How to customize gas settings | MetaMask Help Center 🦊♥️ (2024)

FAQs

How to change gas settings in MetaMask? ›

Click on the fee, and a menu will appear with a slider, and another option to click on 'Advanced Options'. The slider lets you pick between three options that describe how much gas you want to pay: 'Low' involves paying less for gas, and most likely waiting longer for your transaction to complete.

“Aggressive“ (previously “High”): is much higher compared to market prices. It allows you to set a really high max fee and priority fee to increase the likelihood of your transaction being successful if you're expecting to participate in a gas war.

Aggressive: By selecting this option, you can be more assertive with your transaction and have it completed as soon as possible by paying a higher fee. If you prefer more control over the gas parameters, you can click "Advanced" to customize them directly.

The gas limit is known as the maximum amount of computational power a user is willing to spend on a transaction or execution of a smart contract. It prevents excessive use of network resources by setting a cap on the work that can be done.

This means that all the gas units up to the limit you set were used up before the transaction could be fully processed. To avoid another "out of gas" error, you will need to increase the gas limit of your next transaction.

On MetaMask Extension, you can adjust your privacy settings by clicking the three dots in the upper right corner of your MetaMask interface, and clicking 'Settings'. Then, click the 'Security & Privacy' button.

Navigate to your connected MetaMask wallet and click the Activity tab. Any pending transactions will be listed, along with the option to speed up the transaction for an additional gas fee. It is important to note that while you have the option to speed up, there is no guarantee that the transaction will confirm.

You must pay for that computation, just like you would pay for a successful transaction. This means there's no way around paying gas fees if you want to use a network. However, if you have a bit of time and flexibility, you may be able to reduce costs: You can try to lower gas fees in your transaction settings.

The gas limit (units of gas used)​

A normal transaction sending ETH or a token normally costs 21,000 gas, whereas an ERC-20 token approval requires 45,000. Many networks, such as EVM-compatible blockchain Harmony, use an identical model in which standard transactions also cost 21,000 gas.

What is the difference between gas options? ›

Retail gasoline stations in the United States sell three main grades of gasoline based on the octane level: Regular (the lowest octane fuel–generally 87) Midgrade (the middle range octane fuel–generally 89–90) Premium (the highest octane fuel–generally 91–94)

PREMIUM UNLEADED

Premium is typically 91-93 octane, depending on your location. Premium is designed for higher-performance vehicles or those with high compression ratios. Many manufacturers of high-performance cars require the use of premium-only fuel to honor their manufacturer's warranty.

For sending ERC20 tokens, the gas limit is usually around 200,000-250,000 units while a swap or deposit/withdrawal via DeFi Earn could take around 400,000-600,000 gas limit units - the more complex a smart contract is, the higher the gas limit is required to execute the smart contract transaction.

A gas token is a type of cryptocurrency that allows users to prepay for gas (transaction fees) on a blockchain network, such as Ethereum. Gas is the unit of measurement for computational work required to execute transactions or smart contracts on the network.

Gwei is a denomination of the cryptocurrency ether (ETH), used on the Ethereum network to buy and sell goods and services. A gwei is one-billionth of one ETH. Gwei is the most commonly used ether unit because Ethereum transaction fees are priced so that it is easier to refer to.

The price of gas is dynamic and is essentially a product of demand: the more people that are trying to get their transactions processed by the network, the higher it will be.

The gas limit is the maximum number of units of gas you are willing to pay for in order to carry out a transaction or EVM operation. Different operations demand different quantities of gas units. A normal transaction sending ETH or a token normally costs 21,000 gas, whereas an ERC-20 token approval requires 45,000.