Gas Limit
The maximum amount of gas a user is willing to spend on a transaction. If a transaction requires more gas than the limit, it fails and the gas is still charged. Simple transfers use about 21,000 gas; complex smart-contract interactions use much more.
Mike Starr
Founder, CryptoWizardTools ยท M.S. Organizational Management
Last reviewed: August 2026
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Related Terms
Gas Fees
Transaction fees paid to validators or miners for processing transactions on a blockchain network. On Ethereum, gas fees fluctuate based on network congestion.
Gas Price
The amount a user is willing to pay per unit of gas, usually quoted in gwei on Ethereum. Higher gas prices get transactions processed faster when the network is congested; lower prices can leave transactions pending.
Gwei
A unit of ether equal to 0.000000001 ETH (one billionth of an ETH). Gas prices on Ethereum are commonly quoted in gwei. A gas price of 20 gwei means 0.00000002 ETH per gas unit.