network is. A block in Optimism closes in about 2 sec.

Will native USDC arrive, or a wrapper?

USDC SOL is the standard USDC token in Solana — exactly what exchanges send when they withdraw into this network.

Do I need SOL to receive USDC SOL?

Not to receive. SOL comes into play later, when you want to send USDC from your address.

Which network will USDC SOL arrive in?

The payout leaves in Solana. Make sure the receiving wallet works with that network.

Where is receiving USDC cheaper?

The cheapest is usually USDC SOL, USDC Polygon, USDC Arbitrum, USDC BEP20, USDC AVAX C, USDC Optimism. Still, the network is chosen by what the recipient supports, not by the fee.

What if the rate moves while I am paying?

The rate is pinned to the order and does not move while the order is alive. It can be recalculated if the payment arrives late or for a different amount — so send the exact sum, and send it promptly.

What did the USDT Optimism to USDC SOL rate do this month?

The month came in at a move of 0%. Low 0.999577, high 1.0002, middle 0.999912 USDC SOL per USDT Optimism.

Can I go back, USDC SOL to USDT Optimism?

Yes, the reverse direction is open: 1 USDC SOL = 1.0006 USDT Optimism. The link sits right under the calculator.