Mempool Mean Fee Rate
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About this metric
What it measures
Mempool Mean Fee Rate averages the offered fee rates of transactions awaiting confirmation in the observed mempool, in satoshis per virtual byte (sat/vB). Each transaction’s fee rate is its fee in satoshis divided by its virtual size.
How to read it
An increasing mean indicates higher average bids for block space; a declining mean points to a cheaper mix of pending offers. On April 20, 2024, the recorded mean reached 993.6 sat/vB, compared with a full-history median of daily readings near 11.85 sat/vB.
The mean is sensitive to the high-fee tail and does not describe what most transactions offer. Confirmation removes transactions from the sample, and new arrivals or replacements change it again. Use the median and fee-tier breakdown for context; a daily average is not a fee recommendation for the next block.
- Frequency
- Daily (UTC 00:00)
- Asset
- BTC
- Category
- Mempool
- Type
- Single value
- Unit
- sat/vB
- Data since
- 2021-10-15
- Latest data
- 2026-10-27
- Data points
- 1,838
FAQ
What does sat/vB mean?
It is satoshis paid per virtual byte of transaction size. Multiplying a fee rate by a transaction’s virtual size gives its approximate fee in satoshis; the BTC amount being sent is not the size used here.
Why compare the mean and median mempool fee rates?
The mean responds strongly to extreme bids, while the median describes the middle of the fee-rate distribution. A mean well above the median suggests an uneven distribution with a high-fee tail.
Is the mempool mean fee rate the average fee paid on-chain?
No. It concerns fee rates offered by transactions still waiting, in sat/vB. Average Transaction Fee measures fees of confirmed transactions in BTC per transaction, so both the population and unit differ.
