![]() Size=148*input quantity+34*output quantity+10 If you do not get the priority mentioned in the third point, then you must charge a transaction fee! You must "weigh" the size of your transaction. A small transaction actually has 6 inputs, which causes the transaction data volume to increase and a lot of transaction fees are deducted. A look in the browser shows that the online wallet uses fragmented scattered money. ![]() Therefore, the more complex the input and output items of a transaction, the larger the amount of data, and the more handling fees that need to be paid.įor example, once someone wants to give a prize to a user, the prize is BTC worth 66 yuan, using an online wallet to send bitcoin, but every time a prize is issued, a handling fee of about 50 yuan will be deducted, and then it will be sent to the blockchain. The transaction containing more data will take up more disk space and require more network bandwidth to transmit. Step 4: "Weighing" chargesīitcoin transactions appear as a string of digital data. On the contrary, if the input amount of the transaction is large and the time is long, it can avoid being charged. ![]() Have you found out that there is a situation that will definitely be charged, that is, the money paid is originally small, and it is composed of multiple scattered money, and the time for you to get the scattered money is very close, then this The transaction will not escape being charged. If the value of X is less than 0.576, the transaction will be charged, and if X is greater than 0.576, priority can be obtained to avoid charging. Whether a transaction needs to pay a commission depends on the size of the following priority value (just a simple model, the real situation is more complicated): Step 3: The higher the amount, the older the currency, the higher the priorityĮvery transaction will have a priority. The wallet has an established rule when preparing your payment amount, which is to avoid changes in the amount less than 0.01BTC when preparing the payment amount in many inputs (for example, if you want to pay 5.005BTC, the wallet should choose 3+2.005 as much as possible Or 1+1+3.005. If the "output" of the transaction is less than 0.01 BTC, then a handling fee of 0.0001 BTC will be charged. Step 2: Discourage piecemeal paymentsīitcoin's current algorithm discourages fragmented payments, because a large number of fragmented payments will increase transaction data and cause slow transactions in the entire system. When you want to pay someone else in Bitcoin, the Bitcoin client will select the appropriate unspent output and send it out as the input for the next transaction. When you use the Bitcoin client to send bitcoins, the whole process is roughly divided into the following steps: Step 1: Choose the appropriate unspent outputĪs mentioned earlier, the transaction will eventually leave multiple unspent outputs, and these unspent outputs will not be merged! For example, if you receive two payments, 2BTC and 3BTC, these two unspent outputs will Stored separately in the wallet, and will not be merged into 5BTC. The more complex the output of unspent transactions, the more bytes that need to be processed, and the higher the handling fee. But when a single input is not enough to pay for the output, the above-mentioned multiple transaction input constitutes an unspent output problem, and its data volume will become larger at this time. Generally, an ordinary Bitcoin transaction is composed of one input and two outputs (transaction output and change output), about 200 bytes, if the default charge is 0.0001 Bitcoin per 1000 bytes, then a Bitcoin transfer procedure The fee is about 0.001-0.002 bitcoins. So, how to calculate the Bitcoin transaction fee? 2021 Bitcoin transaction fee breakdown Bitcoin is a decentralized system, and the specific amount of fees is not regulated by an authoritative institution, but is formed by free competition in the market. If the transaction fee is set too low, the transaction will be ignored by the miners. How to calculate the Bitcoin transaction fee? The more users who use Bitcoin to transfer money, the busier the miners will be.
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