Ether.fi (ETHFI) → Tether (USDT Arbitrum)

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 ETHFI → USDT Arbitrum 1 ETHFI = 0.780892 USDT Arbitrum 1 USDT Arbitrum = 1.2806 ETHFI

Rate as of Oct 1, 2026 00:10

Orders from: 128.5204 ETHFI ≈ $100.40
Payout network: Arbitrum One
24 hours: +0.72%

You send

ETHFI

You get 1,561.78

USDT Arbitrum

Create the order

Rate: 1 ETHFI = 0.780892 USDT Arbitrum
From: 128.5204 ETHFI
Up to: 12,800,000 ETHFI

Preliminary figure: the final amount is locked in the order.

Current maths: 0.780892 USDT Arbitrum for every ETHFI, and 1.2806 ETHFI per USDT Arbitrum in reverse. Over 24 hours ETHFI/USDT Arbitrum came in at plus 0.72%. Over the week, plus 17.45%.

The weekly range ran from 0.648233 to 0.784148 USDT Arbitrum, a spread of 20.97%. One order takes from 128.5204 to 12,800,000 ETHFI. In dollars that is roughly $100.40.

The robot sends the payout in the Arbitrum One network, so the address has to belong to that network — a transfer to another one will not arrive. Market capitalisation puts Ether.fi at No. 90 ($754.23 M) and Tether at No. 3 ($183.82 B). Over 90 days the daily moves of ETHFI and USDT correlate at 0.01 (they travel apart).

Which network USDT arrives in

The same USDT goes out in several networks. Each has its own rate and its own floor, and the fee is charged by the network itself.

Network	Per 1 ETHFI	From	Network fee	Speed
Ethereum (ERC20)	0.780892	128.5204 ETHFI	≈ $0.048	medium
TRON (TRC20)	0.780892	128.5204 ETHFI	≈ $2.3	fast
BNB Smart Chain (BEP20)	0.780892	128.5204 ETHFI	≈ $0.0025	fast
Solana	0.780892	128.5204 ETHFI	≈ $0.00059	fast
Arbitrum One open	0.780892	128.5204 ETHFI	≈ $0.0036	fast
Avalanche C-Chain	0.780892	128.5204 ETHFI	≈ $0.0036	fast
NEAR	0.780892	128.5204 ETHFI	—	—
Optimism	0.780892	128.5204 ETHFI	≈ $0.00019	fast

ETHFI → USDT: all networks side by side Network charges for USDT

Rate and amounts for ETHFI → USDT Arbitrum

Send ETHFI — receive USDT ArbitrumNeed USDT Arbitrum — send this much ETHFI

ETHFI	USDT Arbitrum
200	156.1784
1,000	780.8922
2,000	1,561.78
10,000	7,808.92
20,000	15,617.84
100,000	78,089.22

USDT Arbitrum	ETHFI
200	256.1173
1,000	1,280.59
2,000	2,561.17
10,000	12,805.87
20,000	25,611.73
100,000	128,058.65

How the ETHFI → USDT Arbitrum exchange runs

Work out the amount in the calculator — orders start at 128.5204 ETHFI.
Give a USDT address on Arbitrum One and a contact for the order.
Send ETHFI on Ether.fi, exactly the amount the order shows.
Nothing else is needed from you: as soon as the network confirms the transfer, the robot sends Tether to your address. The order page shows the status.

Swap ETHFI for USDT Arbitrum

Check this before sending ETHFI

The address network is Arbitrum One. Sending through another network almost always means losing the transfer.
The transfer must not be smaller than 128.5204 ETHFI.
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 ETHFI to USDT Arbitrum rate has moved

WeekMonthQuarterYear

high 0.784148 USDT Arbitrumlow 0.648233 USDT Arbitrum

Sep 24, 2026 00:13Oct 1, 2026 00:13

high 0.766473 USDT Arbitrumlow 0.52265 USDT Arbitrum

Aug 31, 2026 05:00Sep 30, 2026 05:00

high 0.766473 USDT Arbitrumlow 0.320071 USDT Arbitrum

Jul 2, 2026 05:00Sep 30, 2026 05:00

high 1.8251 USDT Arbitrumlow 0.286526 USDT Arbitrum

Oct 1, 2025 05:00Sep 30, 2026 05:00

24 hours: +0.72%
Week: +17.45%
Weekly high: 0.784148 USDT Arbitrum
Weekly low: 0.648233 USDT Arbitrum
Spread: 20.97%

Market data from CoinGecko as of Sep 30, 2026 23:57. The exchange rate is worked out separately and differs from the market one. How these numbers are counted

The ETHFI/USDT Arbitrum spread by period

Period	High	Low	Middle	Period result
24 hours	0.784148	0.761936	0.771663	+0.72%
Week	0.784148	0.648233	0.712143	+17.45%
Month	0.766473	0.52265	0.646466	+46.65%
Quarter	0.766473	0.320071	0.511957	+139.47%

Figures are in USDT Arbitrum per unit of the currency you send, taken from market data.

Daily ETHFI → USDT Arbitrum rate

Day	Close	Against the day before
Sep 30, 2026	0.766473 USDT Arbitrum	+8.05%
Sep 29, 2026	0.709398 USDT Arbitrum	−1.48%
Sep 28, 2026	0.720037 USDT Arbitrum	−1.35%
Sep 27, 2026	0.729874 USDT Arbitrum	+1.4%
Sep 26, 2026	0.71979 USDT Arbitrum	+5.97%
Sep 25, 2026	0.679234 USDT Arbitrum	+4.73%
Sep 24, 2026	0.648544 USDT Arbitrum	−8.43%

Market data: ETHFI and USDT

Ether.fi ETHFI

Price: $0.781233
24 hours: +0.72%
Week: +20.82%
Market cap: $754.23 M
24-hour turnover: $55.13 M
Rank by cap: #90
In circulation: 965.35 M ETHFI
All-time high: $8.53

Tether USDT

Price: $0.999726
24 hours: 0%
Week: −0.01%
Market cap: $183.82 B
24-hour turnover: $63.04 B
Rank by cap: #3
In circulation: 183.87 B USDT
All-time high: $1.32

Source: CoinGecko, Sep 30, 2026 23:57.

Ether.fi and Tether: how they differ

	Ether.fi (ETHFI)	Tether (USDT)
Ticker	ETHFI	USDT
In circulation	965.35 M ETHFI	183.87 B USDT
Market cap	$754.23 M	$183.82 B
Rank by cap	#90	#3
Type	—	token
Network	—	Arbitrum One
Fees are paid in	—	ETH
Launched	—	2014
Built by	—	Tether Limited
Supply cap	—	no cap

Daily moves of ETHFI and USDT over the quarter link at 0.01 (they travel apart).

Why people take the ETHFI → USDT Arbitrum route

Stepping out of the swingsETHFI moved +46.61% over the past month. USDT tracks the dollar, so after the swap the amount stops following ETHFI.
It works both waysThe USDT Arbitrum → ETHFI direction is open as well — going back into ETHFI takes the same route and the same automation.

Common questions: ETHFI → USDT Arbitrum

What rate does ETHFI to USDT Arbitrum run at?

As of Oct 1, 2026 00:10 it is 1 ETHFI = 0.780892 USDT Arbitrum. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.780678.

What amounts does ETHFI → USDT Arbitrum accept?

From 128.5204 to 12,800,000 ETHFI per order. The floor is roughly $100.40.

Why can I not swap less than 128.5204 ETHFI?

The network fee and the handling do not depend on the amount. On a transfer below 128.5204 ETHFI 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 ETHFI, and the blockchain takes that one.

How long does swapping ETHFI for USDT Arbitrum take?

The clock starts with confirmations: as soon as Ether.fi 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 USDT Arbitrum arrive in?

The payout goes out on Arbitrum One. Check that the receiving wallet supports that network.

Which network is cheaper for receiving USDT?

Usually USDT BEP20, USDT SOL, USDT Arbitrum, USDT AVAX C, USDT Optimism works out cheaper. Still, the network is picked by what the recipient accepts, not by the fee.

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 ETHFI to USDT Arbitrum rate do over the month?

Over the month, plus 46.65%: a low of 0.52265, a high of 0.766473, an average of 0.646466 USDT Arbitrum per 1 ETHFI.

Can I swap back, USDT Arbitrum for ETHFI?

Yes, the reverse is open too: 1 USDT Arbitrum = 1.2806 ETHFI. The link to switch sits under the calculator.