Electricity Cost Calculator — Appliance & Gaming Power Cost
Estimate daily, monthly, and yearly electricity cost from wattage, runtime, quantity, and rate per kWh. Includes gaming device presets (PS5, Xbox, PC) with per-session cost framing.
Last updated: 2026-03-28
Electricity cost calculator
Enter your values
Estimate how much a device costs to run from wattage, runtime, quantity, and your electricity rate.
Estimated monthly cost
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Enter the device wattage and your electricity rate to estimate daily, monthly, and yearly running cost.
Calculation History(0)
Example calculations
Tap an example to prefill the calculator with sample values.
Space heater
1500 W, 5 hours/day, 30 days, $0.18/kWh
A quick way to see why a high-watt appliance can move the monthly bill fast in colder weather.
Result: About $40.50 per month and $486 per year
PS5 — 3 hr sessions
200W console, 5 sessions/week at $0.12/kWh
See how much a PS5 actually costs to run per session and per month — often less than people expect.
Result: About $0.07 per session and $2.16 per month
High-end gaming PC
550W PC, 4 hrs/day, $0.22/kWh
A high-end rig draws more power than a console but per-session cost is still modest compared to the hardware investment.
Result: About $14.52 per month — roughly $0.48 per 4-hour session
Eight LED bulbs
9 W each, 6 hours/day, 31 days, $0.16/kWh
Shows how a multi-device setup can still stay cheap when each device is efficient.
Result: Only about $2.14 per month for the full bulb group
How the electricity-cost estimate works
The calculator multiplies wattage by hours of use, converts that figure into kilowatt-hours, and then applies your rate per kWh. Quantity is included so you can estimate a full group of identical devices instead of only one appliance at a time.
The monthly and yearly outputs assume the same usage pattern repeats each month. Real utility bills can still differ because of taxes, delivery fees, tiered pricing, and the fact that many devices do not draw their maximum label wattage constantly.
Electricity cost FAQs
How wattage, runtime, and rate per kWh turn into an energy-cost estimate.
What is the difference between watts and kWh?
Watts measure power draw at a moment in time, while kilowatt-hours measure energy used over time. A device can have a high watt rating, but its actual cost depends on how many hours it runs.
Why might my actual bill be higher than the estimate?
Utilities often add delivery charges, taxes, and sometimes tiered rates that sit on top of the raw energy charge. This calculator focuses on the flat energy-rate portion so it stays simple and transparent.
Should I use label wattage or measured wattage?
Measured wattage is usually better because many devices do not draw their maximum rated power all the time. If you only have the label, the calculator still gives a useful planning estimate.
Why does quantity matter?
A single bulb or charger may look cheap in isolation, but the total cost changes once you multiply that draw across several identical devices using the same schedule.
How much does it cost to run a PS5?
A PS5 draws about 200 watts while gaming. At $0.12/kWh and 3-hour sessions, that is roughly $0.07 per session or about $1.50–$2.20 per month depending on how often you play. Standby mode adds very little — around 1–2 watts.
How much electricity does a gaming PC use?
A mid-range gaming PC draws around 300–400 watts under load, while a high-end build with a powerful GPU can reach 500–650 watts. At $0.18/kWh and 4 hours per day, a 550W rig costs roughly $12–15 per month. The monitor adds another 35–55 watts on top.
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