Encyclopedia How the network works · Entry 218
Solo Bitcoin mining odds: expected time is not a deadline
In this article
At a glance
Key facts
Put both hash rates in the same units
Assume a miner supplies 100 TH/s while the whole network supplies 1,000 EH/s. Because one EH/s equals one million TH/s, the network rate is 1,000,000,000 TH/s. The miner’s share is one ten-millionth.
At an assumed network average of 144 blocks per day, the expected count is 0.0000144 blocks per day. The reciprocal is about 69,444 days, or 190.3 years using 365 days per year, if every assumption stayed fixed.
Expected waiting time is not a countdown
Using a constant-rate Poisson approximation, that hypothetical miner has probability 1 − exp(−0.0000144) of at least one block in a day, approximately 0.00144%. The model assumes steady effective hash share and independent successful hash attempts.
Waiting through an unsuccessful day does not make the next day owe the miner a block. The model’s expected wait can be long even though an early success remains possible.
Pooling changes payout variance rather than creating extra hash work
A pool combines contributions and applies its payout rules, usually producing smaller, more frequent credits for individual miners. A solo service may supply infrastructure while still leaving the miner exposed to solo reward variance.
Do not project the illustrative 190-year average as a real forecast. Difficulty, network hash rate, equipment reliability and operating strategy change; a claimed lucky outcome is not evidence that everyone can reproduce it.
Direct answers
Questions people ask
Am I due for a block after reaching the expected waiting time?
No. Under the constant-rate model, elapsed unsuccessful work does not create a scheduled future success. The expected value describes the distribution, not a deadline.
Does a pool increase my machine’s physical hash rate?
Joining a pool does not create additional calculations in the same hardware. It combines work and changes how rewards are shared and their variance.
Inspect the evidence
The answer and key facts have stable claim links. These records retain the scope and qualification when reused.
A solo miner’s chance of finding a block is approximately its share of effective network hash rate under comparable operating conditions. Expected block counts describe an average across repeated possibilities; they do not schedule a win. A miner can find a block quickly or operate much longer than the expected wait without one. Network conditions, downtime and valid-block propagation also affect practical results.
Educational explanation. Product-specific behavior is scoped to the cited documentation, checked 2026-10-02.
Scope: Bitcoin · data through 2026-10-02. Verification: verified · 2026-10-02T19:29:20.637Z.
Link to this claimExpected count: Hash share times assumed network block count
Scope: Bitcoin · data through 2026-10-02. Verification: verified · 2026-10-02T19:29:20.637Z.
Link to this claimNo deadline: An average wait does not guarantee success
Scope: Bitcoin · data through 2026-10-02. Verification: verified · 2026-10-02T19:29:20.637Z.
Link to this claimRevision history
- — First publication after primary-source research and separate automated verification.
Source register
Sources and references
Retrieval dates and locators are recorded individually.- MiningBitcoin developer documentation
Hardware work, candidate blocks and pool shares; historical examples are not current equipment recommendations.
Locator: Mining; Solo Mining; Pool Mining; Block Prototypes · Version / scope: Developer guide; historical implementation details require qualification · Retrieved: 2026-10-02T18:53:53.955ZOpen source - Bitcoin Mining Pools: 101f2pool
Historical 2020 explanation used for share-based reward mechanics and statistical variance; not current subsidy, price, fees, payouts or pool recommendation.
Locator: Mining pool payouts; Why do miners use a mining pool?; When should I consider solo mining? · Version / scope: Published 2020-03-18; historical example · Retrieved: 2026-10-02T18:54:53.532ZOpen source - Bitcoin: A Peer-to-Peer Electronic Cash SystemSatoshi Nakamoto
Independent hash attempts, incentives, transaction collaboration limits and Poisson block-arrival approximation.
Locator: Sections 4, 6, 7, 10 and 11 · Version / scope: 2008 paper · Retrieved: 2026-10-02T18:53:58.187ZOpen source
Research and drafting use AI assistance. A separate automated review checks claims against primary sources; no external expert or named human review is implied. Publication, substantive editing, source retrieval and verification are recorded separately. This version was independently checked by an automated reviewer on 2 October 2026.
Editorial method and correctionsDegrees of Satoshi editorial project. “Solo Bitcoin mining odds: expected time is not a deadline.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/bitcoin-solo-mining-odds/