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What is Gas Usage in Ethereum Network and How is it Calculated?

what is gas usage in ethereum

Ethereum Gas is a unit that measures the amount of effort and computational energy that is required to perform certain operations. In other words, it is in a way the blood for the Ethereum ecosystem. This is probably the best and simplest way to think about the concept of Gas. Every single operation that takes place in Ethereum network, from a simple transaction to complicated smart contracts needs some amount of Gas to be done. Gas is what Ethereum uses to calculate the amount of fees users need to pay to the network so that they are allowed to carry on their operation. In this article, we are going to talk about Ethereum Gas and how it works.

What is Gas?

Gas actually refers to the pricing value or the fee that is needed to successfully create a transaction or to execute a contract on the Ethereum network also known as the blockchain. Gas is priced in small fractions of Ethereum’s cryptocurrency, Ether (ETH). These small fractions are called gwei and even sometimes are referred to as nanoeth by people on the Internet. The Gas is mainly utilized to allocate some amounts of EVM’s (Ethereum Virtual Machine) resources so that decentralized apps such as the popular smart contracts are able to execute themselves in a decentralized yet secure fashion.

What is the Exact Price of Gas?

Supply and demand between the Ethereum network miners will mostly determine what the exact fee of the Gas is. These miners have the ability to decline processing a transaction and validating it in case the gas price does not meet their standards. Users of the Ethereum network who look for processing power can also affect the Gas prices.

Understanding Gas in Ethereum

The whole concept of Gas was introduced to the Ethereum network in order to maintain a distinct value layer. This value layer could indicate the amount of consumption of computational expenses on the Ethereum blockchain by itself. Now you might ask yourself “why did they use a separate unit for this process?”. Well most importantly, having a separate unit allows for a practical difference between the computational cost of utilizing EVM or Ethereum Virtual Machine and the actual price of the Ethereum cryptocurrency, ether (ETH). In this case, Gas is not the gasoline required for your car but the gasoline which is needed for Ethereum to run. It refers to the transaction fees of the Ethereum network.

understanding gas in ethereum

Gas fees are in fact payment fees that the users make to compensate for the computing energy that is needed for the process of validation and confirming the transactions on the Ethereum network. Gas limit is the maximum amount of gas (computing energy) that the users are willing to spend on validating a certain transaction. It is obvious that with a higher gas limit, you have to put in more work in order to be able to execute a transaction by utilizing a smart contract or ETH itself.

Real Life Analogies

Let’s draw an analogy! Imagine a car in real life. You want to drive it from A to B. the distance between A and B is X miles. To drive the car X miles, you are going to need Y amount of fuel. Another example would be when you want to transfer money to your friend’s bank account. In this case, you are going to have to pay Y amount to the bank as a processing fee for X amount of money. In both cases, X indicates the utility value and Y is the price needed to perform the processing of the financial transaction or the car trip.

Similar to the examples above, a transaction or a contract on the Ethereum network might be worth 50 ETH (or the X amount), and then the gas price which is needed to process the said transaction may be something like 1/100,000 ETH (or the Y amount).

Mining and Gas

mining and gas

In return for all their computational services, Ethereum miners – who are responsible for performing all of the vital tasks of processing and validating the transactions on the Ethereum network or the blockchain – will get rewarded with this particular fee. This is where it gets interesting. So, let’s say the gas price for the validation of transactions is too low for the users. Here, the miners have the option to ignore such transactions as they are simply not worth it. In the exact sense of the word, the gas price will fluctuate with supply and demand for the required processing power (the prices are in ETH).

The Ethereum Virtual Machine (EVM)

The Ethereum Virtual Machine has the capability to run smart contracts which can represent financial agreements. Examples are options contracts, coupon paying bonds or swaps. It is also able to be used to create bets and wagers in order to fulfil employment contracts and to act as a trusted escrow to purchase items with high values and also to maintain a legit gambling facility in a decentralized fashion. These were all just simple examples of all the possibilities with smart contracts and the potential for all kinds of social, financial, and legal agreements to be replaced. These are all really exciting.

Final Words

Gas refers to the necessary fee for the process and confirmation of transactions on the Ethereum network or the blockchain. Miners are able to set this fee based on supply and demand rules. Put simply, the price of Gas is dependent on the computational power of the network which is required to perform transactions and execute smart contracts. Gas fees are designated by small fractions of Ethereum’s cryptocurrency (ether) which is referred to by many people as gwei or nanoeth. The price of gas for internal processing – which is different from how Ethereum tokens value the valuation of the crypto assets – disaggregates the processing layer and the value layer of the Ethereum network.


Gas Usage in Ethereum


Price of Gas


Ethereum Network Miner


Ethereum Virtual Machine