I found this cost formula:

enter image description here

As you can see, the larger the transaction, the more resources are needed to store and process it.

So, my question is: Will Cardano's transaction fees be expensive(similar to ETH gas) in the future?

2 Answers 2


My answer is no. And there are two reasons.

  1. Cardano is a PoS protocol. Therefore, users don't pay for electricity cost. In a PoW system, miners need to solve computational questions to be able to produce blocks which consumes electricity. This price is covered by users when users make transactions.

  2. Cardano will have more TPS compares to Ethereum currently which also contributes to a lower transaction fee.

However, on-chain solutions have limitations. Blockchains need to implement off-chain solutions to increase TPS and lower transaction to be able to make microtransactions. Cardano has given their solution which is called Ouroboros Hydra.

  • hum, PoS is still have storage problem, what will happen when the storage is scale up day by day? May 4, 2021 at 7:47
  • 1
    @RongNguyen about the size of the blockchain, there currently is a question: cardano.stackexchange.com/a/280/38 but it is indeed two question in one, the first asks for its size nowadays. I think you could/should ask a dedicated question in your theme "what will happen when the storage is scale up day by day". Maybe provide some more details about your concern. For example in the other question I could not provide the information of the speed at which the blockchain grows. That's the sort of detail that could be really helpful. May 4, 2021 at 8:03

The transaction fees can be changed if required "to react and adapt to changes in transaction volume, hardware prices and ADA valuations".

They are not being changed for the foreseeable future. In the longer term these can be changed but will be unlikely to change frequently. A major benefit of the ADA approach is that it gives a high degree of predictability to transactions. Each change would require proposal, planning, agreement and a hard-fork event.

Given the goals of Cardano and the likely increase in the value of ADA over time, I believe the cost in ADA is more likely to decrease than increase. If Cardano is to achieve its goal of banking the unbanked the cost will probably go down in real terms too.

Eth fees are high partly to prioritize transactions and mitigate Eth's performance bottleneck for those that can afford it. Cardano has no way to pay for transaction priority.

  • Thank you for your answer, I hope your desired function will be available! May 4, 2021 at 8:35

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