Swap Synthetix (SNX) 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 17, 2026 19:43
- Payout network
- Optimism
- 24 hours
- +5.96%
You get
USDT Optimism
Start the order
USDT Optimism
The figure is indicative; the exact amount is locked in the order.
The direction runs at 0.210528 USDT Optimism per SNX, or 4.75 SNX per USDT Optimism. Market over 24 hours: SNX against USDT Optimism plus 5.96%. The week added minus 1.37%.
The weekly corridor ran from 0.195692 to 0.22054 USDT Optimism, a spread of 12.7%.
The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap Synthetix sits 243th ($120.82 M) and Tether 3th ($183.3 B). Daily moves of SNX and USDT over 90 days line up at -0.01 (they travel apart).
Who takes the SNX → USDT Optimism route
- Sitting out the swingsSNX moved +5.64% over the past month. USDT tracks the dollar, so after the swap the value stops following SNX.
- A road both waysThe USDT Optimism → SNX direction is open too, so going back into SNX takes the same route.
SNX → USDT Optimism rate and amounts
1 SNX = 0.210528 USDT Optimism
1 USDT Optimism = 4.75 SNX
Send SNX — receive USDT Optimism
| SNX | USDT Optimism |
|---|---|
| 50 | 10.5264 |
| 200 | 42.1057 |
| 1,000 | 210.5284 |
| 10,000 | 2,105.28 |
| 50,000 | 10,526.42 |
| 200,000 | 42,105.69 |
Need USDT Optimism — send this much SNX
| USDT Optimism | SNX |
|---|---|
| 20 | 94.999 |
| 100 | 474.9952 |
| 500 | 2,374.98 |
| 5,000 | 23,749.76 |
| 20,000 | 94,999.05 |
| 100,000 | 474,995.24 |
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 SNX | From | Network fee | Speed |
|---|---|---|---|---|
| OMNI | 0.210528 | — | — | — |
| Ethereum (ERC20) | 0.210528 | 1,020.41 SNX | ≈ $0.058 | medium |
| TRON (TRC20) | 0.210528 | 1,020.41 SNX | ≈ $2.3 | fast |
| BNB Smart Chain (BEP20) | 0.210528 | 1,020.41 SNX | ≈ $0.0024 | fast |
| Solana | 0.210528 | 1,020.41 SNX | ≈ $0.00051 | fast |
| Polygon | 0.210528 | 1,020.41 SNX | ≈ $0.0018 | fast |
| Arbitrum One | 0.210528 | 1,020.41 SNX | ≈ $0.0032 | fast |
| TON | 0.210528 | 1,020.41 SNX | low | fast |
| Avalanche C-Chain | 0.210528 | — | ≈ < $0.0001 | fast |
| NEAR | 0.210528 | — | — | — |
| Optimism open now | 0.210528 | — | ≈ $0.00018 | fast |
How the SNX → 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 SNX in Synthetix 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 SNX
- 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 SNX to USDT Optimism rate has been
high 0.22054 USDT Optimismlow 0.195692 USDT Optimism
Sep 10, 2026 19:47Sep 17, 2026 19:47
high 0.235075 USDT Optimismlow 0.191738 USDT Optimism
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 0.25091 USDT Optimismlow 0.191738 USDT Optimism
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 2.2893 USDT Optimismlow 0.191738 USDT Optimism
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- +5.96%
- Week
- −1.37%
- Weekly high
- 0.22054 USDT Optimism
- Weekly low
- 0.195692 USDT Optimism
- Spread
- 12.7%
Market data from CoinGecko as of Sep 17, 2026 18:54; the exchange rate is calculated separately and differs. Where these numbers come from
How far SNX/USDT Optimism travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.208059 | 0.195692 | 0.203755 | +5.96% |
| Week | 0.22054 | 0.195692 | 0.208432 | −1.37% |
| Month | 0.235075 | 0.191738 | 0.214146 | +5.65% |
| Quarter | 0.25091 | 0.191738 | 0.218215 | −15.39% |
Figures are in USDT Optimism per unit sent, from market data.
Daily SNX → USDT Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 0.207673 USDT Optimism | +4.51% |
| Sep 16, 2026 | 0.198719 USDT Optimism | −5.35% |
| Sep 15, 2026 | 0.209947 USDT Optimism | −0.98% |
| Sep 14, 2026 | 0.212023 USDT Optimism | −0.49% |
| Sep 13, 2026 | 0.213077 USDT Optimism | +3.18% |
| Sep 12, 2026 | 0.206514 USDT Optimism | +1.39% |
| Sep 11, 2026 | 0.203679 USDT Optimism | −4.75% |
The numbers on SNX and USDT
Synthetix SNX- Price
- $0.207952
- 24 hours
- +5.93%
- Week
- −1.4%
- Market cap
- $120.82 M
- 24-hour turnover
- $7.76 M
- Rank by cap
- #243
- In circulation
- 580.98 M SNX
- Record price
- $28.53
Tether USDT- Price
- $0.999248
- 24 hours
- −0.03%
- Week
- −0.1%
- Market cap
- $183.3 B
- 24-hour turnover
- $62.39 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
Source: CoinGecko, Sep 17, 2026 18:54.
Synthetix against Tether
| Synthetix (SNX) | Tether (USDT) | |
|---|---|---|
| Ticker | SNX | USDT |
| In circulation | 580.98 M SNX | 183.44 B USDT |
| Market cap | $120.82 M | $183.3 B |
| Rank by cap | #243 | #3 |
| Type | — | token |
| Network | — | Optimism |
| Fees are paid in | — | ETH |
| Launched | — | 2014 |
| Built by | — | Tether Limited |
| Supply cap | — | no cap |
Daily moves of SNX and USDT over 90 days line up at -0.01 — they travel apart.
Common questions: SNX → USDT Optimism
What rate does SNX to USDT Optimism run at?
As of Sep 17, 2026 19:43 it is 1 SNX = 0.210528 USDT Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.21037.
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 SNX, and that one goes to the blockchain, not to us.
How long does SNX to USDT Optimism take?
The clock starts with confirmations: the order goes into work once Synthetix confirms your transfer. After that it comes down to how busy the network is.
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 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 SNX to USDT Optimism rate do this month?
The month came in at plus 5.65%. Low 0.191738, high 0.235075, middle 0.214146 USDT Optimism per SNX.
Can I go back, USDT Optimism to SNX?
Yes, the reverse direction is open: 1 USDT Optimism = 4.7739 SNX. The link sits right under the calculator.
Worth reading
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