Cryptonomics: What Are Blockchain Transaction Fees


Blockchain Transaction fees are charges paid to transfer cryptocurrency from one wallet to another. It is what compensates miners and transaction validators who keep things on the blockchain running smoothly. Miners are powerful computers that validate and confirm transactions on the blockchain network. 

They arrange the transactions in the blockchain in order of inclusion. It acts as a firewall between the network and spam attacks. Let’s look at some important details to note about transaction fees.

What You Need to Know About Blockchain Transaction Fees

Why Are They Important

As already discussed, blockchain transaction fees mitigate spam attacks on the network. The transaction price will determine if there are more attacks or not. That means there are more spam attacks on the network if the transaction fee is too cheap and vice versa. If you pay a reasonable fee, then your transactions will make the next block. 

How Are the Fees Calculated?

Because different cryptocurrency algorithms are different, their transactions will also be very different. For Bitcoin, the fee depends on the byte size of each deal. Consider the average transaction fee is 75 Satoshi per byte and the size of your transaction is 300 bytes. You will pay at least 30,000 Satoshis for faster validation of your transactions. 

If the market is volatile, then the transaction fees will also be high for faster validation. You, however, don’t have to worry about calculating Bitcoin transaction fees on your own. Each Bitcoin wallet has its own fee structure. Unfortunately, miners will ignore your transaction and not confirm it if you don’t pay transaction fees. 

The gas determines Ethereum transaction fees (the computing power a transaction consumes) each transaction requires. The algorithm looks at your gas cost, the price of gas per hour of work, and the maximum cost per transaction (gas limit) to determine the transaction fee in Ethereum. The charges can still be high if the traffic on the network is high. 

The market price will determine the transaction fee on a Binance chain. Its technology differs from the others because it uses validators instead of miners. 

The Factors That Determine the Size of a Transaction Fee

In most cryptocurrencies, the bigger the size of your transaction, the more you have to pay to have your transaction validated faster. However, because there is a finite amount of data in a block, there is a cap on the number of transactions miners or validators will allow. 

The traffic in a network will increase demand for block spaces because there will be more transactions that need validation at a go. If the demand for these block spaces is high, the transaction fee will also be high. If you have a large transaction, you will have to wait longer for validation and, in turn, have to pay a larger fee. 


With more people getting into cryptocurrency, the traffic will affect the network. The more the demand, the larger your transaction, and the more volatile the markets are, the higher the transaction fee. As discussed, the importance of transaction fees on the network concerns when the transaction fees are too high.