How Does the Solo Mining Calculator Work?
The solo mining calculator estimates your probability of finding a Bitcoin block on your own. Enter your miner’s hashrate, and the calculator uses the canonical formula to determine your expected time to find a block.
The result is your expected time to find a block, measured in seconds. From that value, the calculator derives your probability per block, per day, and over longer timeframes. It also compares your chances to the odds of winning the Powerball lottery, putting Bitcoin lottery mining into real-world perspective.
Solo mining means you compete for the entire block reward (currently 3.125 BTC plus transaction fees) instead of splitting it with a mining pool. At current prices, a single block find is worth over $200,000. The odds are long, but open-source home miners have already proven it is possible.
What Factors Determine Your Solo Mining Odds?
The bitcoin solo mining calculator uses two inputs to determine your probability of finding a block:
- Your Hashrate: The computing power of your mining hardware, measured in GH/s, TH/s, or higher. The higher your hashrate, the more lottery tickets you hold per block.
- Network Difficulty: The difficulty adjusts every 2,016 blocks (roughly two weeks) based on total network hashrate. Higher difficulty means harder blocks. Lower difficulty means each hash has a better chance of winning.
The calculator pulls live network difficulty data and the current block reward value to give you an accurate, real-time solo mining probability estimate.
Proven: A Solo Satoshi Customer Won a Bitcoin Block
The solo mining calculator shows you statistical probabilities. Here is what happens when probability meets persistence.
On October 27, 2025, a Solo Satoshi customer found Block #920,440 using a cluster of six NerdQaxe++ Rev 6 units plus one Avalon miner, totaling approximately 130 TH/s. The setup was connected to a self-hosted Public Pool instance running on Umbrel.
- Block Reward: ~3.15 BTC (~$342,000 at time of discovery).
- Hardware: NerdQaxe++ Rev 6 units purchased from Solo Satoshi.
- Outcome: The customer emailed Solo Satoshi after the win and shared that the reward would be used to pay off his home.
- Significance: This is the largest confirmed payout to an open-source home miner.
The interval between confirmed solo block wins has been shrinking: 229 days, then 179 days, then 52 days, then just 25 days. As the installed base of open-source miners grows, blocks are being found more frequently.
Read the full breakdown: NerdQaxe++ Revision 6 Block Found on Public Pool.
Why Use a Solo Mining Calculator?
A bitcoin solo mining probability calculator is an essential planning tool for home miners. Here is how it helps:
- Set Realistic Expectations: Solo mining is high-variance. The calculator shows your actual per-block and daily odds so you know what you are getting into. No guarantees, just math.
- Compare Hardware: Enter different hashrate values to see how upgrading hardware changes your probability.
- Plan Multi-Miner Setups: Running multiple units stacks your hashrate. Enter your combined total to see the improved odds. The Block #920,440 winner ran six NerdQaxe++ units to reach ~130 TH/s.
- Understand ROI: Pair the solo mining odds calculator with the power consumption calculator to weigh your monthly electricity cost against the potential block reward.
Solo Mining vs. Pool Mining
Solo mining and pool mining serve different goals.
- Pool mining delivers small, consistent daily payouts. You share the block reward with all pool participants, minus a pool fee (typically 1-4%). Use the Mining Pool Stats tab to estimate daily pool earnings.
- Solo mining delivers nothing until you win a block, and then you receive the entire reward. Think of it as a lottery ticket that costs roughly $2/month in electricity for a single Bitaxe.
Solo mining also supports Bitcoin decentralization. Every independent miner strengthens the network by reducing hash power concentration in large pools. Solo miners who run their own Bitcoin node can construct their own block templates, further decentralizing transaction selection.
Many home miners run both strategies. Use pool mining for steady sats and solo mining for a shot at the full block reward. Read 8 reasons you should be solo mining Bitcoin for more on why the math works in your favor long-term.
How to Start Solo Mining Bitcoin
Getting started with solo mining takes less than five minutes with the right hardware:
- Choose your miner. The Bitaxe Gamma 602 is the best-selling entry point at ~$98. For higher hashrate, the Bitaxe Duo 650 offers 48% more hashing power at ~$130. See the mini Bitcoin miner comparison guide for a full breakdown.
- Power it up. Common Bitaxe models mostly run on 5V or 12V DC.
- Connect to a solo mining pool. Point your miner to Solo CKPool (solo.ckpool.org) or Public Pool (public-pool.io). These services handle the network connection while you keep the full block reward if you find a block.
- Monitor and optimize. Access your miner’s dashboard via any browser on your local network.
Most Bitaxe miners from Solo Satoshi ship assembled and tested in the USA with same-day shipping and a 90-day warranty. We have shipped over 40,000 devices to 70+ countries since May 2024 with 400+ verified reviews across platforms.
Understanding Solo Mining Probability
Every single hash your miner produces has an equal chance of being the winning hash. A Bitaxe Supra at 650 GH/s could theoretically find the next block before a 100 PH/s mining farm. Probability is not a queue. It is a lottery that runs approximately every 10 minutes, and every hash is a new ticket.
The Bitcoin network produces roughly 144 blocks per day. Your daily probability compounds across all 144 opportunities, and your yearly probability compounds across approximately 52,560 blocks.
The key takeaway: adding more hashrate directly improves your odds. Running two Bitaxe Gamma 602 miners doubles your probability. Running six of them (as the Block #924,569 winner did) multiplies it by six. The NerdQaxe++ Rev 6.1 at 6+ TH/s delivers roughly 5x the odds of a single Gamma in one device. Use the btc solo mining calculator above to model your exact setup.
For more on what your miner is actually doing behind the scenes, read What Exactly Is My Bitcoin Miner Doing?
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