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 Nov 2, 2026 00:29

Payout network: Optimism
24 hours: +3.94%

You send

YFI

You get 1,981.17

USDT Optimism

Start the order

Rate: 1 YFI = 1,981.17 USDT Optimism
Up to: 5,040 YFI

The figure is indicative; the exact amount is locked in the order.

The direction runs at 1,981.17 USDT Optimism per YFI, or 0.000504752 YFI per USDT Optimism. Market over 24 hours: YFI against USDT Optimism plus 3.94%. The week added minus 6.37%.

The weekly corridor ran from 1,767.2 to 2,143.04 USDT Optimism, a spread of 21.27%.

The payout leaves in the Optimism network, so the receiving address has to belong to that network. By market cap yearn.finance sits 345th ($71.19 M) and Tether 3th ($179.97 B). Daily moves of YFI and USDT over 90 days line up at 0.14 (they travel apart).

Who takes the YFI → USDT Optimism route

Sitting out the swingsYFI moved −19.12% 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 = 1,981.17 USDT Optimism

1 USDT Optimism = 0.000504752 YFI

Send YFI — receive USDT Optimism

YFI	USDT Optimism
0.01	19.8117
0.05	99.0585
0.2	396.2341
2	3,962.34
10	19,811.7
50	99,058.51

Need USDT Optimism — send this much YFI

USDT Optimism	YFI
20	0.010095
100	0.0504752
500	0.252376
5,000	2.5238
20,000	10.095
100,000	50.4752

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	1,981.17	—	—	—
Ethereum (ERC20)	1,981.17	0.0943138 YFI	≈ $0.0067	medium
TRON (TRC20)	1,981.17	0.0943138 YFI	≈ $2.1	fast
BNB Smart Chain (BEP20)	1,981.17	0.0943138 YFI	≈ $0.0023	fast
Solana	1,981.17	0.0943138 YFI	≈ $0.00047	fast
Polygon	1,981.17	0.0943138 YFI	≈ $0.0016	fast
Arbitrum One	1,981.17	0.0943138 YFI	≈ $0.0029	fast
TON	1,981.17	0.0943138 YFI	low	fast
Avalanche C-Chain	1,981.17	—	≈ $0.0014	fast
NEAR	1,981.17	—	—	—
Optimism open now	1,981.17	—	≈ $0.00015	fast

YFI → USDT: compare all networks USDT network fees

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.

Swap YFI for USDT Optimism

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

WeekMonthQuarterYear

high 2,143.04 USDT Optimismlow 1,767.2 USDT Optimism

Oct 26, 2026 00:32Nov 2, 2026 00:32

high 2,636.22 USDT Optimismlow 1,912.35 USDT Optimism

Oct 2, 2026 03:00Nov 1, 2026 03:00

high 2,636.22 USDT Optimismlow 1,912.35 USDT Optimism

Aug 3, 2026 03:00Nov 1, 2026 03:00

high 5,175.08 USDT Optimismlow 1,624.74 USDT Optimism

Nov 2, 2025 03:00Nov 1, 2026 03:00

24 hours: +3.94%
Week: −6.37%
Weekly high: 2,143.04 USDT Optimism
Weekly low: 1,767.2 USDT Optimism
Spread: 21.27%

Market data from CoinGecko as of Nov 1, 2026 23:54; 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	2,042.04	1,908.83	1,984.2	+3.94%
Week	2,143.04	1,767.2	2,020	−6.37%
Month	2,636.22	1,912.35	2,282.11	−19.09%
Quarter	2,636.22	1,912.35	2,225.8	−4.95%

Figures are in USDT Optimism per unit sent, from market data.

Daily YFI → USDT Optimism rate

Day	Close	Against the day before
Nov 1, 2026	2,000.99 USDT Optimism	+4.64%
Oct 31, 2026	1,912.35 USDT Optimism	−1.12%
Oct 30, 2026	1,933.93 USDT Optimism	−8.04%
Oct 29, 2026	2,102.96 USDT Optimism	−0.65%
Oct 28, 2026	2,116.76 USDT Optimism	−0.28%
Oct 27, 2026	2,122.69 USDT Optimism	+0.42%
Oct 26, 2026	2,113.76 USDT Optimism	−2.59%

Daily RubyCash rate: YFI → USDT Optimism

Date	RubyCash rate	Market rate
Nov 1, 2026	1,996.87 USDT Optimism	1,985.8
Oct 31, 2026	1,907.89 USDT Optimism	1,922.6
Oct 30, 2026	1,905.56 USDT Optimism	1,856.17
Oct 29, 2026	1,951.86 USDT Optimism	1,961.04
Oct 28, 2026	2,097.32 USDT Optimism	2,100.01
Oct 27, 2026	2,122.05 USDT Optimism	2,110.71
Oct 26, 2026	2,117.01 USDT Optimism	2,117.89
Oct 25, 2026	2,123.25 USDT Optimism	2,114.05
Oct 24, 2026	2,164.22 USDT Optimism	2,153.09
Oct 22, 2026	2,147.57 USDT Optimism	2,143.9
Oct 21, 2026	2,255.22 USDT Optimism	2,268.58
Oct 20, 2026	2,254.03 USDT Optimism	2,240.84
Oct 19, 2026	2,220.32 USDT Optimism	2,199.08
Oct 18, 2026	2,221.07 USDT Optimism	2,202.79

Our own rate is written down every hour; the table keeps the last entry of each day. The market column is the ratio of the same two coins on CoinGecko at that moment. Where these numbers come from

The numbers on YFI and USDT

yearn.finance YFI

Price: $1,984.13
24 hours: +3.9%
Week: −6.64%
Market cap: $71.19 M
24-hour turnover: $6.36 M
Rank by cap: #345
In circulation: 35.88 K YFI
Record price: $90,787.00

Tether USDT

Price: $0.99916
24 hours: −0.04%
Week: +0.01%
Market cap: $179.97 B
24-hour turnover: $25.81 B
Rank by cap: #3
In circulation: 180.12 B USDT
Record price: $1.32

Source: CoinGecko, Nov 1, 2026 23:54.

yearn.finance against Tether

	yearn.finance (YFI)	Tether (USDT)
Ticker	YFI	USDT
In circulation	35.88 K YFI	180.12 B USDT
Market cap	$71.19 M	$179.97 B
Rank by cap	#345	#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 0.14 — they travel apart.

Common questions: YFI → USDT Optimism

What rate does YFI to USDT Optimism run at?

As of Nov 2, 2026 00:29 it is 1 YFI = 1,981.17 USDT Optimism. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $1,979.51.

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 minus 19.09%. Low 1,912.35, high 2,636.22, middle 2,282.11 USDT Optimism per YFI.

Can I go back, USDT Optimism to YFI?

Yes, the reverse direction is open: 1 USDT Optimism = 0.000507292 YFI. The link sits right under the calculator.