Opacra Mining Calculator
Plug in your electricity rate, pick a rig, and see exactly how many days until it pays for itself. Every number updates in real time.
Hashrate
4.78 MH/s
Difficulty
143,275,828
Block reward
2.3737 OPCA
Block time
30s
Height
18,536
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.