Swap Ether.fi (ETHFI) for Tether (USDT Polygon)
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 13:03
- Orders from
- 335.0645 ETHFI ≈ $202.38
- Payout network
- Polygon
- 24 hours
- +4%
You get
USDT Polygon
Start the order
USDT Polygon
The figure is indicative; the exact amount is locked in the order.
One ETHFI buys 0.604632 USDT Polygon right now; the other way round, 1 USDT Polygon is 1.6539 ETHFI. Market over 24 hours: ETHFI against USDT Polygon plus 4%. The week added minus 2.2%.
The weekly corridor ran from 0.579702 to 0.771277 USDT Polygon, a spread of 33.05%. A single order takes 335.0645 to 16,600,000 ETHFI. In dollars that is roughly $202.38.
The payout leaves in the Polygon network, so the receiving address has to belong to that network. By market cap Ether.fi sits 96th ($583.53 M) and Tether 3th ($183.28 B). Daily moves of ETHFI and USDT over 90 days line up at 0 (they travel apart).
Who takes the ETHFI → USDT Polygon route
- Sitting out the swingsETHFI moved +16.21% over the past month. USDT tracks the dollar, so after the swap the value stops following ETHFI.
- A road both waysThe USDT Polygon → ETHFI direction is open too, so going back into ETHFI takes the same route.
ETHFI → USDT Polygon rate and amounts
1 ETHFI = 0.604632 USDT Polygon
1 USDT Polygon = 1.6539 ETHFI
Send ETHFI — receive USDT Polygon
| ETHFI | USDT Polygon |
|---|---|
| 500 | 302.3158 |
| 1,000 | 604.6315 |
| 5,000 | 3,023.16 |
| 10,000 | 6,046.32 |
| 50,000 | 30,231.58 |
| 100,000 | 60,463.15 |
Need USDT Polygon — send this much ETHFI
| USDT Polygon | ETHFI |
|---|---|
| 500 | 826.9499 |
| 1,000 | 1,653.9 |
| 5,000 | 8,269.5 |
| 10,000 | 16,539 |
| 50,000 | 82,694.99 |
| 100,000 | 165,389.99 |
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 ETHFI | From | Network fee | Speed |
|---|---|---|---|---|
| OMNI | 0.604632 | — | — | — |
| Ethereum (ERC20) | 0.604632 | 335.0645 ETHFI | ≈ $0.026 | medium |
| TRON (TRC20) | 0.604632 | 335.0645 ETHFI | ≈ $2.3 | fast |
| BNB Smart Chain (BEP20) | 0.604632 | 335.0645 ETHFI | ≈ $0.0024 | fast |
| Solana | 0.604632 | 335.0645 ETHFI | ≈ $0.0005 | fast |
| Polygon open now | 0.604632 | 335.0645 ETHFI | ≈ $0.0017 | fast |
| Arbitrum One | 0.604632 | 335.0645 ETHFI | ≈ $0.0032 | fast |
| TON | 0.604632 | 335.0645 ETHFI | low | fast |
| Avalanche C-Chain | 0.604632 | — | ≈ < $0.0001 | fast |
| NEAR | 0.604632 | — | — | — |
| Optimism | 0.604632 | — | ≈ $0.00017 | fast |
How the ETHFI → USDT Polygon order runs
- Work out the amount in the calculator: orders start at 335.0645 ETHFI.
- Enter a USDT address in Polygon and a way to reach you.
- Send ETHFI in Ether.fi 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 ETHFI
- The address network is Polygon. Sending through another network usually means losing the transfer.
- The transfer must not be smaller than 335.0645 ETHFI.
- 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 ETHFI to USDT Polygon rate has been
high 0.771277 USDT Polygonlow 0.579702 USDT Polygon
Sep 10, 2026 13:06Sep 17, 2026 13:06
high 0.711383 USDT Polygonlow 0.485235 USDT Polygon
Aug 17, 2026 03:00Sep 16, 2026 03:00
high 0.711383 USDT Polygonlow 0.320071 USDT Polygon
Jun 18, 2026 03:00Sep 16, 2026 03:00
high 1.8251 USDT Polygonlow 0.286526 USDT Polygon
Sep 18, 2025 03:00Sep 16, 2026 03:00
- 24 hours
- +4%
- Week
- −2.2%
- Weekly high
- 0.771277 USDT Polygon
- Weekly low
- 0.579702 USDT Polygon
- Spread
- 33.05%
Market data from CoinGecko as of Sep 17, 2026 11:54; the exchange rate is calculated separately and differs. Where these numbers come from
How far ETHFI/USDT Polygon travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.605228 | 0.579702 | 0.590076 | +4% |
| Week | 0.771277 | 0.579702 | 0.650078 | −2.2% |
| Month | 0.711383 | 0.485235 | 0.580039 | +16.18% |
| Quarter | 0.711383 | 0.320071 | 0.45775 | +52.42% |
Figures are in USDT Polygon per unit sent, from market data.
Daily ETHFI → USDT Polygon rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 16, 2026 | 0.583429 USDT Polygon | −7.97% |
| Sep 15, 2026 | 0.633955 USDT Polygon | +1.57% |
| Sep 14, 2026 | 0.624127 USDT Polygon | −12.27% |
| Sep 13, 2026 | 0.711383 USDT Polygon | +5.44% |
| Sep 12, 2026 | 0.674708 USDT Polygon | +1.52% |
| Sep 11, 2026 | 0.664623 USDT Polygon | +7.45% |
| Sep 10, 2026 | 0.618516 USDT Polygon | +2.25% |
The numbers on ETHFI and USDT
Ether.fi ETHFI- Price
- $0.604007
- 24 hours
- +3.98%
- Week
- −4.4%
- Market cap
- $583.53 M
- 24-hour turnover
- $41.85 M
- Rank by cap
- #96
- In circulation
- 965.35 M ETHFI
- Record price
- $8.53
Tether USDT- Price
- $0.999122
- 24 hours
- −0.02%
- Week
- 0%
- Market cap
- $183.28 B
- 24-hour turnover
- $58.85 B
- Rank by cap
- #3
- In circulation
- 183.44 B USDT
- Record price
- $1.32
Source: CoinGecko, Sep 17, 2026 11:54.
Ether.fi against Tether
| Ether.fi (ETHFI) | Tether (USDT) | |
|---|---|---|
| Ticker | ETHFI | USDT |
| In circulation | 965.35 M ETHFI | 183.44 B USDT |
| Market cap | $583.53 M | $183.28 B |
| Rank by cap | #96 | #3 |
| Type | — | token |
| Network | — | Polygon |
| Fees are paid in | — | POL |
| Launched | — | 2014 |
| Built by | — | Tether Limited |
| Supply cap | — | no cap |
Daily moves of ETHFI and USDT over 90 days line up at 0 — they travel apart.
Common questions: ETHFI → USDT Polygon
What rate does ETHFI to USDT Polygon run at?
As of Sep 17, 2026 13:03 it is 1 ETHFI = 0.604632 USDT Polygon. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.604101.
What amounts does ETHFI → USDT Polygon accept?
From 335.0645 to 16,600,000 ETHFI per order. The lower limit is roughly $202.38.
Where does the 335.0645 ETHFI floor come from?
Network fees and order handling eat a small transfer alive — below 335.0645 ETHFI the swap stops making sense for either side.
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 ETHFI, and that one goes to the blockchain, not to us.
How long does ETHFI to USDT Polygon take?
The clock starts with confirmations: the order goes into work once Ether.fi confirms your transfer. After that it comes down to how busy the network is.
Which network will USDT Polygon arrive in?
The payout leaves in Polygon. 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 ETHFI to USDT Polygon rate do this month?
The month came in at plus 16.18%. Low 0.485235, high 0.711383, middle 0.580039 USDT Polygon per ETHFI.
Can I go back, USDT Polygon to ETHFI?
Yes, the reverse direction is open: 1 USDT Polygon = 1.6672 ETHFI. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
Send ETHFI, receive something else
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