---
title: Gas
slug: gas
docTags: 
createdAt: 2022-07-20T13:38:39.000Z
---

"Gas" is the name for a special unit used in smart contract enabled blockchain networks. It measures how much "work" an action or set of actions takes to perform: for example, to calculate one Keccak256 cryptographic hash it will take 30 gas each time a hash is calculated, plus a cost of 6 more gas for every 256 bits of data being hashed. Every operation that can be performed by a transaction or contract on the platform costs a certain number of gas, with operations that require more computational resources costing more gas than operations that require few computational resources.

## Extra links[​](https://docs.polygon.technology/docs/home/blockchain-basics/gas#resources)

📗 [What is meant by the term "Gas"?](https://ethereum.stackexchange.com/questions/3/what-is-meant-by-the-term-gas)