Arbitrum One Gas Price Today
LiveArbitrum One (chainId 42161) is an L2 EVM chain tracked live by EVMgastracker.
Cost per action on Arbitrum One
Estimates: gas units × live gas price × ETH price. Real cost depends on the exact contract called.
Best time to transact on Arbitrum One
Not enough history yet — the 7-day heatmap fills in over the next day or two.
Arbitrum One 7-day gas history
History is still accumulating for Arbitrum One.
Why is gas moving on Arbitrum One?
Analyzing the latest blocks…
Arbitrum One network facts
| Chain ID | 42161 |
| Type | L2 — Optimistic Rollup |
| Gas token | ETH |
| Settles on | Ethereum |
| Explorer | arbiscan.io |
| RPC list | chainlist.org/chain/42161 |
How to pay less gas on Arbitrum One
- Gas on Arbitrum One is usually cheaper at night and on weekends — the 7-day heatmap above fills in as data accumulates.
- Arbitrum One is currently live vs its 7-day median — a reasonable time to transact.
- If your transactions hang or get bad estimates, switch to a healthier RPC via chainlist.org/chain/42161. It won't change the gas price (the network sets that) but prevents stuck transactions.
- Arbitrum One is a Layer 2, so fees are already far below Ethereum mainnet — batch actions where you can to avoid paying the same overhead twice.
Arbitrum One gas — FAQ
What gas token does Arbitrum One use?
Arbitrum One pays gas in ETH. Fees on this page are converted to USD using the live ETH price, so you can compare Arbitrum One with the other 55 EVM chains on equal terms.
How much does a swap cost on Arbitrum One right now?
A typical DEX swap on Arbitrum One uses about 150,000 gas; the live USD cost is shown at the top of this page and refreshes every few minutes.
Why are gas fees changing on Arbitrum One?
Gas rises when demand for block space exceeds supply — NFT mints, airdrop claims, token trading or general congestion. Arbitrum One's status is compared against its own 7-day median, so "busy" means costlier than usual, not just a raw number.
Is Arbitrum One a Layer 2?
Yes. Arbitrum One is a Layer 2 (Optimistic Rollup), settling on Ethereum. L2s batch transactions off-chain, which is why fees are usually far lower than on Ethereum mainnet.
How do I change my RPC for Arbitrum One?
Open chainlist.org, search Arbitrum One (chainId 42161) and add a healthier RPC endpoint to your wallet. Switching RPC does NOT change the gas price (the network sets that), but a fast, non-overloaded endpoint gives better estimates and prevents stuck transactions.
When is the cheapest time to transact on Arbitrum One?
Gas is often lower at night and on weekends, but every chain has its own rhythm. EVMgastracker keeps 7 days of on-chain history per chain to surface the cheapest windows — see the "Best time" heatmap on the dashboard.
Compare Arbitrum One with other chains
Track Arbitrum One gas in real time
See all 56 EVM chains side by side, get the cheapest time to transact, and enable a low-gas alert.
Open the dashboard