CPU Mining Profitability Calculator
Estimate your daily, monthly, and yearly mining profit with realistic inputs for hashrate, network competition, electricity cost, and pool fees.
This is an estimate. Real-world mining returns vary with difficulty, luck, downtime, and market volatility.
How this CPU mining calculator works
CPU mining profitability is mostly a math problem. Your processor contributes a tiny fraction of the total network hashrate. That fraction determines how many blocks (and therefore coins) you can expect to earn over time. Then you convert those coins into dollars and subtract your power bill.
This calculator uses a straightforward expected-value model:
- Your network share = your hashrate / network hashrate
- Blocks per day = 86,400 / block time
- Coins per day = share × blocks/day × block reward × (1 − pool fee)
- Revenue per day = coins/day × coin price
- Electricity cost per day = (watts × 24 / 1000) × electricity price
- Net profit per day = revenue/day − electricity/day
Input fields explained
1) Hashrate
Your CPU hashrate depends on your processor model, number of cores/threads, memory speed, tuning, and mining software. Use a measured value from your miner dashboard whenever possible.
2) Network hashrate
This represents the total mining power securing the network. If network hashrate rises, your slice gets smaller and expected rewards fall.
3) Block reward and block time
Different coins have different economics. Some have tail emissions, periodic halvings, or dynamic rewards. Block time controls how many reward events happen per day.
4) Power and electricity cost
Power draw is frequently underestimated. Measure at the wall if you can. Also include local electricity rate, taxes, and time-of-use pricing for accuracy.
5) Pool fee
Mining pools charge a fee (often 0.5% to 2%). Lower fee helps, but payout reliability and uptime matter too.
6) Hardware cost
Use this to estimate break-even time. If your net daily profit is negative, break-even is not reachable under current assumptions.
Practical tips to improve CPU mining results
- Undervolt and optimize: Better efficiency can improve net profit more than raw hashrate gains.
- Use huge pages and proper config: Some algorithms benefit heavily from optimized system settings.
- Monitor thermals: Thermal throttling can silently reduce hashrate.
- Mine when rates are lower: Time-of-use electricity plans can materially change profitability.
- Track difficulty trends: Network growth can erode profits even when coin price is flat.
Reality check: when CPU mining makes sense
CPU mining is rarely a quick path to major profit. It may still make sense for hobbyists, people who already own hardware, users with cheap electricity, or those accumulating coins long-term. But if your power cost is high, net returns may be slim or negative.
Think of this tool as a planning instrument, not a guarantee. Run several scenarios (bull, base, and bear assumptions) to understand risk.
FAQ
Is solo mining better than pool mining?
Solo mining can have huge variance: long periods of zero reward and occasional large wins. Pool mining smooths payouts and is more predictable for most users.
How often should I recalculate?
At least weekly, and anytime coin price, difficulty, or electricity rate changes significantly.
Should I include hardware depreciation?
Yes, especially for serious profitability analysis. You can treat depreciation as a monthly cost and subtract it from net profit.
Final thoughts
A good CPU mining calculator helps you avoid emotional decisions and focus on data. Start with conservative inputs, account for real power usage, and always compare projected returns against alternative uses of your capital.