Arbitrum (ARB) → Tether (USDT Optimism)
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 ARB → USDT Optimism
1 ARB = 0.201198 USDT Optimism
1 USDT Optimism = 4.9702 ARB
Rate as of Sep 30, 2026 11:35
- Orders from
- 489.402 ARB ≈ $98.55
- Payout network
- Optimism
- 24 hours
- +0.58%
Current maths: 0.201198 USDT Optimism for every ARB, and 4.9702 ARB per USDT Optimism in reverse. Over 24 hours ARB/USDT Optimism came in at plus 0.58%. Over the week, minus 19.36%.
The weekly range ran from 0.195561 to 0.250032 USDT Optimism, a spread of 27.85%. One order takes from 489.402 to 49,700,000 ARB. In dollars that is roughly $98.55.
The robot sends the payout in the Optimism network, so the address has to belong to that network — a transfer to another one will not arrive. Market capitalisation puts Arbitrum at No. 68 ($1.37 B) and Tether at No. 3 ($183.81 B). Over 90 days the daily moves of ARB and USDT correlate at 0 (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 ARB | From | Network fee | Speed |
|---|---|---|---|---|
| Ethereum (ERC20) | 0.201198 | 489.402 ARB | ≈ $0.014 | medium |
| TRON (TRC20) | 0.201198 | 489.402 ARB | ≈ $2.3 | fast |
| BNB Smart Chain (BEP20) | 0.201198 | 489.402 ARB | ≈ $0.0025 | fast |
| Solana | 0.201198 | 489.402 ARB | ≈ $0.00059 | fast |
| Arbitrum One | 0.201198 | 489.402 ARB | ≈ $0.0035 | fast |
| Avalanche C-Chain | 0.201198 | 489.402 ARB | ≈ $0.0036 | fast |
| NEAR | 0.201198 | 489.402 ARB | — | — |
| Optimism open | 0.201198 | 489.402 ARB | ≈ $0.00018 | fast |
ARB → USDT: all networks side by side Network charges for USDT
Rate and amounts for ARB → USDT Optimism
| ARB | USDT Optimism |
|---|---|
| 500 | 100.599 |
| 2,000 | 402.396 |
| 5,000 | 1,005.99 |
| 20,000 | 4,023.96 |
| 50,000 | 10,059.9 |
| 200,000 | 40,239.6 |
| USDT Optimism | ARB |
|---|---|
| 100 | 497.0229 |
| 500 | 2,485.11 |
| 2,000 | 9,940.46 |
| 5,000 | 24,851.14 |
| 20,000 | 99,404.57 |
| 100,000 | 497,022.86 |
How the ARB → USDT Optimism exchange runs
- Work out the amount in the calculator — orders start at 489.402 ARB.
- Give a USDT address on Optimism and a contact for the order.
- Send ARB on Arbitrum, 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.
Check this before sending ARB
- The address network is Optimism. Sending through another network almost always means losing the transfer.
- The transfer must not be smaller than 489.402 ARB.
- 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 ARB to USDT Optimism rate has moved
high 0.250032 USDT Optimismlow 0.195561 USDT Optimism
Sep 23, 2026 11:38Sep 30, 2026 11:38
high 0.234988 USDT Optimismlow 0.0842151 USDT Optimism
Aug 30, 2026 05:00Sep 29, 2026 05:00
high 0.234988 USDT Optimismlow 0.0727813 USDT Optimism
Jul 1, 2026 05:00Sep 29, 2026 05:00
high 0.45863 USDT Optimismlow 0.0727813 USDT Optimism
Oct 1, 2025 05:00Sep 29, 2026 05:00
- 24 hours
- +0.58%
- Week
- −19.36%
- Weekly high
- 0.250032 USDT Optimism
- Weekly low
- 0.195561 USDT Optimism
- Spread
- 27.85%
Market data from CoinGecko as of Sep 30, 2026 11:27. The exchange rate is worked out separately and differs from the market one. How these numbers are counted
The ARB/USDT Optimism spread by period
| Period | High | Low | Middle | Period result |
|---|---|---|---|---|
| 24 hours | 0.213825 | 0.199261 | 0.205473 | +0.58% |
| Week | 0.250032 | 0.195561 | 0.217772 | −19.36% |
| Month | 0.234988 | 0.0842151 | 0.16917 | +136.61% |
| Quarter | 0.234988 | 0.0727813 | 0.11298 | +174.78% |
Figures are in USDT Optimism per unit of the currency you send, taken from market data.
Daily ARB → USDT Optimism rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 29, 2026 | 0.207391 USDT Optimism | −8.32% |
| Sep 28, 2026 | 0.226219 USDT Optimism | +1.83% |
| Sep 27, 2026 | 0.222146 USDT Optimism | −2.01% |
| Sep 26, 2026 | 0.226709 USDT Optimism | +4.73% |
| Sep 25, 2026 | 0.216479 USDT Optimism | +0.24% |
| Sep 24, 2026 | 0.215953 USDT Optimism | −8.1% |
| Sep 23, 2026 | 0.234988 USDT Optimism | +4.08% |
Market data: ARB and USDT
Arbitrum ARB- Price
- $0.20137
- 24 hours
- +0.58%
- Week
- −16.64%
- Market cap
- $1.37 B
- 24-hour turnover
- $273.39 M
- Rank by cap
- #68
- In circulation
- 6.79 B ARB
- All-time high
- $2.39
Tether USDT- Price
- $0.999645
- 24 hours
- 0%
- Week
- −0.02%
- Market cap
- $183.81 B
- 24-hour turnover
- $57.58 B
- Rank by cap
- #3
- In circulation
- 183.87 B USDT
- All-time high
- $1.32
Source: CoinGecko, Sep 30, 2026 11:27.
Arbitrum and Tether: how they differ
| Arbitrum (ARB) | Tether (USDT) | |
|---|---|---|
| Ticker | ARB | USDT |
| Type | token | token |
| Launched | 2023 | 2014 |
| Built by | Offchain Labs | Tether Limited |
| Supply cap | 10 B ARB | no cap |
| In circulation | 6.79 B ARB | 183.87 B USDT |
| Market cap | $1.37 B | $183.81 B |
| Rank by cap | #68 | #3 |
| Network | — | Optimism |
| Fees are paid in | — | ETH |
Daily moves of ARB and USDT over the quarter link at 0 (they travel apart).
Why people take the ARB → USDT Optimism route
- Stepping out of the swingsARB moved +136.54% over the past month. USDT tracks the dollar, so after the swap the amount stops following ARB.
- It works both waysThe USDT Optimism → ARB direction is open as well — going back into ARB takes the same route and the same automation.
Common questions: ARB → USDT Optimism
What rate does ARB to USDT Optimism run at?
As of Sep 30, 2026 11:35 it is 1 ARB = 0.201198 USDT Optimism. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.201127.
What amounts does ARB → USDT Optimism accept?
From 489.402 to 49,700,000 ARB per order. The floor is roughly $98.55.
Why can I not swap less than 489.402 ARB?
The network fee and the handling do not depend on the amount. On a transfer below 489.402 ARB 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 ARB, and the blockchain takes that one.
How long does swapping ARB for USDT Optimism take?
The clock starts with confirmations: as soon as Arbitrum 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 Optimism arrive in?
The payout goes out on Optimism. 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 ARB to USDT Optimism rate do over the month?
Over the month, plus 136.61%: a low of 0.0842151, a high of 0.234988, an average of 0.16917 USDT Optimism per 1 ARB.
Can I swap back, USDT Optimism for ARB?
Yes, the reverse is open too: 1 USDT Optimism = 4.9701 ARB. The link to switch sits under the calculator.
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