How do I factor in power costs and hardware in Monero mining profit?
To work out your Monero mining profit, subtract electricity and hardware costs from the value of the XMR you earn. Use your actual power use and a realistic allowance for wear and lost hardware value—not just the earnings number a mining calculator shows.
Measure the power you actually pay for
Your electricity bill charges you for kilowatt-hours (kWh): the energy used by a 1,000-watt device running for one hour.
Use this formula:
Daily electricity cost = watts ÷ 1,000 × mining hours per day × electricity price per kWh
For example, if your computer draws 120 watts while mining and electricity costs $0.20 per kWh:
- Energy used over 24 hours: 120 ÷ 1,000 × 24 = 2.88 kWh
- Daily electricity cost: 2.88 × $0.20 = $0.576, or about $0.58
Those are example inputs, not expected Monero earnings.
A plug-in power meter gives you a better measurement than the processor’s advertised wattage. It includes power used by memory, fans, and the power supply.
Choose the right baseline:
- You keep the computer on only to mine: count its full power draw.
- Your computer would already be running: count the extra power mining adds.
- Mining stops it from sleeping: include that extra running time, too.
Use your electricity rate including usage-based delivery charges and taxes. If rates change by time of day, calculate each period separately. Add extra cooling costs when mining makes your air conditioner work harder.
Give hardware a daily cost
Hardware is not free just because you already own it. Mining can add fan wear, and money tied up in equipment has other possible uses.
For a new mining purchase, estimate:
Daily hardware cost = (purchase cost − expected resale value) ÷ expected mining days
Suppose you buy a computer for $600, expect to sell it for $150, and plan to mine for 900 days. Your hardware allowance is $0.50 per day.
Add any mining-specific upgrades, replacement fans, or repairs. Keep resale estimates cautious.
For equipment you already own, its original purchase price is a past expense. When deciding whether to start mining now, focus on extra wear, upgrades, and any resale value you sacrifice. Avoid charging yourself for the same purchase twice.
Compare earnings with both costs
Your hashrate is the number of mining calculations your device performs each second. Measure it using the setup you actually plan to run, then enter that figure into a current Monero mining calculator.
Monero’s RandomX mining method favors processors, or CPUs. If you mine through a browser, do not assume your results will match dedicated mining software. Check what the service actually mines, how it pays you, and what fees it takes.
Calculate:
Daily profit = daily mining revenue − fees − electricity − hardware allowance
If a calculator already subtracts a cost, do not subtract it again.
Using the examples above, electricity and hardware together cost about $1.08 per day, before fees or cooling. Your revenue must exceed that to show a profit under those assumptions. This is a cost threshold, not an earnings forecast.
The bottom line
Track both your cash surplus after electricity and your full profit after hardware costs. Check live earnings estimates regularly, because XMR’s price and mining competition change. If revenue does not cover power alone, buying more hardware will not fix that setup’s losses.
