# What is gas fee?

Gas fees are **payments made by users to compensate for the computing energy required to process and validate transactions on the Ethereum blockchain**. 

![](https://138288126-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FF2CRYJFHo6rjXoSRqSAS%2Fuploads%2FA1zXia3Su7RZuhtK95mR%2Fimage.png?alt=media\&token=6059dd70-b196-4f48-99a6-83fb2ff72d47)

For example, if you want to transfer 100 USDT from address A to address B, you need to have 100 USDT in your wallet and also a certain amount of native coins to initiate a transaction.

Ex. ETH on Ethereum/ MATIC on Polygon Network/ BNB on Binance Smart Chain