Swap Arbitrum (ARB) for Cosmos (ATOM)
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 21:23
- Orders from
- 1,258.65 ARB ≈ $210.66
- Payout network
- Cosmos Hub
- 24 hours
- +0.53%
The direction runs at 0.115782 ATOM per ARB, or 8.637 ARB per ATOM. Market over 24 hours: ARB against ATOM plus 0.53%. The week added plus 26.94%.
The weekly corridor ran from 0.0789577 to 0.112908 ATOM, a spread of 43%. A single order takes 1,258.65 to 59,700,000 ARB. In dollars that is roughly $210.66.
Exchange wallets usually ask for a Memo — copy it from the recipient side before you start. By market cap Arbitrum sits 71th ($1.13 B) and Cosmos 81th ($819.45 M). Daily moves of ARB and ATOM over 90 days line up at 0.49 (they travel alike).
Who takes the ARB → ATOM route
- Fuel for Cosmos HubWithout Cosmos nothing moves in Cosmos Hub — every transfer and every contract call is paid in it.
- Different basketsDaily moves of ARB and ATOM over 90 days line up at 0.49 (they travel alike) — the looser the link, the less a portfolio depends on one coin.
- A road both waysThe ATOM → ARB direction is open too, so going back into ARB takes the same route.
ARB → ATOM rate and amounts
1 ARB = 0.115782 ATOM
1 ATOM = 8.637 ARB
Send ARB — receive ATOM
| ARB | ATOM | ≈ USD |
|---|---|---|
| 2,000 | 231.5632 | $334.73 |
| 5,000 | 578.9079 | $836.83 |
| 20,000 | 2,315.63 | $3,347.32 |
| 50,000 | 5,789.08 | $8,368.30 |
| 200,000 | 23,156.32 | $33,473.20 |
| 500,000 | 57,890.79 | $83,683.00 |
Need ATOM — send this much ARB
| ATOM | ARB | ≈ USD |
|---|---|---|
| 200 | 1,727.39 | $289.11 |
| 500 | 4,318.48 | $722.77 |
| 2,000 | 17,273.91 | $2,891.06 |
| 5,000 | 43,184.76 | $7,227.66 |
| 20,000 | 172,739.05 | $28,910.64 |
| 50,000 | 431,847.63 | $72,276.61 |
How the ARB → ATOM order runs
- Work out the amount in the calculator: orders start at 1,258.65 ARB.
- Enter a ATOM address in Cosmos Hub and a way to reach you. Receiving to an exchange? Add the Memo, or the payment will hang.
- Send ARB in Arbitrum for exactly the amount stated in the order.
- Once the network confirms your transfer, Cosmos leaves for your address. The order page tracks every step.
Check this before sending ARB
- The address network is Cosmos Hub. Sending through another network usually means losing the transfer.
- If the receiving wallet asks for a Memo, put it in the order.
- The transfer must not be smaller than 1,258.65 ARB.
- 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 ARB to ATOM rate has been
high 0.112908 ATOMlow 0.0789577 ATOM
Sep 10, 2026 21:24Sep 17, 2026 21:24
high 0.118538 ATOMlow 0.0531031 ATOM
Aug 18, 2026 03:00Sep 17, 2026 03:00
high 0.118538 ATOMlow 0.04548 ATOM
Jun 19, 2026 03:00Sep 17, 2026 03:00
high 0.118538 ATOMlow 0.0360669 ATOM
Sep 18, 2025 03:00Sep 17, 2026 03:00
- 24 hours
- +0.53%
- Week
- +26.94%
- Weekly high
- 0.112908 ATOM
- Weekly low
- 0.0789577 ATOM
- Spread
- 43%
Market data from CoinGecko as of Sep 17, 2026 18:54; the exchange rate is calculated separately and differs. Where these numbers come from
How far ARB/ATOM travelled, by period
| Period | High | Low | Middle | Net move |
|---|---|---|---|---|
| 24 hours | 0.11063 | 0.10527 | 0.108334 | +0.53% |
| Week | 0.112908 | 0.0789577 | 0.091004 | +26.94% |
| Month | 0.118538 | 0.0531031 | 0.0769189 | +104.69% |
| Quarter | 0.118538 | 0.04548 | 0.062295 | +130.82% |
Figures are in ATOM per unit sent, from market data.
Daily ARB → ATOM rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 17, 2026 | 0.108699 ATOM | +8.55% |
| Sep 16, 2026 | 0.100139 ATOM | +18.59% |
| Sep 15, 2026 | 0.0844436 ATOM | +0.15% |
| Sep 14, 2026 | 0.084314 ATOM | −3.64% |
| Sep 13, 2026 | 0.0874946 ATOM | +2.85% |
| Sep 12, 2026 | 0.085068 ATOM | +8.83% |
| Sep 11, 2026 | 0.078163 ATOM | −2.93% |
The numbers on ARB and ATOM
Arbitrum ARB- Price
- $0.167366
- 24 hours
- +4.91%
- Week
- +9.6%
- Market cap
- $1.13 B
- 24-hour turnover
- $392.67 M
- Rank by cap
- #71
- In circulation
- 6.79 B ARB
- Record price
- $2.39
Cosmos ATOM- Price
- $1.54
- 24 hours
- +4.35%
- Week
- −14.4%
- Market cap
- $819.45 M
- 24-hour turnover
- $40.56 M
- Rank by cap
- #81
- In circulation
- 531.22 M ATOM
- Record price
- $43.84
Source: CoinGecko, Sep 17, 2026 18:54.
Arbitrum against Cosmos
| Arbitrum (ARB) | Cosmos (ATOM) | |
|---|---|---|
| Ticker | ARB | ATOM |
| Type | token | coin of its own network |
| Launched | 2023 | 2019 |
| Built by | Offchain Labs | Jae Kwon, Ethan Buchman |
| Supply cap | 10 B ARB | no cap |
| In circulation | 6.79 B ARB | 531.22 M ATOM |
| Market cap | $1.13 B | $819.45 M |
| Rank by cap | #71 | #81 |
| Consensus | — | Proof of Stake (CometBFT) |
| Block | — | ~6 sec |
| Privacy | — | transfers are public |
Daily moves of ARB and ATOM over 90 days line up at 0.49 — they travel alike.
Common questions: ARB → ATOM
What rate does ARB to ATOM run at?
As of Sep 17, 2026 21:23 it is 1 ARB = 0.115782 ATOM. The figure recalculates on its own, and the calculator always shows the fresh one. In dollars that is around $0.178304.
What amounts does ARB → ATOM accept?
From 1,258.65 to 59,700,000 ARB per order. The lower limit is roughly $210.66.
Where does the 1,258.65 ARB floor come from?
Network fees and order handling eat a small transfer alive — below 1,258.65 ARB 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 ARB, and that one goes to the blockchain, not to us.
How long does ARB to ATOM take?
The clock starts with confirmations: the order goes into work once Arbitrum confirms your transfer. After that it comes down to how busy the network is.
Which network will ATOM arrive in?
Cosmos leaves in its own Cosmos Hub network — a plain ATOM address is all you need. Some exchanges and wallets also need a Memo.
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 ARB to ATOM rate do this month?
The month came in at plus 104.69%. Low 0.0531031, high 0.118538, middle 0.0769189 ATOM per ARB.
Can I go back, ATOM to ARB?
Yes, the reverse direction is open: 1 ATOM = 8.6804 ARB. The link sits right under the calculator.
Worth reading
Where else this can go
The other way round
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