Bitcoin Mempool Explorer

Real-time view of Bitcoin's mempool — the waiting room for unconfirmed transactions. Data updates every 30 seconds via mempool.space.

Live Mempool

—sat/vB

Next Block

~10 min

—sat/vB

30 Minutes

~2 blocks

—sat/vB

1 Hour

~6 blocks

—sat/vB

Economy

Hours+

How Bitcoin Fees Work

Bitcoin transactions are priced in satoshis per virtual byte (sat/vB). Virtual bytes measure transaction weight accounting for SegWit discounts. Miners select transactions with the highest fee rate first to maximize revenue. During congestion, you need to pay more to get into the next block. During quiet periods, even 1 sat/vB transactions confirm quickly.