USD Coin (USDC ERC20) to Tether (USDT Optimism): Rate, Chart and Comparison

Live USD Coin to Tether rate, converter, price history, volatility and a side-by-side comparison of both coins. Ready to swap? Open the exchange form.

Rate updated: Sep 17, 2026, 12:14

Minimum: 200 USDC ERC20 ≈ $199.91
Receiving network: Optimism
24h rate change: +0.01%

You send

USDC ERC20

You get 2,001

USDT Optimism

Go to exchange

Rate: 1 USDC ERC20 = 1.0005 USDT Optimism
Minimum: 200 USDC ERC20
Maximum: 10,000,000 USDC ERC20

The amount you get is estimated at the current rate.

The current USDC ERC20 to USDT Optimism exchange rate is 1.0005 USDT Optimism per 1 USDC ERC20; the reverse rate is 1 USDT Optimism = 0.9995 USDC ERC20. According to market data, the USDC ERC20 to USDT Optimism rate rose by 0.01% over the last 24 hours. Over the week it rose by 0.03%.

Over the last 7 days the rate moved between 1 and 1.0005 USDT Optimism — a range of 0.05%. You can exchange from 200 to 10,000,000 USDC ERC20. That is roughly $199.91 or more.

USDT is sent to your address on the Optimism network, so make sure you provide an address on that network. By market cap, USD Coin ranks #6 ($73.6 B) and Tether ranks #3 ($183.29 B). The correlation of daily USDC and USDT price changes over the last 90 days is 0.15 (weak).

Why exchange USDC ERC20 to USDT Optimism

Easy to switch backThe USDT Optimism → USDC ERC20 direction is also available, so you can move back to USDC if needed.

How much is 1 USDC ERC20 in USDT Optimism today

1 USDC ERC20 = 1.0005 USDT Optimism

1 USDT Optimism = 0.9995 USDC ERC20

How much USDT Optimism you get for USDC ERC20

USDC ERC20	USDT Optimism
200	200.1
1,000	1,000.5
2,000	2,001
10,000	10,005
20,000	20,010
100,000	100,050

How much USDC ERC20 you need to get USDT Optimism

USDT Optimism	USDC ERC20
500	499.7501
1,000	999.5002
5,000	4,997.5
10,000	9,995
50,000	49,975.01
100,000	99,950.02

Which network to receive USDT on

USDT for USDC ERC20 can be received on different networks: rates and minimums differ, and the network fee depends on the blockchain.

Network	Rate per 1 USDC ERC20	Minimum	Network fee	Speed
TRON (TRC20)	1.0005	200 USDC ERC20	≈ $2.3	fast
BNB Smart Chain (BEP20)	0.9986	200 USDC ERC20	≈ $0.0024	fast
Solana	1.0005	200 USDC ERC20	≈ $0.0005	fast
Polygon	1.0005	200 USDC ERC20	≈ $0.0017	fast
Ethereum (ERC20)	1.0005	200 USDC ERC20	≈ $0.021	moderate
TON	1.0005	200 USDC ERC20	low	fast
Arbitrum One	1.0005	200 USDC ERC20	≈ $0.0032	fast
Optimism this page	1.0005	200 USDC ERC20	≈ $0.00016	fast

USDT network fees now

Ethereum vs OP Mainnet (Optimism): network comparison

	Ethereum	OP Mainnet (Optimism)
Network type	Layer 1	Layer 2 (optimistic rollup)
Fees are paid in	ETH	ETH
Fee level	≈ $0.021	≈ $0.00016
Speed	moderate	fast
Block time	~12 sec	~2 sec
Address format	0x…	0x…
Memo / tag	not needed	not needed
EVM-compatible addresses (0x…)	yes	yes
Withdrawal to Ethereum via the official bridge	—	~7 days (challenge period)

Fee and speed levels are relative and depend on network load.

Crystal-Trade or a classic bridge: what is the difference

	Crystal-Trade	Classic bridge
What you receive	USDT on OP Mainnet (Optimism)	The same stablecoin; switching between USDT and USDC needs a separate swap
Wallet connection and approvals	Not needed: you send coins to the order address	Needed: you connect a wallet and sign contract transactions
Coins for fees on OP Mainnet (Optimism)	Not needed to receive	Often needed to claim funds or move them after the bridge
Time	After the Ethereum confirmations; the status is shown on the order page	Depends on the bridge and the load of both networks
Who holds the funds during the transfer	Crystal-Trade, for the duration of the order (with an AML check)	The bridge smart contract or its validators

Bridge Ethereum → OP Mainnet (Optimism): all directions OP Mainnet (Optimism) bridge

USDC ERC20 to USDT Optimism rate chart

7 days30 days90 days1 year

high 1.0005 USDT Optimismlow 1 USDT Optimism

Sep 10, 2026, 12:17Sep 17, 2026, 12:17

high 1.0004 USDT Optimismlow 0.999785 USDT Optimism

Aug 17, 2026, 03:00Sep 16, 2026, 03:00

high 1.0007 USDT Optimismlow 0.999785 USDT Optimism

Jun 18, 2026, 03:00Sep 16, 2026, 03:00

high 1.0032 USDT Optimismlow 0.998284 USDT Optimism

Sep 17, 2025, 03:00Sep 16, 2026, 03:00

24 hours: +0.01%
7 days: +0.03%
7-day high: 1.0005 USDT Optimism
7-day low: 1 USDT Optimism
Range: 0.05%

CoinGecko market data as of Sep 17, 2026, 12:04. The exchange rate may differ from the market rate. How we calculate the data

USDC ERC20/USDT Optimism volatility and changes

Period	High	Low	Average	Change
24 hours	1.0004	1.0003	1.0004	+0.01%
7 days	1.0005	1	1.0002	+0.03%
30 days	1.0004	0.999785	1.0001	+0.01%
90 days	1.0007	0.999785	1.0003	+0.02%

Values are in USDT Optimism per 1 unit of the currency you send, based on market data.

USDC ERC20 to USDT Optimism rate over the last 7 days

Date	Daily close	Daily change
Sep 16, 2026	1.0004 USDT Optimism	+0.04%
Sep 15, 2026	1 USDT Optimism	−0.01%
Sep 14, 2026	1.0002 USDT Optimism	+0.01%
Sep 13, 2026	1.0001 USDT Optimism	0%
Sep 12, 2026	1 USDT Optimism	−0.02%
Sep 11, 2026	1.0002 USDT Optimism	0%
Sep 10, 2026	1.0001 USDT Optimism	0%

USDC and USDT market data

USD Coin USDC

Price: $0.99955
24h change: −0.01%
7d change: 0%
Market cap: $73.6 B
24h volume: $18.22 B
Market cap rank: #6
Circulating supply: 73.64 B USDC
All-time high: $1.04

Tether USDT

Price: $0.999125
24h change: −0.02%
7d change: −0.1%
Market cap: $183.29 B
24h volume: $58.96 B
Market cap rank: #3
Circulating supply: 183.44 B USDT
All-time high: $1.32

CoinGecko data as of Sep 17, 2026, 12:04.

USD Coin vs Tether

	USD Coin (USDC)	Tether (USDT)
Ticker	USDC	USDT
Type	token	token
Network	Ethereum (ERC20)	Optimism
Network fee paid in	ETH	ETH
Launched	2018	2014
Created by	Circle	Tether Limited
Max supply	no cap	no cap
Circulating supply	73.64 B USDC	183.44 B USDT
Market cap	$73.6 B	$183.29 B
Market cap rank	#6	#3

90-day correlation of daily USDC and USDT price changes: 0.15 — weak.

What to know about USD Coin and Tether

USD Coin (USDC)

USD Coin (USDC) is a dollar stablecoin issued by Circle since 2018. Each token is backed by reserves held in cash and short-term US Treasuries, and the reserve composition is regularly reported by the issuer.

Sending and receiving USDC

Send USDC only on the network the recipient supports: an Ethereum address and a Polygon address may look identical but the funds end up on different chains. Fees are paid in the native coin of the network (ETH, SOL, POL…).

Tether (USDT)

Tether (USDT) is the largest stablecoin: a token designed to stay at one US dollar. It was launched in 2014 by Tether Limited, which issues USDT against reserves that consist mostly of cash equivalents and short-term US Treasury bills.

Where to store Tether

USDT can be held in any wallet that supports the chosen network. Check that the wallet shows the official USDT contract, because fake tokens with the same name exist.

Ethereum (ERC20) network

ERC20 is the token standard on Ethereum. It is supported by almost every wallet and exchange, but the fee (gas) is paid in ETH and grows when the network is busy.

Optimism network

Optimism is an Ethereum layer-2 network. Addresses use the Ethereum format and fees are paid in ETH at a fraction of mainnet cost.

How to exchange USD Coin to Tether

Enter the USDC ERC20 amount in the calculator (minimum 200 USDC ERC20) and click “Go to exchange”.
Enter your USDT wallet address on the Optimism network and your contact details.
Send exactly the specified amount of USDC ERC20 on the Ethereum (ERC20) network to the details shown in the order.
Once the transfer is confirmed, Tether is sent to your address. You can track the order on its status page.

Exchange USDC ERC20 to USDT Optimism

What to check before exchanging USDC ERC20 to USDT Optimism

The recipient address must be on the Optimism network: funds sent on another network may be lost.
The amount sent must be at least 200 USDC ERC20.
Copy the whole address and check the first and last characters after pasting.
Addresses on Ethereum, Arbitrum, Optimism, BNB Smart Chain and Polygon look the same (0x…): make sure the wallet shows OP Mainnet (Optimism) as the network.
To move USDT on OP Mainnet (Optimism) later, you will need a little ETH on the same address.
Funds go through an AML check; high-risk transfers may be held until the check is complete.

USDC ERC20 to USDT Optimism exchange FAQ

How much is 1 USDC ERC20 in USDT Optimism today?

As of Sep 17, 2026, 12:14, the exchange rate is 1 USDC ERC20 = 1.0005 USDT Optimism. It updates automatically; the calculator always shows the latest value. At market prices that is about $0.999625.

What are the minimum and maximum amounts for USDC ERC20 to USDT Optimism?

The minimum is 200 USDC ERC20 and the maximum is 10,000,000 USDC ERC20. The minimum is roughly $199.91.

Why is there a minimum amount for USDC ERC20 to USDT Optimism?

The minimum (200 USDC ERC20) keeps network fees and order processing from eating a noticeable share of the exchange. Double-check the amount before sending.

Are there extra fees when exchanging USDC ERC20 to USDT Optimism?

The amount you get is calculated at the exchange rate shown in the calculator. The network fee for sending USDC ERC20 is paid by the sender and depends on the wallet and network load.

How long does a USDC ERC20 to USDT Optimism exchange take?

The order is processed once the USDC ERC20 transfer gets the required number of confirmations on the Ethereum (ERC20) network. Timing depends on network load. A new block on Ethereum (ERC20) arrives roughly every 12 sec.

Will I receive native USDT or a wrapped token?

USDT Optimism is the standard USDT token on OP Mainnet (Optimism) — the same one exchanges send when you withdraw to this network.

Do I need ETH to receive USDT Optimism?

Not to receive. You will need ETH later to send USDT from your OP Mainnet (Optimism) address.

How is this different from the official OP Mainnet (Optimism) bridge?

The official deposit from Ethereum to OP Mainnet (Optimism) needs a wallet connection and a contract transaction. On Crystal-Trade you only send USDC ERC20 to the order address.

Which network will I receive USDT Optimism on?

USDT is sent on the Optimism network. Make sure the recipient address supports this network.

Which network is cheapest to receive USDT?

The lowest network fees are usually on USDT BEP20, USDT SOL, USDT Polygon, USDT TON, USDT Arbitrum, USDT Optimism. Choose a network supported by the recipient’s wallet or exchange.

What happens if the rate changes during the exchange?

The final amount is set in the order when it is created. If the payment arrives after the order expires or in a different amount, it may be recalculated at the current rate, so send the exact amount without delay.

How has the USDC ERC20 to USDT Optimism rate changed over the last month?

Over 30 days the rate rose by 0.01%: low 0.999785, high 1.0004, average 1.0001 USDT Optimism per 1 USDC ERC20.

Do I need to register to exchange USDC ERC20 to USDT Optimism?

No, you only need to enter the receiving details and contact information in the order.

Can I exchange USDT Optimism back to USDC ERC20?

Yes, the reverse direction is available: 1 USDT Optimism = 0.9995 USDC ERC20. The link is below the calculator.