Tether (USDT Optimism) → Cardano (ADA)
The order runs on autopilot: the rate is locked when you create it, and the payout leaves as soon as the network confirms your transfer. No manual approval, no working hours.
Rate and amounts for USDT Optimism → ADA
1 USDT Optimism = 4.0356 ADA
1 ADA = 0.247796 USDT Optimism
Rate as of Sep 30, 2026 14:50
- Orders from
- 100.67 USDT Optimism ≈ $100.63
- Payout network
- Cardano
- 24 hours
- +2.29%
Current maths: 4.0356 ADA for every USDT Optimism, and 0.247796 USDT Optimism per ADA in reverse. Over 24 hours USDT Optimism/ADA came in at plus 2.29%. Over the week, plus 3.62%.
The weekly range ran from 3.86 to 4.2339 ADA, a spread of 9.69%. One order takes from 100.67 to 10,000,000 USDT Optimism. In dollars that is roughly $100.63.
Market capitalisation puts Tether at No. 3 ($183.8 B) and Cardano at No. 17 ($9.24 B). Over 90 days the daily moves of USDT and ADA correlate at 0.07 (they travel apart).
Rate and amounts for USDT Optimism → ADA
| USDT Optimism | ADA |
|---|---|
| 200 | 807.114 |
| 1,000 | 4,035.57 |
| 2,000 | 8,071.14 |
| 10,000 | 40,355.7 |
| 20,000 | 80,711.4 |
| 100,000 | 403,556.99 |
| ADA | USDT Optimism |
|---|---|
| 500 | 123.8982 |
| 2,000 | 495.593 |
| 5,000 | 1,238.98 |
| 20,000 | 4,955.93 |
| 50,000 | 12,389.82 |
| 200,000 | 49,559.3 |
How the USDT Optimism → ADA exchange runs
- Work out the amount in the calculator — orders start at 100.67 USDT Optimism.
- Give a ADA address on Cardano and a contact for the order.
- Send USDT Optimism on Optimism, exactly the amount the order shows.
- Nothing else is needed from you: as soon as the network confirms the transfer, the robot sends Cardano to your address. The order page shows the status.
Check this before sending USDT Optimism
- The address network is Cardano. Sending through another network almost always means losing the transfer.
- The transfer must not be smaller than 100.67 USDT Optimism.
- Copy the address in full, then check its first and last characters once it is pasted.
- 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 Optimism to ADA rate has moved
high 4.2339 ADAlow 3.86 ADA
Sep 23, 2026 14:51Sep 30, 2026 14:51
high 5.1896 ADAlow 3.8661 ADA
Aug 31, 2026 05:00Sep 30, 2026 05:00
high 6.4965 ADAlow 3.8661 ADA
Jul 2, 2026 05:00Sep 30, 2026 05:00
high 6.9531 ADAlow 1.144 ADA
Oct 1, 2025 05:00Sep 30, 2026 05:00
- 24 hours
- +2.29%
- Week
- +3.62%
- Weekly high
- 4.2339 ADA
- Weekly low
- 3.86 ADA
- Spread
- 9.69%
Market data from CoinGecko as of Sep 30, 2026 14:27. The exchange rate is worked out separately and differs from the market one. How these numbers are counted
The USDT Optimism/ADA spread by period
| Period | High | Low | Middle | Period result |
|---|---|---|---|---|
| 24 hours | 4.1326 | 3.9578 | 4.055 | +2.29% |
| Week | 4.2339 | 3.86 | 4.0184 | +3.62% |
| Month | 5.1896 | 3.8661 | 4.552 | −22.28% |
| Quarter | 6.4965 | 3.8661 | 5.2168 | −37.91% |
Figures are in ADA per unit of the currency you send, taken from market data.
Daily USDT Optimism → ADA rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 30, 2026 | 4.0335 ADA | −0.26% |
| Sep 29, 2026 | 4.0442 ADA | +3.16% |
| Sep 28, 2026 | 3.9202 ADA | −0.42% |
| Sep 27, 2026 | 3.9366 ADA | +1.83% |
| Sep 26, 2026 | 3.8661 ADA | −4.25% |
| Sep 25, 2026 | 4.0377 ADA | −3.7% |
| Sep 24, 2026 | 4.193 ADA | +6.53% |
Market data: USDT and ADA
Tether USDT- Price
- $0.999631
- 24 hours
- −0.01%
- Week
- −0.02%
- Market cap
- $183.8 B
- 24-hour turnover
- $55.29 B
- Rank by cap
- #3
- In circulation
- 183.87 B USDT
- All-time high
- $1.32
Cardano ADA- Price
- $0.246371
- 24 hours
- −2.25%
- Week
- −4.29%
- Market cap
- $9.24 B
- 24-hour turnover
- $436.58 M
- Rank by cap
- #17
- In circulation
- 37.54 B ADA
- All-time high
- $3.09
Source: CoinGecko, Sep 30, 2026 14:27.
Tether and Cardano: how they differ
| Tether (USDT) | Cardano (ADA) | |
|---|---|---|
| Ticker | USDT | ADA |
| Type | token | coin of its own network |
| Network | Optimism | — |
| Fees are paid in | ETH | — |
| Launched | 2014 | 2017 |
| Built by | Tether Limited | Charles Hoskinson |
| Supply cap | no cap | 45 B ADA |
| In circulation | 183.87 B USDT | 37.54 B ADA |
| Market cap | $183.8 B | $9.24 B |
| Rank by cap | #3 | #17 |
| Consensus | — | Proof of Stake (Ouroboros) |
| Block | — | ~20 sec |
| Privacy | — | transfers are public |
Daily moves of USDT and ADA over the quarter link at 0.07 (they travel apart).
Why people take the USDT Optimism → ADA route
- Entering ADA from dollarsUSDT goes into Cardano in one step, with no coin in between: over the last month ADA posted +28.63%.
- Fuel for CardanoWithout Cardano you cannot pay for a transfer or a contract call in Cardano — the coin is needed for anything that happens in that ecosystem.
- Different basketsDaily moves of USDT and ADA over 90 days link at 0.07 (they travel apart) — the weaker the link, the less a portfolio rests on one coin.
Common questions: USDT Optimism → ADA
What rate does USDT Optimism to ADA run at?
As of Sep 30, 2026 14:50 it is 1 USDT Optimism = 4.0356 ADA. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.994247.
What amounts does USDT Optimism → ADA accept?
From 100.67 to 10,000,000 USDT Optimism per order. The floor is roughly $100.63.
Why can I not swap less than 100.67 USDT Optimism?
The network fee and the handling do not depend on the amount. On a transfer below 100.67 USDT Optimism 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 Optimism, and the blockchain takes that one.
How long does swapping USDT Optimism for ADA take?
The clock starts with confirmations: as soon as Optimism 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.
Which network will ADA arrive in?
Cardano arrives in its own Cardano network — a plain ADA address is all you need.
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 Optimism to ADA rate do over the month?
Over the month, minus 22.28%: a low of 3.8661, a high of 5.1896, an average of 4.552 ADA per 1 USDT Optimism.
Can I swap back, ADA for USDT Optimism?
Yes, the reverse is open too: 1 ADA = 0.247792 USDT Optimism. The link to switch sits under the calculator.
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