Mining ROI
Real profitability modeling. Not just revenue projections, but honest accounting of costs, risks, and the non-financial value mining provides.
The Mining ROI Formula
Mining profitability is straightforward math, but many calculators online oversimplify it by ignoring difficulty growth, pool fees, and hardware depreciation. Here is the complete formula:
Daily Profit = (Daily BTC Earned × BTC Price) − Daily Electricity Cost − Daily Pool Fee − Daily Hardware Depreciation
The critical variable most people underestimate is difficulty growth. Bitcoin network hashrate has grown roughly 40% per year over the past five years. That means your daily BTC earnings decrease over time even if your hardware performance stays constant. Live Network Stats
Revenue Modeling: What Can You Earn?
The following table models daily Bitcoin earnings for common hardware at current network conditions (approximately 950 EH/s network hashrate, 3.125 BTC block reward, difficulty ~145 T, March 2026). These are estimates that decrease as difficulty rises.
| Miner | Hashrate | Daily BTC (est.) | Monthly BTC (est.) | Daily USD @ $74K |
|---|---|---|---|---|
| Bitaxe Gamma 601 | 1.2 TH/s | 0.0000000057 | 0.00000017 | $0.0004 |
| Antminer S19k Pro | 120 TH/s | 0.0000570 | 0.00171 | $4.22 |
| Antminer S21 Pro | 234 TH/s | 0.0001113 | 0.00334 | $8.24 |
| Antminer S23 | 318 TH/s | 0.0001512 | 0.00454 | $11.19 |
| Whatsminer M56S++ | 230 TH/s | 0.0001094 | 0.00328 | $8.09 |
The Bitaxe Gamma earns fractions of a cent per day. This is not a flaw. It is a $120 to $250 educational tool, not an income generator. The Antminer S23 earns roughly $11 per day in revenue before electricity costs at current BTC prices. Whether that is profit depends entirely on what you pay for power.
Mining ROI Calculator
Network: ~950 EH/s | Block reward: 3.125 BTC | Difficulty: ~145 T
Daily
0.000148 BTC
Revenue: $10.92
Electricity: $8.40
Profit: $2.53
Monthly
0.004429 BTC
Revenue: $327.71
Electricity: $251.86
Profit: $75.86
Year 1 (adj. for difficulty)
0.045404 BTC
Revenue: $3,359.93
Electricity: $3,022.27
Profit: $337.66
Estimates based on current network conditions. Bitcoin price, mining difficulty, and transaction fees fluctuate. This calculator does not account for hardware failures, maintenance costs, or cooling expenses. Not financial advice.
Real Cost Breakdown
Mining costs go beyond the sticker price of hardware. Here is a comprehensive breakdown of what you will actually spend:
Initial ASIC purchase, PSU if not included, network equipment, surge protector. Budget $4,500 to $6,000 for a current-gen unit.
The dominant cost. A single S21 at $0.10/kWh costs $252/month. At $0.30/kWh (Germany), that jumps to $756/month. This alone determines profit or loss.
Deducted from your Bitcoin earnings by the pool. PPS+ pools charge 2% to 4%. PPLNS pools charge 1% to 2%. Foundry charges 0% for institutional clients.
Ventilation, ducting, electrical upgrades (220V circuit), noise insulation, monitoring equipment. One-time costs that add up to $200 to $1,000.
Fan replacements, dust cleaning, firmware updates, potential hashboard repairs. Budget $50 to $200 per year.
Breakeven Analysis
Breakeven is the point where your total mining revenue (minus operating costs) equals your initial hardware investment. After breakeven, every satoshi earned is profit.
| Scenario | Rate | Monthly Profit (S21) | Breakeven |
|---|---|---|---|
| Stranded/Solar | $0.02/kWh | ~$280/mo | ~16 months |
| Cheap Hydro | $0.05/kWh | ~$230/mo | ~20 months |
| Texas Residential | $0.08/kWh | ~$130/mo | ~35 months |
| US Average | $0.16/kWh | -$60/mo | Never |
| Germany | €0.35/kWh | -$550/mo | Never |
Important caveat: These projections assume constant BTC price and a conservative 3% monthly difficulty increase. In reality, both fluctuate significantly. A 50% BTC price increase would make several of the "Never" scenarios viable. A 50% price drop would make even cheap-power scenarios difficult.
The DCA Calculator can help you compare: would the same monthly investment in buying Bitcoin outperform mining returns?
Beyond Profit: The Full Value of Mining
Pure ROI calculations miss several sources of value that mining provides. These are harder to quantify in dollar terms but are real and important to many miners.
Mining is one of the last ways to acquire Bitcoin without providing identity documents to a third party. For privacy-conscious individuals, this has significant value. The premium for non-KYC Bitcoin on peer-to-peer markets is typically 5% to 15% above spot price.
ASICs convert nearly 100% of electricity into heat. In cold climates, routing this heat into living or working spaces offsets your heating bill. If you were going to spend $200/month on electric heating anyway, that $200 is now producing Bitcoin instead of just warmth.
Running mining hardware teaches you about hashrate, difficulty adjustments, fee markets, block construction, and energy economics in a way no book can. Many of Bitcoin's most effective advocates and builders started as hobby miners.
Every home miner who runs hardware contributes to the geographic distribution of hashrate, making Bitcoin more resilient to regulatory attacks and centralization. This is a public good that benefits all Bitcoin holders.
Mining rewards go directly to your wallet from the protocol. No exchange can freeze your account, delay your withdrawal, or report your transactions to authorities. This sovereignty has real value in an increasingly surveilled financial system.
If mining costs you $50 more per month than simply buying Bitcoin, but you value non-KYC acquisition, education, and heating offset at more than $50, then mining has a positive ROI. The calculation is personal.
Mining vs. Buying: An Honest Comparison
This is the question every prospective miner should ask: would the same capital investment produce more Bitcoin if spent on DCA purchases instead of mining hardware and electricity?
Mining ($5,000 Investment)
- Hardware: $2,400 (Antminer S21 Pro) + $500 infrastructure
- Electricity: $252/month @ $0.10/kWh
- Year 1 total cost: $5,924
- Year 1 BTC earned: ~0.040 BTC (declining with difficulty)
- Ongoing commitment and maintenance required
DCA Buying ($5,000 Investment)
- $5,000 lump sum: ~0.0676 BTC @ $74K
- Or: $417/month DCA for 12 months
- Year 1 total cost: $5,000 (no ongoing costs)
- Year 1 BTC acquired: ~0.068 BTC (varies with price)
- Zero maintenance required
At $0.10/kWh, buying Bitcoin directly produces more BTC for the same investment in year one. Mining only wins when electricity is very cheap (under $0.06/kWh) or when you factor in the non-financial benefits discussed above.
This is not a knock against mining. It is an honest assessment. Many miners mine despite the math because the non-financial value is worth the premium. Just go in with clear eyes. DCA Calculator | Hardware Guide
Frequently Asked Questions
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