When you enter a transaction to the Ethereum blockchain, you specify a “gas limit.” Gas limit refers to the maximum amount of gas you're willing to consume on a transaction. Complicated transactions involving smart contracts require more computational work, so they require a higher gas limit. The standard transaction fee on Ethereum requires a gas limit of 21,000 gwei. GWEI to USD Price Today There are many applications that refund the gas fee in a bid to lure users. Try to find such apps and use them to your good. For example, if you are a derivative trader, you can use Injective exchange. This exchange refunds all forms of fee that is required to onboard one to the Injective blockchain. Balancer is another example of a dApp that refunds gas fee in the form of BAL tokens.