BTC: Local Mempool Virtual Size — Sample Mean

Bitcoin Local Mempool Virtual Size — Sample Mean was 33,245,374.83 vbytes on 9 Nov 2026 (latest daily value).

The average of virtual-size samples from our own Bitcoin Core node's local mempool in each UTC hour or day, in vbytes.

Why use it. Summarize how much transaction data, in virtual bytes, this node's mempool held across each period. How to read it. Each point is the arithmetic mean of the available irregular samples in the UTC hour or day, not a time-weighted network average, so unevenly spaced samples weight parts of the period differently. Virtual size is distinct from the node's mempool memory usage, which has its own chart. Samples are prospective observations, beginning 2026-10-03, with no earlier observations reconstructed. Mempool policy and visibility are local to this node, so this is one node's view, not a network-wide figure.

Calculation. Sample the local mempool virtual size of our own validated Bitcoin Core node at irregular times. For each UTC hour or day, take the arithmetic mean of the available samples, normalized to 40 significant decimal digits for publication. Coverage records the first and last observation, sample count and gaps.