Swap Cardano (ADA) for Tether (USDT Optimism)
The calculator does the maths at the live rate, the page lists the limits and the timing. Your rate is locked the moment the order is created.
Rate as of Sep 18, 2026 02:48
- Payout network
- Optimism
- 24 hours
- +3.77%
You get
USDT Optimism
Start the order
USDT Optimism
The figure is indicative; the exact amount is locked in the order.
Today ADA goes for 0.204115 USDT Optimism, and USDT Optimism goes for 4.8992 ADA. Market over 24 hours: ADA against USDT Optimism plus 3.77%. The week added minus 2.93%.
The weekly corridor ran from 0.191294 to 0.214309 USDT Optimism, a spread of 12.03%.
The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap Cardano sits 19th ($7.5 B) and Tether 3th ($183.32 B). Daily moves of ADA and USDT over 90 days line up at 0.05 (they travel apart).
Who takes the ADA → USDT Optimism route
- Sitting out the swingsADA moved +12.64% over the past month. USDT tracks the dollar, so after the swap the value stops following ADA.
- A road both waysThe USDT Optimism → ADA direction is open too, so going back into ADA takes the same route.
ADA → USDT Optimism rate and amounts
1 ADA = 0.204115 USDT Optimism
1 USDT Optimism = 4.8992 ADA
Send ADA — receive USDT Optimism
| ADA | USDT Optimism |
|---|---|
| 100 | 20.4115 |
| 500 | 102.0573 |
| 2,000 | 408.2293 |
| 20,000 | 4,082.29 |
| 100,000 | 20,411.47 |
| 500,000 | 102,057.33 |
Need USDT Optimism — send this much ADA
| USDT Optimism | ADA |
|---|---|
| 20 | 97.9841 |
| 100 | 489.9207 |
| 500 | 2,449.6 |
| 5,000 | 24,496.04 |
| 20,000 | 97,984.14 |
| 100,000 | 489,920.7 |
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 ADA | From | Network fee | Speed |
|---|---|---|---|---|
| TRON (TRC20) | 0.204115 | 405.2006 ADA | ≈ $2.3 | fast |
| Solana | 0.204115 | 405.2006 ADA | ≈ $0.0005 | fast |
| Polygon | 0.204115 | 405.2006 ADA | ≈ $0.0018 | fast |
| Arbitrum One | 0.204115 | 405.2006 ADA | ≈ $0.0032 | fast |
| TON | 0.204115 | 405.2006 ADA | low | fast |
| Ethereum (ERC20) | 0.204115 | 405.2006 ADA | ≈ $0.0088 | medium |
| OMNI | 0.204115 | — | — | — |
| BNB Smart Chain (BEP20) | 0.204115 | 984.3925 ADA | ≈ $0.0024 | fast |
| Avalanche C-Chain | 0.204115 | — | ≈ < $0.0001 | fast |
| NEAR | 0.204115 | — | — | — |
| Optimism open now | 0.204115 | — | ≈ $0.00016 | fast |
How the ADA → USDT Optimism order runs
- Work out the amount in the calculator and press the exchange button.
- Enter a USDT address in Optimism and a way to reach you.
- Send ADA in Cardano 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.
Check this before sending ADA
- The address network is Optimism. Sending through another network usually means losing the transfer.
- Copy the address whole, then compare the first and last characters after pasting.
- Coins go through an AML check: a flagged transfer can be held until the check is finished.
Where the ADA to USDT Optimism rate has been
high 0.214309 USDT Optimismlow 0.191294 USDT Optimism
Sep 11, 2026 02:51Sep 18, 2026 02:51
high 0.229145 USDT Optimismlow 0.174256 USDT Optimism
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 0.229145 USDT Optimismlow 0.143821 USDT Optimism
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 0.925375 USDT Optimismlow 0.143821 USDT Optimism
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- +3.77%
- Week
- −2.93%
- Weekly high
- 0.214309 USDT Optimism
- Weekly low
- 0.191294 USDT Optimism
- Spread
- 12.03%
Market data from CoinGecko as of Sep 18, 2026 01:24; the exchange rate is calculated separately and differs. Where these numbers come from
How far ADA/USDT Optimism travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.203018 | 0.194895 | 0.198895 | +3.77% |
| Week | 0.214309 | 0.191294 | 0.204017 | −2.93% |
| Month | 0.229145 | 0.174256 | 0.206937 | +12.65% |
| Quarter | 0.229145 | 0.143821 | 0.182582 | +19.93% |
Figures are in USDT Optimism per unit sent, from market data.
Daily ADA → USDT Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 0.1963 USDT Optimism | +0.43% |
| Sep 16, 2026 | 0.195465 USDT Optimism | −6.28% |
| Sep 15, 2026 | 0.208557 USDT Optimism | +2.38% |
| Sep 14, 2026 | 0.203711 USDT Optimism | −1.76% |
| Sep 13, 2026 | 0.207363 USDT Optimism | +0.52% |
| Sep 12, 2026 | 0.20628 USDT Optimism | +0.79% |
| Sep 11, 2026 | 0.204656 USDT Optimism | −3.44% |
The numbers on ADA and USDT
Cardano ADA- Price
- $0.199902
- 24 hours
- +3.77%
- Week
- −4%
- Market cap
- $7.5 B
- 24-hour turnover
- $365.79 M
- Rank by cap
- #19
- In circulation
- 37.52 B ADA
- Record price
- $3.09
Tether USDT- Price
- $0.999311
- 24 hours
- −0.01%
- Week
- 0%
- Market cap
- $183.32 B
- 24-hour turnover
- $50.47 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
Source: CoinGecko, Sep 18, 2026 01:24.
Cardano against Tether
| Cardano (ADA) | Tether (USDT) | |
|---|---|---|
| Ticker | ADA | USDT |
| Type | coin of its own network | token |
| Launched | 2017 | 2014 |
| Built by | Charles Hoskinson | Tether Limited |
| Consensus | Proof of Stake (Ouroboros) | — |
| Block | ~20 sec | — |
| Supply cap | 45 B ADA | no cap |
| Privacy | transfers are public | — |
| In circulation | 37.52 B ADA | 183.44 B USDT |
| Market cap | $7.5 B | $183.32 B |
| Rank by cap | #19 | #3 |
| Network | — | Optimism |
| Fees are paid in | — | ETH |
Daily moves of ADA and USDT over 90 days line up at 0.05 — they travel apart.
Common questions: ADA → USDT Optimism
What rate does ADA to USDT Optimism run at?
As of Sep 18, 2026 02:48 it is 1 ADA = 0.204115 USDT Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.203974.
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 ADA, and that one goes to the blockchain, not to us.
How long does ADA to USDT Optimism take?
The clock starts with confirmations: the order goes into work once Cardano confirms your transfer. After that it comes down to how busy the network is. A block in Cardano closes in about 20 sec.
Which network will USDT Optimism arrive in?
The payout leaves in Optimism. Make sure the receiving wallet works with that network.
Where is receiving USDT cheaper?
The cheapest is usually USDT SOL, USDT Polygon, USDT Arbitrum, USDT TON, USDT BEP20, 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 ADA to USDT Optimism rate do this month?
The month came in at plus 12.65%. Low 0.174256, high 0.229145, middle 0.206937 USDT Optimism per ADA.
Can I go back, USDT Optimism to ADA?
Yes, the reverse direction is open: 1 USDT Optimism = 4.9387 ADA. The link sits right under the calculator.
Worth reading
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