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Windminers
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ASIC
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KHeavyHash
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RELEASED JAN 2025
Windminers Wind Miner K9 — ROI calculator
Profit /day
$-0.36
Income /day
$7.68
216 KAS/day
Cost $8.04 @ $0.1/kWh
Hashrate
10.3Th/s
KHeavyHash
Power · Efficiency
3350.0W
0.33 j/Gh
Windminers Wind Miner K9 loses up to $0.36 a day, best on KHeavyHash mining at 10.3 Th/s. Also available: KHeavyHash hashpower sale ($-4.76/day). Pulling 3,350 W from the wall — at $0.10/kWh, not quite breaking even at today's rates.
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9 minutes ago
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Tap to switch · 7 sections ROI calculator 6/7
ROI calculator
ROI calculator for Windminers Wind Miner K9
Model payback, electricity, and first-year return for this rig.
Hardware cost
$5,000
Electricity rate
$0.10/kWh
Runtime per day
24
Pool fee
2.0%
Difficulty growth /yr
+0%
Net profit /day
$0.00
after electricity & fees
Payback period
—
—
First-year return
$0
—
Projected cumulative profit
The line crosses $0 on the day you break even. Everything above is pure profit.
Monthly P&L · 3-year horizon
Capital cost is booked in month 1. Cumulative columns include the rig purchase, so Net goes positive at true breakeven.
| Month | Earned (mo) | Cost burned (mo) | Cumulative earned | Cumulative cost | Net | % ROI |
|---|
Profit vs cost
cost 104.69%
Tap to switch · 7 sections ROI calculator 6/7
ROI calculator
ROI calculator for Windminers Wind Miner K9
Model payback, electricity, and first-year return for this rig.
Hardware cost
$5,000
Electricity rate
$0.10/kWh
Runtime per day
24
Pool fee
2.0%
Difficulty growth /yr
+0%
Net profit /day
$0.00
after electricity & fees
Payback period
—
—
First-year return
$0
—
Projected cumulative profit
The line crosses $0 on the day you break even. Everything above is pure profit.
Monthly P&L · 3-year horizon
Capital cost is booked in month 1. Cumulative columns include the rig purchase, so Net goes positive at true breakeven.
| Month | Earned (mo) | Cost burned (mo) | Cumulative earned | Cumulative cost | Net | % ROI |
|---|
Frequently asked
About the Windminers Wind Miner K9
Is the Windminers Wind Miner K9 profitable?
As of October 2026, the Windminers Wind Miner K9 earns $-0.36/day mining KHeavyHash at an electricity cost of $0.1/kWh. At this electricity rate it is not profitable.
What is the payback period for the Windminers Wind Miner K9?
Payback equals hardware cost divided by daily profit. The ROI calculator on this page projects payback months for the Windminers Wind Miner K9 at $0.1/kWh — adjust the electricity rate and the hardware cost to match your scenario. Most miners aim for 12–24 month payback on new hardware.
What's the break-even electricity rate for the Windminers Wind Miner K9?
Break-even electricity is the rate above which the Windminers Wind Miner K9 stops being profitable. The calculator below derives it from the rig's revenue and power draw — anything below this rate yields positive daily profit, anything above turns the rig into a net loss.
