Firsthand Bitcoin · Data · Bitcoin miners

Mempool

How many transactions are waiting to be confirmed, and the fee it takes to get into the next block.

91,546 on Sep 21, 2026.

The queue of transactions waiting for a block. When it grows, users bid up fees to get in, and every one of those fees goes to whoever mines the next block. A full mempool is a pay rise for miners.

The count is a daily reading of mempool.space; the fee overlay is what it recommended for next-block confirmation that day.

Transactions waiting in the mempool, month by month

MonthTransactions waiting in the mempool
2026-0991,546

Questions

What is mempool today?
91,546 as of September 22, 2026.
What is the highest transactions waiting in the mempool on record?
91,546, on September 22, 2026.
How is this chart calculated?
The queue of transactions waiting for a block. When it grows, users bid up fees to get in, and every one of those fees goes to whoever mines the next block. A full mempool is a pay rise for miners.

Data: CSV · JSON. Embed: <iframe src="https://firsthandbitcoin.com/embed/mempool" width="100%" height="420"></iframe>. Free to reuse with a link to this page.

Updated daily. Latest data 2026-09-22.

Network hashrate · Mining difficulty · Difficulty adjustments · Fees paid to miners · Transactions per day · Active addresses · UTXO set · Block size and transactions per block · Blocks mined per day · Median confirmation time · Blockchain size · Miner revenue per transaction