Unit prices now
ETH 0.1149 gweiBTC 1 sat/vBSOL 5,000 lamportsBNB 0.0715 gweiLTC 1 lit/vBXRP 10 dropsKAS 100 sompi/gramETC 8.189 gwei
read 09:47 UTC
Cheapest chain now

Optimism gas fee now

Optimism is a layer 2 on Ethereum. A transfer pays two parts, both in ETH: the L2 execution fee (gas used × the L2 gas price, usually tiny) and an L1 data fee for publishing the transaction's data on Ethereum. Since EIP-4844 that data goes into blobs, so the L1 part follows Ethereum's blob fee rather than its gas price.

The Optimism fee: no data yet. We show nothing rather than a guess.

Every transfer type on Optimism

TransferSlowStandardFastIn ETHCalculation

Transfer figures: no data yet. We show nothing rather than a guess.

Fee history on Optimism

Cost of a ETH transfer at standard speed, in USD at the time of each reading. Our own readings, every 5 minutes; nothing earlier exists.

Fee history for Optimism: no data yet. We show nothing rather than a guess.

Best time to send on Optimism →

Units on Optimism

1 ETH = 1,000,000,000 gwei

The unit gas prices are quoted in. 1 gwei = 1,000,000,000 wei.

Source: ethereum.org, Ether denominations

1 ETH = 1,000,000,000,000,000,000 wei

The smallest unit of ether.

Source: ethereum.org, Ether denominations

Questions and answers

Why is Optimism cheaper than Ethereum?

Thousands of Optimism transactions share one batch posted to Ethereum, so each pays only a small slice of the data cost, and execution happens on Optimism itself where gas is cheap.

What is the L1 data fee on Optimism?

The part of the fee that pays Ethereum for storing the transaction's data. It is read from Optimism's own fee oracle and included in the figure above; when the data fee is shown separately it is labelled.

Do I pay Optimism fees in ETH?

Yes. The fee on Optimism is paid in ETH bridged to Optimism, also for token transfers.