Key Inputs and Real-World Defaults
The ASIC ROI Calculator requires seven key inputs to deliver accurate profitability estimates. Each parameter reflects real-world factors that influence mining returns, from hardware specifications to market conditions. Understanding these inputs allows miners to model scenarios effectively.
The tool provides sensible defaults drawn from popular hardware and late 2025 Bitcoin network data, enabling quick assessments without starting from scratch.
ASIC Purchase Cost
This is the upfront price of the mining hardware in USD. It directly affects break-even time. Higher costs require stronger daily profits to recover the investment quickly.
Defaults often use prices for mid-range efficient ASICs, around $2,500 for a unit delivering solid performance in current conditions.
Hash Rate
- Measured in terahashes per second (TH/s)
- Represents the miner's computational power
- Higher values increase your share of network rewards
Power Consumption
In watts, this determines electricity expenses. Modern ASICs balance high hash rates with reasonable power draw for better efficiency.
Defaults reflect units like those in the Antminer S21 series, commonly around 3,100 watts for 140–200 TH/s models.
Electricity Cost
Entered as dollars per kilowatt-hour ($/kWh), this is often the largest ongoing expense. Low rates (below $0.10) are crucial for profitability in high-difficulty environments.
The default of $0.10 represents a typical residential or hosted rate in favorable regions.
Coin Price and Block Reward
- Coin price in USD drives revenue value
- Block reward is the fixed subsidy per block (3.125 BTC post-2024 halving)
Defaults use approximate year-end values, such as $88,000–$100,000 for Bitcoin price.
Network Hash Rate
In exahashes per second (EH/s), this shows total network power. Your revenue share is inversely proportional—higher network rates reduce individual earnings.
As of late 2025, the Bitcoin network exceeds 1,000 EH/s, with defaults set conservatively around 650–1,135 EH/s to reflect growth.
FAQ
Where do defaults come from?
Based on popular ASICs and public network statistics for quick, realistic starting points.
Should I always use defaults?
No—update coin price and network hashrate frequently for current accuracy.
Which input matters most?
Electricity cost and network hashrate often have the biggest impact on profitability.
Mastering these inputs leads to better-informed ASIC purchasing and operational decisions.