Most new miners track Bitcoin’s price obsessively. They celebrate when BTC pumps and panic when it drops. That instinct is understandable, but it is the wrong metric to watch if you are actually running mining hardware.
The number that determines whether your operation survives is hashprice.
What Is Hashprice?
Hashprice is revenue per terahash per day. It combines Bitcoin price, network difficulty, and block subsidy into a single number that tells you exactly what your hardware earns for every TH/s it runs.
When hashprice is $0.06/TH/day and your ASIC does 100 TH/s, you earn $6/day before electricity costs. Simple. Direct. Actionable.
Why Bitcoin Price Alone Misleads You
Here is the problem. Bitcoin can double in price while hashprice falls, if global hashrate doubles at the same time. This has happened repeatedly.
In mid-2021, Bitcoin traded near $50,000. But a massive wave of new ASICs coming online, combined with Chinese miners restarting after the ban exodus, pushed global hashrate up sharply. Hashprice dropped from around $0.30/TH/day to under $0.10/TH/day within months, even as BTC remained elevated.
Miners who sized their operations based on BTC price got squeezed hard. Miners who modeled hashprice scenarios survived.
The Halving Effect
The April 2024 halving cut the block subsidy from 6.25 BTC to 3.125 BTC per block overnight. On the day of the halving, hashprice dropped by roughly 45% in a matter of hours, even though Bitcoin’s price barely moved.
That is how direct the relationship is. Hashprice is not a lagging indicator. It updates in real time with every block.
Every halving cuts your revenue in half unless Bitcoin price or transaction fees compensate. Historically, price has eventually compensated. But “eventually” can mean 12 to 18 months of compressed margins in the meantime.
Using Hashprice to Evaluate Decisions
Before signing a hosting contract or buying ASICs, model two scenarios: current hashprice and hashprice 40% lower. If your operation only breaks even at current hashprice, you will not survive a compression. You need margin.
A Bitmain S21 Pro running at 234 TH/s at $0.07/kWh electricity costs roughly $1.40/day to run. At a hashprice of $0.065/TH/day, it earns about $15.21/day gross. That looks comfortable. But at a hashprice of $0.04/TH/day (which we saw in early 2023), that same machine earns $9.36/day and your margin disappears fast if your hosting rate includes any markup.
The math changes fast. Run it before you commit capital.
What Drives Hashprice Down?
Four things compress hashprice:
- More ASICs coming online. Higher global hashrate means a smaller share per TH/s.
- Halvings. A direct cut to block subsidy with no offset.
- Bitcoin price dropping. The obvious one.
- Transaction fees dropping. Less meaningful today, but increasingly important in a post-subsidy world.
The dangerous scenario is factors one and two happening together, which is exactly what happens in the 6 to 12 months after each halving. New, more efficient ASICs ship, old machines get replaced, and hashrate climbs even as the block reward just got cut.
The Practical Takeaway
Set a hashprice floor for your operation. Calculate the minimum hashprice at which your mining breaks even, including all-in costs: electricity, hosting, hardware depreciation, and maintenance. If current hashprice is less than 1.5x your breakeven hashprice, you are running thin and need a plan for a downturn.
Track hashprice daily at HashrateIndex.com. It is the most important number in your mining business, and it costs nothing to check.