15%
First purchase
On every new user’s first purchase. No limit on the purchase amount.
SHA-256
Antminer S9K Profitability Calculator
Antminer S9K ASIC profitability calculator.
13.5 TH/sHashrate
1148WPower
80 J/THEfficiency
Configure Your Miner
Adjust parameters to match your setup
ASIC ModelAntminer S9K
Earnings Estimate
Based on current BTC price ~$80,000
Monthly Net Profit+$1.09
Daily Revenue$0.48
Daily Electricity−$0.45
Daily Net+$0.04
Break-even electricity$0.04/TH/day
Payback period~11.5 years
Antminer S9K Overview
ManufacturerBitmain
AlgorithmSHA-256
Target UseBitcoin / BCH Mining
Release Year2019
PositioningLegacy Bitcoin ASIC
The Antminer S9K is Bitmain’s older-generation SHA-256 Bitcoin miner, designed for Bitcoin mining with simple setup and low second-hand hardware cost. Compared with modern S19 and S21 models, it has much lower efficiency, so profitability depends heavily on access to very cheap electricity and stable uptime. For users checking Antminer S9K profitability, this model should be evaluated carefully before deployment using real power costs, BTC revenue, and miner condition.
Antminer S9K Specifications
Hashrate13.5 TH/s
Power Consumption1148 W
Efficiency80 J/TH
AlgorithmSHA-256
Noise Level76 dB
CoolingAir (2 fans)
Dimensions321.3 × 129.6 × 200 mm
Weight5.46 kg
Profitability Breakdown
At $0.033/kWh, electricity consumes $0.45/day, leaving $0.04 net. Break-even at $0.04/kWh.
$0.02/TH/day
+$0.21
$0.03/TH/day
+$0.08
$0.04/TH/day
$-0.06
$0.05/TH/day
$-0.19
$0.06/TH/day
$-0.33
Activate the TBB tariff and reduce electricity costs for this miner.
How Electricity Price Affects Antminer S9K
Break-even electricity price$0.04/TH/day
Antminer S9K efficiency of 80 J/TH means Hight
Electricity rateStatus
Below $0.03/kWhProfitable
$0.03 – $0.04/kWhMarginal
Above $0.04/kWhUnprofitable
Home Mining vs Hosting for Antminer S9K
Home Mining
- High electricity rates
- 76 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$150
Monthly Profit $1.09
Break-even~11.5 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 S9K
Pros
- Low acquisition cost
- Supports Bitcoin and other SHA-256 coins
- Simple and proven Bitmain platform
- Relatively low 1.15 kW power draw
Cons
- Very poor efficiency by modern standards
- Low hashrate compared with modern ASICs
- High 76 dB noise level