Understanding each variable lets you make better hardware and hosting decisions. Use our profitability calculator to model any combination of inputs; we do not publish fixed profit or ROI estimates.
1. Hashrate (TH/s)#
Hashrate is the amount of hashing work your machine performs per second, measured in terahashes per second (TH/s). More hashrate means a proportionally larger share of each block reward, all else equal. Your miner competes with the entire global network, so what matters is your hashrate relative to the total.
The three Whatsminer models we sell deliver:
| Model | Hashrate | Efficiency (J/TH) | Power Draw |
|---|---|---|---|
| Whatsminer M70 | 214 to 242 TH/s | ~14.5 J/TH | About 3,140 to 5,000 W |
| Whatsminer M70S | 226 to 264 TH/s | ~13.5 J/TH | About 3,140 to 5,000 W |
| Whatsminer M73 | 470 to 526 TH/s | 14.5 J/TH | ~7,200 W |
2. Energy Efficiency (J/TH)#
J/TH measures how many joules (watts × seconds) your miner consumes per terahash of work. A lower number means higher efficiency, meaning your machine earns the same hashing output for less electricity. Over months of continuous 24/7 operation, efficiency shapes a meaningful share of your running cost.
The Whatsminer M73 is built for hashrate density: 470 to 526 TH/s in a single unit, with quiet hydro operation at 14.5 J/TH. It suits operators who want maximum hashrate per machine. See our full J/TH efficiency guide for the complete spec breakdown.
3. Electricity Rate ($/kWh)#
Electricity is the largest ongoing operating cost in bitcoin mining. Unlike hardware (a one time purchase) or BTC price (outside your control), electricity rate is a direct function of where and how you mine.
| Scenario | Rate ($/kWh, all in est.) |
|---|---|
| US residential average (EIA, July 2026) | ~$0.183 |
| Premium hosted facilities | ~$0.09 to $0.12 |
| Competitive hosted facilities (2026 industry range) | ~$0.065 to $0.08 |
| Fathom Labs, Southeast Texas | $0.07 (all in, no hidden fees) |
Industry rate estimates based on publicly reported 2026 hosted colocation pricing. Rates vary by provider and contract terms.
4. Bitcoin Price (USD)#
Your mining revenue in USD is your BTC earnings × the BTC/USD price. This is the most volatile factor. BTC prices have historically moved 10 to 30% in short periods. As a reference snapshot: BTC traded at approximately $69,000 to $69,400 in early June 2026, having fallen below $70,000 that week. This figure changes daily. Never plan a mining operation on a single BTC price assumption. Model a range of scenarios with our calculator.
5. Network Difficulty#
Network difficulty adjusts every ~2,016 blocks (~2 weeks) to keep block time close to 10 minutes. When the total network hashrate rises, difficulty increases and each miner earns less. When hashrate falls, difficulty decreases and each miner earns more.
In 2026, difficulty fell approximately 10.7% across six consecutive downward adjustments as some large miners reallocated compute capacity to AI/HPC workloads. As of early June 2026, network difficulty was approximately 139 T, with network hashrate estimated at ~740 EH/s by CoinWarz or ~1,000 EH/s by minerstat; trackers diverge due to methodology differences.
For more on how difficulty affects ROI, see our difficulty and ROI guide.