Top coin
Top profit
$0.06/ day7d median $-0.04 · $-0.71 to $0.53
Best hashrate
235 TH/sSHA-256
Power
3500 W
Profit calculator
Your electricity price and fleet size against today's most profitable coins for this device.
* At $0.08/kWh. Adjust in the mining calculator.
Worth switching?
Bitcoin is currently 105.1% more profitable than BitcoinII on this device, and has been ahead for 23 h 57 min.
BC2$-1.25/day
BTC$0.06/dayHigh confidence · 75/100Switching has its own costs (downtime, payout thresholds, pool minimums). This compares gross mining economics only. See what the estimate does not model.
Performance per algorithm
Measured hashrate and power draw; these numbers feed every profit figure on the site.
| Algorithm | Hashrate | Power | Efficiency | Updated |
|---|---|---|---|---|
| SHA-256 | 235 TH/s | 3878 W | 60.6 GH/s/W | 2026-11-15 |
Frequently asked questions about the Bitmain Antminer S21
What hashrate does the Bitmain Antminer S21 reach?
The Antminer S21 reaches 235 TH/s on SHA-256 at around 3878 W.
How much can the Bitmain Antminer S21 earn per day?
At current network conditions the Antminer S21 earns about $7.51 per day mining BTC, for $0.06 of profit at $0.08/kWh. Use the calculator above for your own electricity price.
Is the Bitmain Antminer S21 still worth it?
Mining stays profitable with the Antminer S21 as long as your electricity costs less than $0.09 per kWh at today's rates.
Which coins can the Bitmain Antminer S21 mine?
The most profitable options today are BTC, BC2, BCH — the full ranking is in the profit calculator above.