Cardano (ADA) to Tether (USDT Optimism): Rate, Chart and Comparison

Live Cardano 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 21, 2026, 20:38

Minimum: 818.0428 ADA ≈ $199.22
Receiving network: Optimism
24h rate change: +6.64%

You send

ADA

You get 2,440.02

USDT Optimism

Go to exchange

Rate: 1 ADA = 0.244002 USDT Optimism
Minimum: 818.0428 ADA
Maximum: 41,100,000 ADA

The amount you get is estimated at the current rate.

Cardano is exchanged to Tether at 1 ADA = 0.244002 USDT Optimism, so 1 USDT Optimism costs 4.0983 ADA. According to market data, the ADA to USDT Optimism rate rose by 6.64% over the last 24 hours. Over the week it rose by 16.06%.

Over the last 7 days the rate moved between 0.191132 and 0.245734 USDT Optimism — a range of 28.57%. You can exchange from 818.0428 to 41,100,000 ADA. That is roughly $199.22 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, Cardano ranks #18 ($9.14 B) and Tether ranks #3 ($183.38 B). The correlation of daily ADA and USDT price changes over the last 90 days is 0.06 (weak).

Why exchange ADA to USDT Optimism

Protection from volatilityOver the last 30 days ADA changed by +4.6%. USDT is pegged to the dollar, so after the swap your funds no longer depend on the ADA price.
Easy to switch backThe USDT Optimism → ADA direction is also available, so you can move back to ADA if needed.

How much is 1 ADA in USDT Optimism today

1 ADA = 0.244002 USDT Optimism

1 USDT Optimism = 4.0983 ADA

How much USDT Optimism you get for ADA

ADA	USDT Optimism
1,000	244.0024
2,000	488.0049
10,000	2,440.02
20,000	4,880.05
100,000	24,400.24
200,000	48,800.49

How much ADA you need to get USDT Optimism

USDT Optimism	ADA
200	819.6639
1,000	4,098.32
2,000	8,196.64
10,000	40,983.2
20,000	81,966.39
100,000	409,831.96

Which network to receive USDT on

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

Network	Rate per 1 ADA	Minimum	Network fee	Speed
TRON (TRC20)	0.243267	22,000 ADA	≈ $2.4	fast
Solana	0.243267	22,000 ADA	≈ $0.00059	fast
Polygon	0.243267	22,000 ADA	≈ $0.002	fast
Ethereum (ERC20)	0.244002	818.0428 ADA	≈ $0.085	moderate
BNB Smart Chain (BEP20)	0.244002	818.0428 ADA	≈ $0.0026	fast
Arbitrum One	0.244002	818.0428 ADA	≈ $0.0038	fast
Optimism this page	0.244002	818.0428 ADA	≈ $0.00021	fast
TON	0.244002	818.0428 ADA	low	fast

ADA → USDT: compare all networks USDT network fees now

ADA to USDT Optimism rate chart

7 days30 days90 days1 year

high 0.245734 USDT Optimismlow 0.191132 USDT Optimism

Sep 14, 2026, 20:39Sep 21, 2026, 20:39

high 0.2397 USDT Optimismlow 0.192692 USDT Optimism

Aug 22, 2026, 03:00Sep 21, 2026, 03:00

high 0.2397 USDT Optimismlow 0.143821 USDT Optimism

Jun 23, 2026, 03:00Sep 21, 2026, 03:00

high 0.884134 USDT Optimismlow 0.143821 USDT Optimism

Sep 22, 2025, 03:00Sep 21, 2026, 03:00

24 hours: +6.64%
7 days: +16.06%
7-day high: 0.245734 USDT Optimism
7-day low: 0.191132 USDT Optimism
Range: 28.57%

CoinGecko market data as of Sep 21, 2026, 20:36. The exchange rate may differ from the market rate. How we calculate the data

ADA/USDT Optimism volatility and changes

Period	High	Low	Average	Change
24 hours	0.245734	0.226589	0.234756	+6.64%
7 days	0.245734	0.191132	0.213619	+16.06%
30 days	0.2397	0.192692	0.212094	+4.61%
90 days	0.2397	0.143821	0.185318	+51.22%

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

ADA to USDT Optimism rate over the last 7 days

Date	Daily close	Daily change
Sep 21, 2026	0.2397 USDT Optimism	+5.19%
Sep 20, 2026	0.227869 USDT Optimism	+1.48%
Sep 19, 2026	0.224541 USDT Optimism	+10.8%
Sep 18, 2026	0.202655 USDT Optimism	+3.24%
Sep 17, 2026	0.196292 USDT Optimism	+0.42%
Sep 16, 2026	0.195465 USDT Optimism	−6.28%
Sep 15, 2026	0.208557 USDT Optimism	+2.38%

ADA and USDT market data

Cardano ADA

Price: $0.243533
24h change: +6.66%
7d change: +16.92%
Market cap: $9.14 B
24h volume: $777.98 M
Market cap rank: #18
Circulating supply: 37.52 B ADA
All-time high: $3.09

Tether USDT

Price: $0.999948
24h change: +0.02%
7d change: +0.03%
Market cap: $183.38 B
24h volume: $95.44 B
Market cap rank: #3
Circulating supply: 183.38 B USDT
All-time high: $1.32

CoinGecko data as of Sep 21, 2026, 20:36.

Cardano vs Tether

	Cardano (ADA)	Tether (USDT)
Ticker	ADA	USDT
Type	native blockchain coin	token
Launched	2017	2014
Created by	Charles Hoskinson	Tether Limited
Consensus	Proof of Stake (Ouroboros)	—
Block time	~20 sec	—
Max supply	45 B ADA	no cap
Transaction privacy	public transactions	—
Circulating supply	37.52 B ADA	183.38 B USDT
Market cap	$9.14 B	$183.38 B
Market cap rank	#18	#3
Network	—	Optimism
Network fee paid in	—	ETH

90-day correlation of daily ADA and USDT price changes: 0.06 — weak.

What to know about Cardano and Tether

Cardano (ADA)

Cardano (ADA) is a Proof of Stake blockchain launched in 2017 and led by Charles Hoskinson, one of the co-founders of Ethereum. The project is known for its research-driven, peer-reviewed approach to development.

Sending and receiving ADA

Cardano addresses start with addr1. Fees are low and predictable. A wallet may require a small minimum amount of ADA to accompany token transfers.

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.

What Tether is used for

USDT is used to park funds without price volatility, to settle trades, to move dollars across borders and to pay for services. It is the most traded asset in crypto and the most common way to lock in profits after selling other coins.

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 Cardano to Tether

Enter the ADA amount in the calculator (minimum 818.0428 ADA) and click “Go to exchange”.
Enter your USDT wallet address on the Optimism network and your contact details.
Send exactly the specified amount of ADA on the Cardano 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 ADA to USDT Optimism

What to check before exchanging ADA 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 818.0428 ADA.
Copy the whole address and check the first and last characters after pasting.
Funds go through an AML check; high-risk transfers may be held until the check is complete.

ADA to USDT Optimism exchange FAQ

How much is 1 ADA in USDT Optimism today?

As of Sep 21, 2026, 20:38, the exchange rate is 1 ADA = 0.244002 USDT Optimism. It updates automatically; the calculator always shows the latest value. At market prices that is about $0.24399.

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

The minimum is 818.0428 ADA and the maximum is 41,100,000 ADA. The minimum is roughly $199.22.

Why is there a minimum amount for ADA to USDT Optimism?

The minimum (818.0428 ADA) 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 ADA to USDT Optimism?

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

How long does a ADA to USDT Optimism exchange take?

The order is processed once the ADA transfer gets the required number of confirmations on the Cardano network. Timing depends on network load. A new block on Cardano arrives roughly every 20 sec.

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 SOL, USDT Polygon, USDT BEP20, USDT Arbitrum, USDT Optimism, USDT TON. 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 ADA to USDT Optimism rate changed over the last month?

Over 30 days the rate rose by 4.61%: low 0.192692, high 0.2397, average 0.212094 USDT Optimism per 1 ADA.

Do I need to register to exchange ADA 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 ADA?

Yes, the reverse direction is available: 1 USDT Optimism = 4.1066 ADA. The link is below the calculator.