Cosmos (ATOM) → Arbitrum (ARB)
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 ATOM → ARB
1 ATOM = 8.5384 ARB
1 ARB = 0.117118 ATOM
Rate as of Sep 30, 2026 20:45
- Orders from
- 58.2851 ATOM ≈ $99.67
- Payout network
- Arbitrum
- 24 hours
- +0.12%
Right now 1 ATOM gets you 8.5384 ARB; the other way round, 1 ARB is 0.117118 ATOM. Over 24 hours ATOM/ARB came in at plus 0.12%. Over the week, plus 8.66%.
The weekly range ran from 7.709 to 8.721 ARB, a spread of 13.13%. One order takes from 58.2851 to 5,850,000 ATOM. In dollars that is roughly $99.67.
Market capitalisation puts Cosmos at No. 83 ($914.75 M) and Arbitrum at No. 68 ($1.37 B). Over 90 days the daily moves of ATOM and ARB correlate at 0.5 (they travel alike).
Rate and amounts for ATOM → ARB
| ATOM | ARB | ≈ USD |
|---|---|---|
| 100 | 853.8414 | $171.00 |
| 500 | 4,269.21 | $855.00 |
| 1,000 | 8,538.41 | $1,710.00 |
| 5,000 | 42,692.07 | $8,550.00 |
| 10,000 | 85,384.14 | $17,100.00 |
| 50,000 | 426,920.71 | $85,500.00 |
| ARB | ATOM | ≈ USD |
|---|---|---|
| 500 | 58.5589 | $100.14 |
| 2,000 | 234.2355 | $400.54 |
| 5,000 | 585.5888 | $1,001.36 |
| 20,000 | 2,342.36 | $4,005.43 |
| 50,000 | 5,855.89 | $10,013.57 |
| 200,000 | 23,423.55 | $40,054.28 |
How the ATOM → ARB exchange runs
- Work out the amount in the calculator — orders start at 58.2851 ATOM.
- Give a ARB address on Arbitrum and a contact for the order.
- Send ATOM on Cosmos Hub, exactly the amount the order shows.
- Nothing else is needed from you: as soon as the network confirms the transfer, the robot sends Arbitrum to your address. The order page shows the status.
Check this before sending ATOM
- The address network is Arbitrum. Sending through another network almost always means losing the transfer.
- The transfer must not be smaller than 58.2851 ATOM.
- 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 ATOM to ARB rate has moved
high 8.721 ARBlow 7.709 ARB
Sep 23, 2026 20:47Sep 30, 2026 20:47
high 17.3002 ARBlow 7.7717 ARB
Aug 31, 2026 05:00Sep 30, 2026 05:00
high 20.4348 ARBlow 7.7717 ARB
Jul 2, 2026 05:00Sep 30, 2026 05:00
high 27.7263 ARBlow 7.7717 ARB
Oct 1, 2025 05:00Sep 30, 2026 05:00
- 24 hours
- +0.12%
- Week
- +8.66%
- Weekly high
- 8.721 ARB
- Weekly low
- 7.709 ARB
- Spread
- 13.13%
Market data from CoinGecko as of Sep 30, 2026 20:27. The exchange rate is worked out separately and differs from the market one. How these numbers are counted
The ATOM/ARB spread by period
| Period | High | Low | Middle | Period result |
|---|---|---|---|---|
| 24 hours | 8.4925 | 8.3492 | 8.4204 | +0.12% |
| Week | 8.721 | 7.709 | 8.2418 | +8.66% |
| Month | 17.3002 | 7.7717 | 10.123 | −51.09% |
| Quarter | 20.4348 | 7.7717 | 14.9878 | −58.16% |
Figures are in ARB per unit of the currency you send, taken from market data.
Daily ATOM → ARB rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 30, 2026 | 8.4618 ARB | −1.48% |
| Sep 29, 2026 | 8.5885 ARB | +3.13% |
| Sep 28, 2026 | 8.3276 ARB | −0.83% |
| Sep 27, 2026 | 8.3973 ARB | +6.29% |
| Sep 26, 2026 | 7.9003 ARB | −4.11% |
| Sep 25, 2026 | 8.2387 ARB | +4.91% |
| Sep 24, 2026 | 7.8534 ARB | +0.07% |
Market data: ATOM and ARB
Cosmos ATOM- Price
- $1.71
- 24 hours
- −1.55%
- Week
- −4.18%
- Market cap
- $914.75 M
- 24-hour turnover
- $54.01 M
- Rank by cap
- #83
- In circulation
- 533.44 M ATOM
- All-time high
- $43.84
Arbitrum ARB- Price
- $0.202019
- 24 hours
- −1.67%
- Week
- −11.74%
- Market cap
- $1.37 B
- 24-hour turnover
- $245.74 M
- Rank by cap
- #68
- In circulation
- 6.79 B ARB
- All-time high
- $2.39
Source: CoinGecko, Sep 30, 2026 20:27.
Cosmos and Arbitrum: how they differ
| Cosmos (ATOM) | Arbitrum (ARB) | |
|---|---|---|
| Ticker | ATOM | ARB |
| Type | coin of its own network | token |
| Launched | 2019 | 2023 |
| Built by | Jae Kwon, Ethan Buchman | Offchain Labs |
| Consensus | Proof of Stake (CometBFT) | — |
| Block | ~6 sec | — |
| Supply cap | no cap | 10 B ARB |
| Privacy | transfers are public | — |
| In circulation | 533.44 M ATOM | 6.79 B ARB |
| Market cap | $914.75 M | $1.37 B |
| Rank by cap | #83 | #68 |
Daily moves of ATOM and ARB over the quarter link at 0.5 (they travel alike).
Why people take the ATOM → ARB route
- A DeFi protocol tokenArbitrum belongs to decentralised finance: holders govern the protocol with it and pay for operations inside it.
- Different basketsDaily moves of ATOM and ARB over 90 days link at 0.5 (they travel alike) — the weaker the link, the less a portfolio rests on one coin.
- It works both waysThe ARB → ATOM direction is open as well — going back into ATOM takes the same route and the same automation.
Common questions: ATOM → ARB
What rate does ATOM to ARB run at?
As of Sep 30, 2026 20:45 it is 1 ATOM = 8.5384 ARB. The figure updates on its own, and the calculator always shows the current one. On the market that is around $1.72.
What amounts does ATOM → ARB accept?
From 58.2851 to 5,850,000 ATOM per order. The floor is roughly $99.67.
Why can I not swap less than 58.2851 ATOM?
The network fee and the handling do not depend on the amount. On a transfer below 58.2851 ATOM 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 ATOM, and the blockchain takes that one.
How long does swapping ATOM for ARB take?
The clock starts with confirmations: as soon as Cosmos Hub 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. A block in Cosmos Hub closes in about 6 sec.
Which network will ARB arrive in?
Arbitrum arrives in its own Arbitrum network — a plain ARB address is all you need.
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 ATOM to ARB rate do over the month?
Over the month, minus 51.09%: a low of 7.7717, a high of 17.3002, an average of 10.123 ARB per 1 ATOM.
Can I swap back, ARB for ATOM?
Yes, the reverse is open too: 1 ARB = 0.117115 ATOM. The link to switch sits under the calculator.
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