Tool · estimates only
Antminer S21 — 151Th Profitability Calculator
Estimated mining results
Antminer S21 — 151Th
Bitcoin (BTC) · SHA-256
- BTC mined / day
- 0.00006647
- 0.0020 BTC / 30 days
- Gross revenue / day
- $5.37
- $161 / 30 days
- Electricity cost / day
- $5.04
- $151 / 30 days
- Net operating result / day
- $0.33
- $10 / 30 days
- Break-even electricity
- $0.0639/kWh
- Revenue per TH/s
- $0.0355/day
- Energy / day
- 84 kWh
- Energy / 30 days
- 2,520 kWh
Estimate only, not a promise of earnings. Calculated from the inputs shown, at constant difficulty and price. Difficulty, price, transaction fees, pool fees, uptime, hardware cost, cooling, downtime, taxes and depreciation may affect actual results.
Network data as of 2026-10-28 13:45 UTC · Price source: mempool.space · Difficulty source: mempool.space · Block reward: 3.139 BTC
Antminer S21 — 151Th at different electricity prices
Under today's network conditions the Antminer S21 — 151Th breaks even on electricity at about $0.064/kWh. Below that price estimated revenue exceeds the electricity bill; above it, it does not.
| Power price | Electricity / day | Electricity / 30 days | Est. revenue / day | Est. net / day | Est. net / 30 days |
|---|---|---|---|---|---|
| $0.03/kWh | $2.52 | $76 | $5.37 | $2.85 | $85 |
| $0.04/kWh | $3.36 | $101 | $5.37 | $2.01 | $60 |
| $0.05/kWh | $4.20 | $126 | $5.37 | $1.17 | $35 |
| $0.06/kWh | $5.04 | $151 | $5.37 | $0.33 | $10 |
| $0.07/kWh | $5.88 | $176 | $5.37 | -$0.51 | -$15 |
| $0.08/kWh | $6.72 | $202 | $5.37 | -$1.35 | -$41 |
| $0.10/kWh | $8.40 | $252 | $5.37 | -$3.03 | -$91 |
Power and energy at scale
Electrical load and energy for the miners alone, from rated power. Site load is higher once cooling and distribution losses are added.
| Units | Hashrate | Miner load | Energy / day | Energy / 30 days | Est. BTC / 30 days |
|---|---|---|---|---|---|
| 1 | 151 TH/s | 3.5 kW | 84 kWh | 2,520 kWh | 0.00199 |
| 10 | 1.51 PH/s | 35 kW | 840 kWh | 25,200 kWh | 0.01994 |
| 100 | 15.1 PH/s | 350 kW | 8,400 kWh | 252,000 kWh | 0.19941 |
| 1,000 | 151 PH/s | 3.5 MW | 84,000 kWh | 2,520,000 kWh | 1.994 |
Planning 100 units or more? Speak with mining sales.
Network inputs used on this page
- Bitcoin price
- $80,730
- mempool.space
- Network difficulty
- 140.58 T
- mempool.space
- Block reward
- 3.1390 BTC
- subsidy + average fees
- Pool fee / uptime
- 2% / 100%
- calculator defaults
Estimates, not a promise of earnings. Figures are calculated from the inputs shown, using network data as of 2026-10-28 13:45 UTC, and assume difficulty and price stay constant, which they do not. Hardware cost, cooling overhead, downtime, taxes and depreciation are not included.
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