Confirmation Time

Beginner
Жаңыртылган Aug 26, 2026

What Is Confirmation Time?

Confirmation time is the period between a blockchain transaction’s submission to the network and its inclusion in a confirmed block. It represents how long a user waits before a miner or validator processes and records their transaction.
Confirmation time can vary depending on the blockchain network, the level of network congestion, and the transaction fee offered. It is commonly used as a metric to assess the speed and efficiency of a blockchain network.

How Confirmation Time Works

When a user broadcasts a transaction, it enters the mempool, a waiting area for pending transactions. Miners or validators select transactions from the mempool and include them in new blocks. Once a transaction is included in a block and that block is added to the chain, the transaction receives its first confirmation.

Each new block mined on top of that block adds another confirmation. For example, if a transaction is in block 800,000, then block 800,001 provides the second confirmation, and so on. The more confirmations a transaction has, the more secure it is generally considered.

Bitcoin's block time averages 10 minutes, meaning a single confirmation typically takes about 10 minutes. However, during periods of network congestion, transactions with lower transaction fees may have to wait much longer before they are included. Offering a higher fee generally incentivizes miners to prioritize a transaction, which can reduce the confirmation time.

Why Confirmation Time Matters

Confirmation time is an important consideration for merchants, exchanges, and anyone accepting cryptocurrency payments. Most service providers do not consider a transaction final after just one confirmation. Instead, they typically wait for multiple confirmations before treating the payment as irreversible.

The number of confirmations considered sufficient varies by blockchain. Bitcoin users usually wait for at least 6 block confirmations, which takes roughly 60 minutes on average, to consider a transaction highly secure. Blockchains with shorter block times may require more confirmations to achieve a similar level of security.

Because confirmation times fluctuate with network demand, average confirmation time is often a more useful metric than the time of any single transaction. This average can help users and developers assess the typical performance of a blockchain network and compare different networks.