Mining Hardware ROI Calculator
Calculate your exact break-even date and return on investment for any ASIC miner. Accounts for difficulty growth, BTC price scenarios, and all operating costs.
| Month | Daily Profit | Monthly Revenue | Monthly Elec | Monthly Profit | Cumulative | Status |
|---|
How to Calculate Bitcoin Mining ROI
Bitcoin mining ROI (return on investment) is calculated by dividing your total profit by your total investment cost. This calculator tracks cumulative profit month by month, factoring in: hardware purchase price, ongoing electricity cost, network difficulty growth, BTC price trajectory, and the 2028 block reward halving.
The formula is: ROI% = (Total Profit ÷ Total Investment) × 100. Break-even is when cumulative profit crosses zero — the point at which your miner has paid for itself.
Real-World Bitcoin Mining ROI Examples (2026)
Here's how ROI varies by hardware and electricity cost at current BTC price and network difficulty:
| Miner | Hardware Cost | $/kWh | Daily Profit | Monthly Profit | Break-Even |
|---|---|---|---|---|---|
| Antminer S21 Pro (234 TH/s) | $2,500 | $0.04 | ~$5.10 | ~$153 | ~16 months |
| Antminer S21 Pro (234 TH/s) | $2,500 | $0.06 | ~$3.00 | ~$90 | ~28 months |
| Antminer S21 Pro (234 TH/s) | $2,500 | $0.10 | ~-$1.20 | ~-$36 | Never |
| Whatsminer M66S (298 TH/s) | $3,200 | $0.04 | ~$6.50 | ~$195 | ~16 months |
| Whatsminer M66S (298 TH/s) | $3,200 | $0.06 | ~$4.00 | ~$120 | ~27 months |
Estimates at current BTC price and network difficulty, with 30% annual difficulty growth. Actual results vary — use the calculator above with your exact inputs.
Hardware Depreciation and Resale Value
ASIC miners lose value over time as newer, more efficient hardware enters the market. A miner bought for $2,500 today typically retains 20–30% of its value after 2–3 years if maintained well. This resale value should be factored into your total ROI calculation — our calculator includes a "Hardware Resale Value" input for exactly this purpose.
Key factors affecting ASIC resale value: remaining profitability at sale time, physical condition, algorithm demand, and whether newer generation hardware has been released. Bitcoin miners tend to hold value better than altcoin miners due to sustained SHA-256 demand.
Frequently Asked Questions
How long does it take to break even on a Bitcoin miner? +
Break-even depends on hardware cost, daily profit, and difficulty growth. At $0.06/kWh with an Antminer S21 Pro bought for $2,500, break-even ranges from 12 to 24 months depending on BTC price assumptions.
Does this ROI calculator account for the Bitcoin halving? +
Yes. The 2028 halving is applied at month 23, halving the block reward to 1.5625 BTC. The projection table highlights the halving month with an orange marker showing the profit impact.
What annual difficulty growth should I use for mining ROI? +
Bitcoin difficulty has grown 30-70% annually. The default 30% per year is conservative. Use 50-80% for a scenario that better tests your hardware longevity against rising competition.