# Gas Fee > The cost of getting your transaction included on the blockchain. Goes to the people who run the network. Canonical URL: https://fudfomo.co/glossary/gas-fee Source: What The Block! Dictionary v1.0 (last updated 2026-04-25), browsable at https://wtb.fudfomo.co. ## Definition A gas fee is what you actually pay to send a transaction. It rewards the validators or miners who include it in the next block. When the network is busy, fees go up because everyone is bidding for limited space. Layer 2 networks were built to keep these fees low by handling activity off the main chain. ## Related terms - [Gas](https://fudfomo.co/glossary/gas): The unit a blockchain uses to measure how much work a transaction takes. - [Layer 2](https://fudfomo.co/glossary/layer-2): A faster, cheaper network built on top of a layer 1 like Ethereum. Borrows the main chain's security. - [Validator](https://fudfomo.co/glossary/validator): A participant in a proof-of-stake network who proposes and confirms new blocks. Earns rewards and can be slashed. - [Ethereum](https://fudfomo.co/glossary/ethereum): A blockchain that lets developers build apps and issue tokens. Often called a programmable money platform. ## See the full catalogue What The Block! covers more than 2,000 plain-English crypto terms, delivered as embeddable hover-state tooltips for crypto exchanges. https://wtb.fudfomo.co