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An Introduction to ETH Gas Fees

Published on: Jul 26, 2023
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In Brief

Learn about Ethereum gas fees, the role it plays in blockchain transactions, and much more. Also, discover what influences gas fees and learn tips and tricks to lower them.

An Introduction to ETH Gas Fees


Blockchain technology and crypto have revolutionized the way we handle digital transactions and paved the way for the new world of Web3. To navigate this exciting space, it's crucial to grasp the fundamental concepts. One such basic term is gas – which is something we typically find in the context of Ethereum Virtual Machine (EVM)-based blockchains.

Put simply, gas fees simply represent the costs associated with executing transactions in such networks, but some deeper knowledge is required to efficiently pay them. In this blog, we'll explore the fundamentals of gas fees, their importance in prioritizing transactions, and practical tips to optimize your experience.

And remember, you can always practice what you’ve learned with Trust Wallet, which is a great way to access Web3 dApps, where you’ll often pay your gas fees. Of course, Trust Wallet is also a safe and secure way to store crypto assets such as bitcoin, ethereum, and many other coins and tokens.


So let's take a deeper dive into gas fees to gain a better understanding of their role in the crypto ecosystem.

Crypto, Ethereum, and Smart Contracts

If you're new to cryptocurrency, it would be helpful to do a quick recap of the most general concepts before diving into more specific things such as gas fees.

A cryptocurrency is a digital representation of value that uses cryptography for secure transactions. It operates on a decentralized ledger called blockchain, which is a public database that records all transactions in a distributed and immutable manner.

Now, let's talk about Ethereum and smart contracts.

Ethereum is a popular blockchain network that can do much more than just simple transactions of value. This platform allows developers to build decentralized applications (DApps) using smart contracts – self-executing agreements with predefined conditions that are recorded on the blockchain. Now, let’s look at how gas fees fit into the equation.

Unpacking Gas Fees

For anyone wanting to work with smart contracts, it's important to understand the concept of gas on Ethereum and other blockchains. In simple terms, gas is a unit of measurement that represents the computational effort required to execute transactions and associated smart contracts on the blockchain. Each operation within a transaction or smart contract consumes a certain amount of gas.

Gas fees refer to the cost associated with executing transactions or smart contracts on the blockchain. These fees are paid to network validators in the form of the cryptocurrency used on the respective blockchain. Gas fees cover validators’ expenses and incentivize them to process transactions or execute smart contracts on the blockchain network.

It's also worth noting two related terms: gas limit and gas price. The gas limit is the maximum amount of gas a user is willing to spend on a transaction or smart contract execution, while the gas price is the amount of cryptocurrency they’re willing to pay for each unit of gas. Setting an appropriate gas limit and gas price ensures that your transaction is processed efficiently and in a timely manner.

After London

Since Ethereum’s London upgrade, which took place in August 2021, there have been slight changes to the traditional gas model. A base fee was introduced that adjusts automatically based on network demand, making transactions more efficient and reducing the likelihood of exorbitant fees during periods of congestion. Users no longer need to use a “blind bidding” model, but they can leave a tip for the miner as an incentive. Additionally, a portion of the base fee is burned as a deflationary mechanism.

The Functional Role of Base Gas Fee

Ethereum's base gas fee plays a large role in the process of prioritizing transactions on the network. The base fee is variable and denotes the minimum amount of gas required to execute a transaction or smart contract on the network.

When the network becomes congested, the base gas fee increases, making it more expensive to execute transactions. This increase in cost helps to prioritize transactions, as users have to pay higher fees to have their transactions processed. This ultimately reduces demand, as many users don’t want to pay these higher fees, which helps alleviate the congestion.

The base gas fee also protects the network from spam and abuse. By having a cost associated with every operation, Ethereum discourages malicious actors from flooding the network with frivolous or spammy transactions. This cost acts as a deterrent, as users must pay for each operation they perform on the blockchain. This helps to maintain the overall efficiency and security of the network, ensuring that valuable resources are utilized appropriately.

Ethereum Gas Trackers: A Useful Tool for Navigating Gas Fees

Tracking gas fees and how much they are at a given time can be a bit overwhelming, and that's where Ethereum gas trackers come in handy.

Such tools, like Etherscan, provide valuable information on gas fees in real-time. They allow users to track the current gas prices on the Ethereum network, giving them a clear view of the costs associated with transactions and smart contracts’ execution. With this information at their fingertips, users can make more informed decisions about when to send their transactions to ensure timely processing and avoid overpaying during peak congestion. Ethereum gas trackers help demystify the complexities of gas fees, making it easier for newcomers to get a fair price on their transaction fees and enjoy a smoother Web3 experience.

What Influences the Size of Gas Fees?

On Ethereum, network congestion plays a significant role in determining the cost of gas. When there is a high volume of transactions being processed on the blockchain, the fees tend to increase due to limited resources and increased competition for block space.

Additionally, the base fee, which indicates the minimum cost for transactions, can fluctuate based on network demand as well. In situations where there is high demand for computational resources on Ethereum, such as when a popular decentralized application experiences a surge in usage, gas fees and the base fee can soar dramatically.

Tips and Tricks to Lower Gas Fees

If you do it right, savings on Ethereum gas fees can be significant. Here are a few practical tips to help better time your transactions:

1. Consider using the Ethereum network during low-traffic times when fewer transactions are being processed. You can check when activity is low by using a blockchain explorer like EtherScan. This can help you take advantage of lower gas fees. 2. Explore Layer-2 solutions that can offer significant savings on gas fees. Layer-2 solutions (such as Polygon, for example) are protocols built on top of the Ethereum blockchain that aim to improve scalability and reduce gas fees. These networks allow users to perform transactions off the main Ethereum network, resulting in lower fees and faster processing times.

By keeping these tips in mind and staying informed about the latest developments in Ethereum's ecosystem, users can optimize their experience and lower the gas fees they pay.


Understanding gas fees and their impact is crucial for navigating the world of cryptocurrency. Make sure to take advantage of the tools and tips we’ve discussed to increase your knowledge, do your own research (DYOR), and make the most out of your Web3 journey.

To further optimize your experience, consider using Trust Wallet to store your digital assets and interact with blockchains while conveniently paying your gas fees. Get Trust Wallet to start exploring the world of decentralized finance with ease.


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