To estimate what a 24/7 YouTube stream costs to run on your own PC, measure the computer’s AC power draw at the wall while it is doing the work you intend to stream. Record the average over a representative interval, convert that average to energy for your operating hours, and apply the electricity price that appears on your bill.
A power-supply label, a brief glance at a watt display, or a general estimate for “a gaming PC” cannot tell you that cost. The useful result is specific to your equipment boundary, stream settings, observation period and tariff.
Why measure the whole PC at the wall
A PC’s power-supply rating describes the supply’s capacity, not how much electricity the computer is drawing at a particular moment. Actual AC input varies with the processor and graphics workload, encoding method, storage, cooling, attached devices and the efficiency of the power supply at that load. The only way to price your particular setup with confidence is to measure it while it performs the intended work.
The measurement should be taken on the AC side, between the mains outlet and the equipment you mean to count. A suitable plug-in electricity meter shows what enters the measured load from the outlet. This captures losses within the computer’s power supply that a software estimate of component use may not include.
Decide first whether you want to price the PC alone or the whole streaming arrangement. A PC-only measurement will not include a separate monitor, router, capture device, audio mixer, speakers or lights. If those items run continuously and belong in your estimate, include them in the measurement boundary or measure and add them separately.
That distinction matters for a small channel as much as for a more elaborate setup. Someone looping a temple darshan video from one computer may only need the computer’s draw; a local news loop with a display and audio equipment may need a wider total. The workflow in setting up a continuous temple darshan stream may help you identify which equipment is actually part of your channel’s operating setup.
Choose a plug-in meter that reports watts and kWh
Look for a wall-side electricity usage meter that reports true or real power in watts and accumulates energy in kilowatt-hours. A meter that can show average watts over an interval is also useful. Watts describe the rate of use at a moment; kilowatt-hours record energy accumulated over time. Having both makes it easier to see variation and calculate an average without relying on a single display reading.
Check the meter’s local plug and outlet compatibility, voltage and maximum current or wattage rating. Follow the manufacturer’s directions and do not connect equipment that exceeds the rating. If the expected load is low or the meter display has coarse resolution, it may not show small changes usefully. The Department of Energy’s FEMP guidance summarises IEC 62301 standby-power measurement with examples of finer resolution at low power; those are measurement examples for low-power tests, not a universal consumer-meter specification for a streaming PC. See DOE FEMP’s summary of standby power measurement.
For a PC, the practical question is whether the meter can measure true power at the load you expect and accumulate enough energy over the test to make an average meaningful. Do not choose a model solely because it has an app or a large screen. A consumer meter’s features, accuracy and safe operating limits should be checked on the manufacturer’s own page before use; no particular model is necessary for the method described here.
A meter that shows only instantaneous watts can still give you a snapshot, but it makes a fluctuating stream workload harder to summarise. Prefer one that records kWh or offers averaging, so you can divide accumulated energy by elapsed time. When comparing options, focus on what the meter measures rather than an unverified promise of precision.
The EPA/ENERGY STAR computer test procedure gives an official example of measuring AC input with a true-power-capable meter. It is a legacy controlled test procedure, not a current recommendation for a particular consumer product or a substitute for reading the meter’s own instructions. Its test configuration directly connects the computer to the meter; for a personal setup, follow the selected meter’s instructions and electrical ratings. EPA computer test procedure
Connect the computer and define what is included
Put the meter between the outlet and the load you have chosen. If measuring the PC alone, connect the computer’s power cable to the meter and leave separately powered equipment outside the test. If your chosen boundary is the whole setup, use only a configuration the meter is rated to support and that its manufacturer permits. A meter measures what is electrically downstream of it, not devices elsewhere on the same room circuit.
Write down what is included before you start. For example: “desktop tower only; display, router and audio interface excluded”. Or: “tower, display and audio interface included; router excluded and measured separately”. This short note prevents a PC-only reading being treated later as the cost of a complete channel.
If you need a total but cannot safely connect all equipment through one meter, make separate measurements and add their energy over matching periods. Keep the method consistent: a router that stays on all day should not be added as though it ran only when the streaming software was open. If an item cycles between activity and standby, its accumulated energy over the same relevant interval is more useful than a brief reading.
The operating system, stream software and channel workflow also belong in your notes. If the computer is doing more than sending a fixed video loop, the workload can vary materially by scene or source. A looped playlist that avoids repeating the same video back-to-back is a different workload from a single static image, and may involve different decoding or scene changes.
Run the actual streaming workload and settings
Start the software and configure the machine as you intend to use it for the live channel. Use the planned resolution, frame rate, encoder, bitrate, scenes, media source and any overlays or audio processing. If you expect to play a game, capture a feed or switch scenes, include those activities. Measuring an idle desktop and assuming it represents a stream misses the work that makes the stream your stream.
Let boot, software launch and any one-off background activity settle if those are not part of ordinary operation. Then begin the observation with the normal stream workload running. If stream preparation, a scheduled restart or other recurring activity is part of the routine you want to price, decide whether it belongs in the average and record that choice. Avoid changing settings midway through a measurement unless you are deliberately testing separate configurations.
For a YouTube broadcast, one useful test is to run the intended stream locally for long enough to exercise the same encoder and media path you will use continuously. You do not need to publish publicly just to see the PC’s electrical draw; what matters for this measurement is that the computer performs the intended work. If you are measuring with a live test, respect your channel’s own publishing plan and any content rights or audience considerations.
Some settings are easy to overlook. A hardware encoder may shift work between the CPU and GPU; a software encoder may keep the processor busier. A complex animated overlay, browser source or changing video can draw different resources from a still background. The point is not to predict which configuration is more efficient from its name, but to measure the chosen configuration and label it clearly.
The same principle applies when a channel’s format changes. If you use FFmpeg to loop a high-resolution video to YouTube Live, test that file and command rather than using an unrelated desktop workload. A result for one stream scene or media file is not automatically the result for another.
Record readings over a representative interval
A meter’s live watt display is a snapshot. It can move as encoding, decoding, graphics activity and background tasks change. Do not present one reading taken at startup or during a quiet scene as the average for a full day. Instead, record energy over an interval in which the normal workload has had time to run, then divide by the elapsed time to obtain average power.
If the meter accumulates kWh, note its starting and ending values and the exact elapsed time. The difference is energy used during the test. Average power in kW is that energy divided by hours; multiply by 1,000 to express the result in watts. If the meter directly reports average watts for the selected interval, record that value along with the interval and meter mode.
Choose a period that represents the pattern you expect the channel to run. There is no single duration that suits every stream: a mostly static devotional loop may be steadier than a channel that alternates video, scenes and interactive elements. If the load clearly varies, observe through the important parts of that cycle, or repeat the test over longer periods. State the duration rather than calling an unspecified reading “typical”.
DOE FEMP’s summary of IEC 62301 says that when consumption fluctuates, energy should be measured over time and divided by the measurement period to determine average power. It describes stable power as variation of less than 5% from the mean over five minutes, but that reference is for standby measurement. Treat it as a cue to distinguish stable from fluctuating readings, not proof that a five-minute observation characterises every stream. The actual channel workload may need a longer interval. DOE FEMP measurement guidance
A practical log can be a few lines: date; equipment measured; workload and settings; start and end time; meter’s start and end kWh; average watts; and notes about interruptions or unusual activity. If you test multiple scenes, games or encoder choices, keep separate rows. Comparing labelled results is more useful than averaging unlike workloads into one unexplained number.
Convert average watts to kWh and electricity cost
Once you have an average power measurement, the energy calculation is straightforward:
kWh = (average watts ÷ 1,000) × operating hours
Then estimate the energy charge by multiplying the resulting kWh by the applicable price per kWh on your electricity tariff. The US Department of Energy’s educational material expresses the same relationship as kilowatt-hours equal kilowatts multiplied by hours, and advises using the local electricity price. DOE energy cost calculation
For illustration of the arithmetic only, if your measured average were 80 W and the operating period were 24 hours, the energy would be 1.92 kWh: (80 ÷ 1,000) × 24. That is not a claim about what a streaming PC draws, and it does not give a cost until you supply your own applicable rate. Substitute your meter result and your billing period’s operating hours.
For a continuous schedule over an ordinary 365-day year, the arithmetic is 24 × 365, or 8,760 hours. Multiply average watts by 8.76 to get annual kWh for that assumed schedule, then apply your rate. This assumes the measured average remains representative and the stream runs continuously; downtime, maintenance, leap years or shorter hours should be handled with the actual total operating hours instead.
A bill may not have one simple price for every unit. Time-of-use periods, consumption tiers, taxes, fixed charges and other adjustments can make a single per-kWh multiplication differ from the final bill. Use the rate that best matches the additional consumption in your circumstances, and call the result an energy estimate rather than a guaranteed increase in the bill. The DOE notes that tiered pricing can complicate the calculation.
If you have already seen a worked example elsewhere, keep its assumed wattage separate from your measured result. The article on calculating the electricity cost of running OBS 24/7 can help with the arithmetic, but your meter reading and hours determine your own estimate. A generic figure such as 100 W is only an input somebody chose; it is not evidence of your computer’s draw.
Report assumptions and limits
A useful estimate is reproducible. Keep the meter model or type, what was connected, date, observation duration, workload and important settings beside the average. Include whether the meter reported average watts or whether you derived them from accumulated kWh. If a display, router or other device was excluded, say so.
Also state the scope of the cost. “PC-only energy at this measured workload” is different from “complete streaming setup”, and both are different from the final change on a household bill. The former is based on the measured boundary; the latter may include tariff structure and charges that are not a simple per-unit energy price.
Do not carry a result across major configuration changes without retesting. Replacing a graphics card, changing encoder settings, adding a display, moving from a still image to animated scenes, or changing the stream’s source can alter the workload. A prior measurement may remain a useful reference, but it does not become a measurement of the new setup.
If the practical problem is that a home PC would need to stay switched on all night, separate that operational concern from the electricity calculation. StreamNeo turns an uploaded video into a YouTube live stream, so you do not have to leave your own computer running for that file-based broadcast. That addresses the specific burden of keeping the PC on; it does not change the need to check your own channel, content and operating requirements.
A measured result is still an estimate of future use, not a promise of a particular bill. Load can vary from day to day, and the billed amount depends on the tariff and hours actually operated. When reporting a figure to a colleague or budgeting for a channel, include the measurement conditions and make clear which costs the calculation excludes.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
How much electricity does a PC use while streaming 24/7?
There is no single figure that describes every PC, stream workload and equipment boundary. Measure your own setup at the wall while it runs the intended workload, derive an average over a stated interval, then multiply by your actual operating hours.
How do I measure my computer’s power consumption?
Use a suitably rated plug-in electricity meter between the mains outlet and the PC, preferably one that reports true watts and accumulated kWh or average watts. Run the intended streaming software and settings, record what is included and how long you measured, then calculate the average rather than treating a momentary display as representative.
How much does it cost to run a PC all day?
Use your measured average watts, divide by 1,000 and multiply by the hours it operates to get kWh. Multiply that energy by the applicable price on your tariff; a tiered or time-of-use bill may not reduce to one simple rate.
Should I include the monitor and router?
Include them if your estimate is meant to cover them and they run as part of the setup. A meter only records the devices downstream of it, so state the boundary or measure excluded equipment separately over a comparable interval.