Swap yearn.finance (YFI) 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 16:48
- Payout network
- Optimism
- 24 hours
- +3.24%
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 2,072.03 USDT Optimism per YFI, or 0.000482619 YFI per USDT Optimism. Market over 24 hours: YFI against USDT Optimism plus 3.24%. The week added minus 4.96%.
The weekly corridor ran from 2,000.45 to 2,225.05 USDT Optimism, a spread of 11.23%.
The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap yearn.finance sits 336th ($74.92 M) and Tether 3th ($183.29 B). Daily moves of YFI and USDT over 90 days line up at 0.04 (they travel apart).
Who takes the YFI → USDT Optimism route
- Sitting out the swingsYFI moved +6.91% over the past month. USDT tracks the dollar, so after the swap the value stops following YFI.
- A road both waysThe USDT Optimism → YFI direction is open too, so going back into YFI takes the same route.
YFI → USDT Optimism rate and amounts
1 YFI = 2,072.03 USDT Optimism
1 USDT Optimism = 0.000482619 YFI
Send YFI — receive USDT Optimism
| YFI | USDT Optimism |
|---|---|
| 0.005 | 10.3601 |
| 0.02 | 41.4406 |
| 0.1 | 207.2028 |
| 1 | 2,072.03 |
| 5 | 10,360.14 |
| 20 | 41,440.56 |
Need USDT Optimism — send this much YFI
| USDT Optimism | YFI |
|---|---|
| 20 | 0.00965238 |
| 100 | 0.0482619 |
| 500 | 0.24131 |
| 5,000 | 2.4131 |
| 20,000 | 9.6524 |
| 100,000 | 48.2619 |
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 YFI | From | Network fee | Speed |
|---|---|---|---|---|
| OMNI | 2,072.03 | — | — | — |
| Ethereum (ERC20) | 2,072.03 | 0.0943138 YFI | ≈ $0.058 | medium |
| TRON (TRC20) | 2,072.03 | 0.0943138 YFI | ≈ $2.3 | fast |
| BNB Smart Chain (BEP20) | 2,072.03 | 0.0943138 YFI | ≈ $0.0024 | fast |
| Solana | 2,072.03 | 0.0943138 YFI | ≈ $0.0005 | fast |
| Polygon | 2,072.03 | 0.0943138 YFI | ≈ $0.0018 | fast |
| Arbitrum One | 2,072.03 | 0.0943138 YFI | ≈ $0.0032 | fast |
| TON | 2,072.03 | 0.0943138 YFI | low | fast |
| Avalanche C-Chain | 2,072.03 | — | ≈ < $0.0001 | fast |
| NEAR | 2,072.03 | — | — | — |
| Optimism open now | 2,072.03 | — | ≈ $0.00018 | fast |
How the YFI → 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 YFI in yearn.finance 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 YFI
- 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 YFI to USDT Optimism rate has been
high 2,225.05 USDT Optimismlow 2,000.45 USDT Optimism
Sep 10, 2026 16:50Sep 17, 2026 16:50
high 2,343.61 USDT Optimismlow 1,947.81 USDT Optimism
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 2,699.56 USDT Optimismlow 1,624.74 USDT Optimism
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 5,563.59 USDT Optimismlow 1,624.74 USDT Optimism
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- +3.24%
- Week
- −4.96%
- Weekly high
- 2,225.05 USDT Optimism
- Weekly low
- 2,000.45 USDT Optimism
- Spread
- 11.23%
Market data from CoinGecko as of Sep 17, 2026 15:54; the exchange rate is calculated separately and differs. Where these numbers come from
How far YFI/USDT Optimism travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 2,072.1 | 2,000.45 | 2,045.01 | +3.24% |
| Week | 2,225.05 | 2,000.45 | 2,145.25 | −4.96% |
| Month | 2,343.61 | 1,947.81 | 2,214.06 | +6.92% |
| Quarter | 2,699.56 | 1,624.74 | 2,064.72 | +11.94% |
Figures are in USDT Optimism per unit sent, from market data.
Daily YFI → USDT Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 2,082.63 USDT Optimism | +1.89% |
| Sep 16, 2026 | 2,043.99 USDT Optimism | −5.53% |
| Sep 15, 2026 | 2,163.57 USDT Optimism | +0.06% |
| Sep 14, 2026 | 2,162.38 USDT Optimism | −1.66% |
| Sep 13, 2026 | 2,198.83 USDT Optimism | +0.74% |
| Sep 12, 2026 | 2,182.74 USDT Optimism | +2.77% |
| Sep 11, 2026 | 2,123.83 USDT Optimism | −3.27% |
The numbers on YFI and USDT
yearn.finance YFI- Price
- $2,076.56
- 24 hours
- +3.22%
- Week
- −4.9%
- Market cap
- $74.92 M
- 24-hour turnover
- $3.3 M
- Rank by cap
- #336
- In circulation
- 36.08 K YFI
- Record price
- $90,787.00
Tether USDT- Price
- $0.999175
- 24 hours
- −0.02%
- Week
- 0%
- Market cap
- $183.29 B
- 24-hour turnover
- $60.77 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
Source: CoinGecko, Sep 17, 2026 15:54.
yearn.finance against Tether
| yearn.finance (YFI) | Tether (USDT) | |
|---|---|---|
| Ticker | YFI | USDT |
| In circulation | 36.08 K YFI | 183.44 B USDT |
| Market cap | $74.92 M | $183.29 B |
| Rank by cap | #336 | #3 |
| Type | — | token |
| Network | — | Optimism |
| Fees are paid in | — | ETH |
| Launched | — | 2014 |
| Built by | — | Tether Limited |
| Supply cap | — | no cap |
Daily moves of YFI and USDT over 90 days line up at 0.04 — they travel apart.
Common questions: YFI → USDT Optimism
What rate does YFI to USDT Optimism run at?
As of Sep 17, 2026 16:48 it is 1 YFI = 2,072.03 USDT Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $2,070.32.
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 YFI, and that one goes to the blockchain, not to us.
How long does YFI to USDT Optimism take?
The clock starts with confirmations: the order goes into work once yearn.finance 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 YFI to USDT Optimism rate do this month?
The month came in at plus 6.92%. Low 1,947.81, high 2,343.61, middle 2,214.06 USDT Optimism per YFI.
Can I go back, USDT Optimism to YFI?
Yes, the reverse direction is open: 1 USDT Optimism = 0.000485048 YFI. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
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