USDC Optimism (OP Mainnet (Optimism)) → USDT ERC20 (Ethereum)

Dollars change networks: send USDC Optimism in OP Mainnet (Optimism), collect USDT ERC20 in Ethereum. One order.

Rate as of Nov 1, 2026 05:24

Orders from: 200 USDC Optimism ≈ $200.00
Payout network: Ethereum (ERC20)
24 hours: −0.02%

You send

USDC Optimism

You get 2,003

USDT ERC20

Start the order

Rate: 1 USDC Optimism = 1.0015 USDT ERC20
From: 200 USDC Optimism
Up to: 10,000,000 USDC Optimism

The figure is indicative; the exact amount is locked in the order.

The direction runs at 1.0015 USDT ERC20 per USDC Optimism, or 0.998502 USDC Optimism per USDT ERC20. Market over 24 hours: USDC Optimism against USDT ERC20 minus 0.02%. The week added minus 0.01%.

The weekly corridor ran from 1.0003 to 1.0012 USDT ERC20, a spread of 0.09%. A single order takes 200 to 10,000,000 USDC Optimism. In dollars that is roughly $200.00.

The payout leaves in the Ethereum (ERC20) network, so the receiving address has to belong to that network. By market cap USD Coin sits 6th ($71.71 B) and Tether 3th ($180.04 B). Daily moves of USDC and USDT over 90 days line up at 0.13 (they travel apart).

Who takes the USDC Optimism → USDT ERC20 route

A road both waysThe USDT ERC20 → USDC Optimism direction is open too, so going back into USDC takes the same route.

USDC Optimism → USDT ERC20 rate and amounts

1 USDC Optimism = 1.0015 USDT ERC20

1 USDT ERC20 = 0.998502 USDC Optimism

Send USDC Optimism — receive USDT ERC20

USDC Optimism	USDT ERC20
200	200.3
1,000	1,001.5
2,000	2,003
10,000	10,015
20,000	20,030
100,000	100,150

Need USDT ERC20 — send this much USDC Optimism

USDT ERC20	USDC Optimism
500	499.2511
1,000	998.5022
5,000	4,992.51
10,000	9,985.02
50,000	49,925.11
100,000	99,850.22

Payout network for USDT

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

Network	Per USDC Optimism	From	Network fee	Speed
OMNI	1.0015	—	—	—
Ethereum (ERC20) open now	1.0015	200 USDC Optimism	≈ $0.0057	medium
TRON (TRC20)	1.0015	200 USDC Optimism	≈ $2.1	fast
BNB Smart Chain (BEP20)	1.0015	200 USDC Optimism	≈ $0.0023	fast
Solana	1.0015	200 USDC Optimism	≈ $0.00048	fast
Polygon	1.0015	200 USDC Optimism	≈ $0.0016	fast
Arbitrum One	1.0015	200 USDC Optimism	≈ $0.003	fast
TON	1.0015	200 USDC Optimism	low	fast
Avalanche C-Chain	1.0015	—	≈ $0.0014	fast
NEAR	1.0015	—	—	—
Optimism	1.0015	—	≈ $0.00015	fast

USDT network fees

How the USDC Optimism → USDT ERC20 order runs

Work out the amount in the calculator: orders start at 200 USDC Optimism.
Enter a USDT address in Ethereum (ERC20) and a way to reach you.
Send USDC Optimism in Optimism for exactly the amount stated in the order.
Once the network confirms your transfer, Tether leaves for your address. The order page tracks every step.

Swap USDC Optimism for USDT ERC20

Check this before sending USDC Optimism

The address network is Ethereum (ERC20). Sending through another network usually means losing the transfer.
The transfer must not be smaller than 200 USDC Optimism.
Copy the address whole, then compare the first and last characters after pasting.
Ethereum, Arbitrum, Optimism, BNB Smart Chain and Polygon all use the same address shape (0x…). Make sure the wallet is switched to Ethereum.
To move USDT on later, put a little ETH 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 Ethereum

	OP Mainnet (Optimism)	Ethereum
Network type	L2, optimistic rollup	Layer one (L1)
Fees are paid in	ETH	ETH
Fee level	≈ $0.00015	≈ $0.0057
Speed	fast	medium
Block	~2 sec	~12 sec
Address shape	0x…	0x…
Memo or tag	not needed	not needed
Ethereum-style address (0x…)	yes	yes
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	USDT in Ethereum	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 Ethereum	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	≈ 7 days for the official withdrawal from OP Mainnet (Optimism) to Ethereum
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) → Ethereum: all directions The Ethereum network

Where the USDC Optimism to USDT ERC20 rate has been

WeekMonthQuarterYear

high 1.0012 USDT ERC20low 1.0003 USDT ERC20

Oct 25, 2026 05:24Nov 1, 2026 05:24

high 1.0009 USDT ERC20low 1 USDT ERC20

Oct 1, 2026 03:00Oct 31, 2026 03:00

high 1.0009 USDT ERC20low 0.999785 USDT ERC20

Aug 2, 2026 03:00Oct 31, 2026 03:00

high 1.0032 USDT ERC20low 0.99687 USDT ERC20

Nov 1, 2025 03:00Oct 31, 2026 03:00

24 hours: −0.02%
Week: −0.01%
Weekly high: 1.0012 USDT ERC20
Weekly low: 1.0003 USDT ERC20
Spread: 0.09%

Market data from CoinGecko as of Nov 1, 2026 05:24; the exchange rate is calculated separately and differs. Where these numbers come from

How far USDC Optimism/USDT ERC20 travelled, by period

Period	High	Low	Middle	Net move
24 hours	1.0007	1.0005	1.0006	−0.02%
Week	1.0012	1.0003	1.0006	−0.01%
Month	1.0009	1	1.0004	+0.04%
Quarter	1.0009	0.999785	1.0003	+0.03%

Figures are in USDT ERC20 per unit sent, from market data.

Daily USDC Optimism → USDT ERC20 rate

Day	Close	Against the day before
Oct 31, 2026	1.0006 USDT ERC20	−0.02%
Oct 30, 2026	1.0008 USDT ERC20	+0.04%
Oct 29, 2026	1.0004 USDT ERC20	−0.01%
Oct 28, 2026	1.0005 USDT ERC20	−0.02%
Oct 27, 2026	1.0007 USDT ERC20	0%
Oct 26, 2026	1.0007 USDT ERC20	+0.03%
Oct 25, 2026	1.0004 USDT ERC20	−0.01%

Daily RubyCash rate: USDC Optimism → USDT ERC20

Date	RubyCash rate	Market rate
Nov 1, 2026	1.0014 USDT ERC20	1.0005
Oct 31, 2026	1.0015 USDT ERC20	1.0005
Oct 30, 2026	1.0018 USDT ERC20	1.0006
Oct 29, 2026	1.0014 USDT ERC20	1.0006
Oct 28, 2026	1.0009 USDT ERC20	1.0004
Oct 27, 2026	1.0014 USDT ERC20	1.0005
Oct 26, 2026	1.0015 USDT ERC20	1.0006
Oct 25, 2026	1.0012 USDT ERC20	1.0005
Oct 24, 2026	1.0014 USDT ERC20	1.0004
Oct 22, 2026	1.001 USDT ERC20	1.0005
Oct 21, 2026	1.001 USDT ERC20	1.0003
Oct 20, 2026	1.0008 USDT ERC20	1.0005
Oct 19, 2026	1.0011 USDT ERC20	1.0007
Oct 18, 2026	1.0013 USDT ERC20	1.0006

Our own rate is written down every hour; the table keeps the last entry of each day. The market column is the ratio of the same two coins on CoinGecko at that moment. Where these numbers come from

The numbers on USDC and USDT

USD Coin USDC

Price: $0.999981
24 hours: +0.02%
Week: +0.04%
Market cap: $71.71 B
24-hour turnover: $5.9 B
Rank by cap: #6
In circulation: 71.71 B USDC
Record price: $1.04

Tether USDT

Price: $0.999457
24 hours: +0.04%
Week: +0.04%
Market cap: $180.04 B
24-hour turnover: $25.8 B
Rank by cap: #3
In circulation: 180.12 B USDT
Record price: $1.32

Source: CoinGecko, Nov 1, 2026 05:24.

USD Coin against Tether

	USD Coin (USDC)	Tether (USDT)
Ticker	USDC	USDT
Type	token	token
Network	Optimism	Ethereum (ERC20)
Fees are paid in	ETH	ETH
Launched	2018	2014
Built by	Circle	Tether Limited
Supply cap	no cap	no cap
In circulation	71.71 B USDC	180.12 B USDT
Market cap	$71.71 B	$180.04 B
Rank by cap	#6	#3

Daily moves of USDC and USDT over 90 days line up at 0.13 — they travel apart.

Common questions: USDC Optimism → USDT ERC20

What rate does USDC Optimism to USDT ERC20 run at?

As of Nov 1, 2026 05:24 it is 1 USDC Optimism = 1.0015 USDT ERC20. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $1.00.

What amounts does USDC Optimism → USDT ERC20 accept?

From 200 to 10,000,000 USDC Optimism per order. The lower limit is roughly $200.00.

Where does the 200 USDC Optimism floor come from?

Network fees and order handling eat a small transfer alive — below 200 USDC 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 USDC Optimism, and that one goes to the blockchain, not to us.

How long does USDC Optimism to USDT ERC20 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 USDT arrive, or a wrapper?

USDT ERC20 is the standard USDT token in Ethereum — exactly what exchanges send when they withdraw into this network.

Do I need ETH to receive USDT ERC20?

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

What is wrong with the official OP Mainnet (Optimism) bridge?

The official withdrawal from OP Mainnet (Optimism) to Ethereum waits around seven days — that is the challenge period of an optimistic rollup. Here USDT ERC20 arrives as soon as the order is processed.

Which network will USDT ERC20 arrive in?

The payout leaves in Ethereum (ERC20). Make sure the receiving wallet works with that network.

Where is receiving USDT cheaper?

The cheapest is usually USDT BEP20, USDT SOL, USDT Polygon, USDT Arbitrum, USDT TON, USDT AVAX C, USDT 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 USDC Optimism to USDT ERC20 rate do this month?

The month came in at plus 0.04%. Low 1, high 1.0009, middle 1.0004 USDT ERC20 per USDC Optimism.

Can I go back, USDT ERC20 to USDC Optimism?

Yes, the reverse direction is open: 1 USDT ERC20 = 0.998702 USDC Optimism. The link sits right under the calculator.