Antminer S19k Pro profitability
The S19k Pro is the smallest machine here: 120 TH/s at 2,760 W, or 23 J/TH. It is the least efficient model on this list, so it is the first to stop paying for its power when hashprice drops.
- Hashrate: 120 TH/s
- Power: 2,760 W
- Efficiency: 23 J/TH
- Source: Bitmain spec sheet, accessed October 21, 2026.
Daily profit by power price
At the hashprice below, one Antminer S19k Pro grosses about $4.57 a day. At $0.05/kWh it nets about $1.26 a day, and it breaks even at about $0.069/kWh.
| Power price | Revenue / day | Power / day | Profit / day | Profit / 30 days |
|---|---|---|---|---|
| $0.03 | $4.57 | $1.99 | $2.58 | $77 |
| $0.04 | $4.57 | $2.65 | $1.92 | $58 |
| $0.05 | $4.57 | $3.31 | $1.26 | $38 |
| $0.06 | $4.57 | $3.97 | $0.59 | $18 |
| $0.07 | $4.57 | $4.64 | -$0.07 | -$2 |
| $0.08 | $4.57 | $5.30 | -$0.73 | -$22 |
| $0.09 | $4.57 | $5.96 | -$1.39 | -$42 |
| $0.10 | $4.57 | $6.62 | -$2.06 | -$62 |
Hashprice $0.0381 per TH/s per day, computed October 21, 2026 at 20:50 UTC from the mempool.space API: BTC $84,647, difficulty 140.58 T, average reward 3.1420 BTC per block over the last 144 blocks. Revenue is gross: no pool fee, downtime, hosting markup or hardware cost. Assumes the machine runs at spec 24 hours a day (our assumption). Figures update when the site is rebuilt.
Open the ASIC calculator
Wondering whether the same kilowatts would earn more renting GPUs? Try the mine vs AI per-kW calculator. Other models: Antminer S21 XP · Antminer S21 Pro · Antminer S21 · Antminer S19 XP, or see all ASICs.