15%
First purchase
On every new user’s first purchase. No limit on the purchase amount.
SHA-256
Antminer S21 Pro Profitability Calculator
Real-time mining profit for Antminer S21 Pro. Adjust electricity cost and pool fee to see your exact daily earnings.
270 TH/sHashrate
3531WPower
15.1 J/THEfficiency
Configure Your Miner
Adjust parameters to match your setup
ASIC ModelAntminer S21 Pro
Earnings Estimate
Based on current BTC price ~$63,864.94
Monthly Net Profit+$3.82
Daily Revenue$7.96
Daily Electricity−$7.83
Daily Net+$0.13
Break-even electricity$0.03/TH/day
Payback period~104.8 years
Antminer S21 Pro Overview
ManufacturerBitmain
AlgorithmSHA-256
Target UseHosting / Industrial
Release Year2024
PositioningHigh efficiency flagship
The Antminer S21 Pro is Bitmain’s high-performance Bitcoin miner designed for professional mining operations and hosting facilities. With strong hashrate, advanced energy efficiency, and stable SHA-256 performance, it is built for miners who want to maximize BTC output while keeping power costs under control. For users checking Antminer S21 Pro profitability, this model is one of the strongest options for long-term ROI-focused mining.
Antminer S21 Pro Specifications
Hashrate270 TH/s
Power Consumption3531 W
Efficiency15.1 J/TH
AlgorithmSHA-256
Noise Level75 dB
CoolingAir
Dimensions400 × 195 × 290 mm
Weight14.4 kg
Profitability Breakdown
At $0.029/kWh, electricity consumes $7.83/day, leaving $0.13 net. Break-even at $0.03/kWh.
$0.02/TH/day
+$2.56
$0.03/TH/day
$-0.14
$0.04/TH/day
$-2.84
$0.05/TH/day
$-5.54
$0.06/TH/day
$-8.24
Activate the TBB tariff and reduce electricity costs for this miner.
How Electricity Price Affects Antminer S21 Pro
Break-even electricity price$0.03/TH/day
Antminer S21 Pro efficiency of 15.1 J/TH means this model maintains profitability at competitive service rates in most market conditions — making it suitable for mid-tier hosting contracts.
Electricity rateStatus
Below $0.02/kWhProfitable
$0.02 – $0.03/kWhMarginal
Above $0.03/kWhUnprofitable
Home Mining vs Hosting for Antminer S21 Pro
Home Mining
- High electricity rates
- 75 dB noise
- Self-managed maintenance
- Limited scalability
- DIY cooling required
- Full hardware control
ECOS HostingRecommended
- Industrial rates $0.04–0.06/kWh
- Zero noise concerns
- Managed 24/7
- Scale from 1 to 1000+ units
- Professional cooling
- Higher net profit margin
ROI and Payback Period
Hardware Price$4,800
Monthly Profit $3.82
Break-even~104.8 years
ROI depends on BTC price and network difficulty. The full ROI Calculator lets you model bear-market and bull-market scenarios side by side.
Open ROI CalculatorPros & Cons of Antminer S21 Pro
Pros
- Top-tier efficiency at 15.1 J/TH
- High hashrate shortens payback period
- Strong secondary market resale value
- Proven Bitmain reliability
Cons
- High upfront cost (~$4,800+)
- 3.5 kW draw requires dedicated circuit
- 75 dB noise unsuitable for home use
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